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1. A Comparison of the Effects of Two Prey Enrichment Media on Growth and Survival of Pacific Bluefin Tuna, Thunnus orientalis, Larvae

Author:
Maria S. Stein; Daniel Margulies; Jeanne B. Wexler; Vernon P. Scholey; Katagiri Ryo; Tomoki Honryo; Tsukasa Sasaki; Angel Guillen; Yasuo Agawa; Yoshifumi Sawada
Source:
Journal of the World Aquaculture Society 2018 v.49 no.1 pp. 240-255
ISSN:
0893-8849
Subject:
Thunnus orientalis; biomass; digestive system; larvae; plankton; rearing; tuna; water temperature
Abstract:
... Three experiments were conducted to investigate the growth, survival, and standardized cohort biomass of Pacific bluefin tuna, Thunnus orientalis, larvae fed nutritionally enhanced prey during the first week of feeding using two commonly used, commercially available enrichment media, AlgaMac Enrich and Marine Glos. T. orientalis larvae exhibited exponential growth in standard length and dry weight ...
DOI:
10.1111/jwas.12478

2. A Dynamic Energy Budget simulation approach to investigate the eco-physiological factors behind the two-stanza growth of yellowfin tuna (Thunnus albacares)

Author:
E. Dortel; L. Pecquerie; E. Chassot
Source:
Ecological modelling 2020 v.437 pp. 109297
ISSN:
0304-3800
Subject:
Thunnus albacares; Thunnus orientalis; behavior change; body size; data collection; diet; ecophysiology; energy; farming systems; fish communities; fish culture; food availability; growth curves; habitats; juveniles; models; ontogeny; prediction; tuna; Indian Ocean; Panama
Abstract:
... The growth of yellowfin tuna has been the subject of considerable research efforts since the early 1960s. Most studies support a complex two-stanza growth pattern with a sharp acceleration departing from the von Bertalanffy growth curve used for most fish populations. This growth pattern has been assumed to result from a combination of physiological, ecological and behavioral factors but the role ...
DOI:
10.1016/j.ecolmodel.2020.109297

3. A functional genomics tool for the Pacific bluefin tuna: Development of a 44K oligonucleotide microarray from whole-genome sequencing data for global transcriptome analysis

Author:
Motoshige Yasuike; Atushi Fujiwara; Yoji Nakamura; Yuki Iwasaki; Issei Nishiki; Takuma Sugaya; Akio Shimizu; Motohiko Sano; Takanori Kobayashi; Mitsuru Ototake
Source:
Gene 2016 v.576 no.2 pp. 603-609
ISSN:
0378-1119
Subject:
Gram-negative bacteria; Thunnus orientalis; cell wall components; expressed sequence tags; farming systems; fish culture; fishery resources; gene expression; genomics; immunostimulants; leukocytes; lipopolysaccharides; markets; microarray technology; nutrition; oligonucleotides; reproduction; sequence analysis; transcriptomics; tuna
Abstract:
... Bluefin tunas are one of the most important fishery resources worldwide. Because of high market values, bluefin tuna farming has been rapidly growing during recent years. At present, the most common form of the tuna farming is based on the stocking of wild-caught fish. Therefore, concerns have been raised about the negative impact of the tuna farming on wild stocks. Recently, the Pacific bluefin t ...
DOI:
10.1016/j.gene.2015.10.023

4. A hybrid stock synthesis—Virtual population analysis model of Pacific bluefin tuna

Author:
Alec D. MacCall; Steven L.H. Teo
Source:
Fisheries research 2013 v.142 pp. 22-26
ISSN:
0165-7836
Subject:
Thunnus orientalis; biomass; environmental factors; fish; fisheries; hybrids; models; mortality; spawning
Abstract:
... The fishery selectivity or availability of younger ages of highly mobile species can be strongly influenced by changes in environmental conditions or fishery targeting, and may not conform to the parametric selectivity curves commonly used in integrated assessment models such as stock synthesis (SS), which could lead to unreliable results. In contrast, a virtual population analysis (VPA) makes no ...
DOI:
10.1016/j.fishres.2012.05.001

5. A possible explanation for the population size discrepancy in tuna (genus Thunnus) estimated from mitochondrial DNA and microsatellite data

Author:
Fan Qiu; Andrew Kitchen; Peter Beerli; Michael M. Miyamoto
Source:
Molecular phylogenetics and evolution 2013 v.66 no.2 pp. 463-468
ISSN:
1055-7903
Subject:
Ambystoma tigrinum; Bayesian theory; Thunnus albacares; Thunnus orientalis; alleles; genetic variation; life history; microsatellite repeats; mitochondrial DNA; models; mutation; philopatry; phylogeny; population size; tuna
Abstract:
... A recent study using both mitochondrial DNA (mtDNA) and microsatellite data reported on a population size discrepancy in the eastern tiger salamander where the effective population size (Ne) estimate of the former exceeded that of the latter. That study suggested, among other hypotheses, that homoplasy of microsatellite alleles is responsible for the discrepancy. In this investigation, we report 1 ...
DOI:
10.1016/j.ympev.2012.05.002
PubMed:
22579759

6. A review of the broodstock management and larviculture of the Pacific northern bluefin tuna in Japan

Author:
Shukei Masuma; Takayuki Takebe; Yoshitaka Sakakura
Source:
Aquaculture 2011 v.315 no.1-2 pp. 2-8
ISSN:
0044-8486
Subject:
research and development; islands; mitochondrial DNA; gonads; universities; abnormal development; scientists; fisheries; net pens; juveniles; cannibalism; research management; tanks; federal government; morphometry; farming systems; tuna; feed formulation; larvae; fish culture; Thunnus orientalis; business enterprises; endocrinology; manufacturing; nutrition; spawning; environmental factors; captive animals; Japan
Abstract:
... We reviewed research on the broodstock management and larviculture of the Pacific northern bluefin tuna (PBT) Thunnus orientalis in Japan. Japan has been at the forefront of PBT research since 1970 due to the participation by federal and prefectural governments and universities in a national project aimed to optimize productivity of the sea around Japan. In 1979, scientists at Kinki University suc ...
DOI:
10.1016/j.aquaculture.2010.05.030

7. Amounts and compositional analysis of glycosaminoglycans in the tissue of fish

Author:
Kazuya Arima; Hiroyuki Fujita; Ryosuke Toita; Ayaka Imazu-Okada; Nao Tsutsumishita-Nakai; Naoko Takeda; Yasuhiro Nakao; Hui Wang; Manami Kawano; Kenya Matsushita; Haruna Tanaka; Shin Morimoto; Ayumi Nakamura; Masahiro Kitagaki; Yuka Hieda; Ryuya Hatto; Ayako Watanabe; Takeru Yumura; Takashi Okuhara; Hiroki Hayashi; Katsuhiko Shimizu; Kiyoshi Nakayama; Shinya Masuda; Yukio Ishihara; Shunsuke Yoshioka; Shinobu Yoshioka; Seizo Shirade; Jun-ichi Tamura
Source:
Carbohydrate research 2013 v.366 no. pp. 25-32
ISSN:
0008-6215
Subject:
Bothrocara; Careproctus; Chondrichthyes; Limanda aspera; Lycodes; Nemipterus; Oreochromis niloticus; Scomber scombrus; Sebastolobus macrochir; Thunnus orientalis; Trachurus japonicus; Watasenia scintillans; bream; fins; glycosaminoglycans; head; marine fish; molecular weight; sole; squid; taxonomy; tissues
Abstract:
... We isolated GAGs from the inedible parts; head, skin, internal organs, fins, scales and spine, of atlantic mackerel (Scomber scombrus), japanese jack mackerel (Trachurus japonicus), pacific bluefin tuna (Thunnus orientalis), yellowfin sole (Limanda aspera), broadbanded thornyhead (Sebastolobus macrochir), golden threadfin bream (Nemipterus virgatus), and nile tilapia (Oreochromis niloticus). We al ...
DOI:
10.1016/j.carres.2012.11.010

8. Analysis of sinking death using video images of the swimming performance of Pacific Bluefin tuna (Thunnus orientalis) larvae

Author:
Y. Ina; T. Takagi; S. Miyashita; M. Kurata; T. Honryo; Y. Sawada; H. Fukuda; S. Torisawa
Source:
Aquacultural engineering 2020 v.90 pp. 102099
ISSN:
0144-8609
Subject:
Thunnus orientalis; aquacultural engineering; behavior; death; depth; energy; frequency; hatching; larvae; light; lighting; risk; survival rate; swim bladder; swimming; tanks; water
Abstract:
... In this study, we aimed to clarify the mechanism of sinking death during the larval stage of Pacific Bluefin tuna Thunnus orientalis by investigating the effects of swimming performance on sinking death, using a behavioral approach. Swimming performance was examined 3–9 days after hatching (DAH) under day and night light conditions in cuboid experimental tanks. Swimming behavior variables such as ...
DOI:
10.1016/j.aquaeng.2020.102099

9. Appropriate size for transportation to sea cages for juvenile Pacific bluefin tuna Thunnus orientalis (Temminck and Schlegel)

Author:
Tokihiko Okada; Tomoki Honryo; Masato Kawahara; Ichita Takahashi; Kou Murayama; Yasunori Ishibashi
Source:
Aquaculture research 2021 v.52 no.3 pp. 1282-1290
ISSN:
1355-557X
Subject:
Thunnus orientalis; aquaculture; body size; body weight; fingerlings; hatcheries; juveniles; research; survival rate; transportation
Abstract:
... High levels of mortality occur in the fingerling production of juvenile Pacific bluefin tuna (PBF, Thunnus orientalis), especially just after transportation from land‐based tanks to sea cages. The survival rate drastically declines within 3 days after transportation. To improve aquaculture efficiency, this problem needs to be resolved. We focused on the body size of juvenile PBF. We conducted two ...
DOI:
10.1111/are.14986

10. Archival tagging reveals swimming depth and ambient and peritoneal cavity temperature in age-0 Pacific bluefin tuna, Thunnus orientalis, off the southern coast of Japan

Author:
Seishiro Furukawa; Ko Fujioka; Hiromu Fukuda; Nobuaki Suzuki; Yaoki Tei; Seiji Ohshimo
Source:
Environmental biology of fishes 2017 v.100 no.1 pp. 35-48
ISSN:
0378-1909
Subject:
Thunnus orientalis; ambient temperature; coasts; correlation; developmental stages; lighting; predator avoidance; probability; spatial distribution; swimming; time series analysis; water temperature; East China Sea; Japan
Abstract:
... Although archival tags have been deployed in Thunnus since the early 1990s, few studies have placed such loggers on the small-size growth stage. In this study, Pacific bluefin tuna (PBT, Thunnus orientalis) 20–26.5 cm in fork length (FL) were fitted with archival tags and released off the southern coastal area of Japan from July to August in 2012, 2013, and 2014. Time-series data on swimming depth ...
DOI:
10.1007/s10641-016-0552-3

11. Artificial lighting prevents high night-time mortality of juvenile Pacific bluefin tuna, Thunnus orientalis, caused by poor scotopic vision

Author:
Ishibashi, Yasunori; Honryo, Tomoki; Saida, Kazuki; Hagiwara, Akihiko; Miyashita, Shigeru; Sawada, Yoshifumi; Okada, Tokihiko; Kurata, Michio
Source:
Aquaculture 2009 v.293 no.3-4 pp. 157-163
ISSN:
0044-8486
Subject:
Thunnus orientalis; tuna; marine fish; fish larvae; vision; mortality; lighting; fish culture; mariculture; Seriola dumerili; Takifugu rubripes; Pagrus major
Abstract:
... High mortality following transfer of early juvenile Pacific bluefin tuna (PBT) aged around 30 days post hatching (about 5 cm total length) from hatchery tanks to sea net cage, particularly during the first few days, is a major problem inhibiting development of large-scale culture operations. Survival rate of the fish after stocking from land tank to a small sea cage was dropped to about 50% or les ...
DOI:
10.1016/j.aquaculture.2009.04.029

12. Best practices for providing scientific recommendations in regional fisheries management organizations: Lessons from bluefin tunas

Author:
Shuya Nakatsuka
Source:
Fisheries research 2017 v.195 pp. 194-201
ISSN:
0165-7836
Subject:
Thunnus orientalis; fisheries; fisheries management; international organizations; tuna
Abstract:
... Bluefin tunas are iconic trans-ocean species; both their management and their science attract much attention. While outside input to the management of these species can advance international fisheries discussions, misleading criticism of management process can confuse already complex discussions. The focus lately has been on Pacific bluefin tuna (Thunnus orientalis, PBF) as stocks of the other two ...
DOI:
10.1016/j.fishres.2017.07.019

13. Biochemical Characterization and Comparison of Pancreatic Lipases from the Pacific Bluefin Tuna, Thunnus orientalis; Totoaba, Totoaba macdonaldi; and Striped Bass, Morone saxatilis

Author:
Servando Rueda‐López; Emmanuel Martínez‐Montaño; María Teresa Viana
Source:
Journal of the World Aquaculture Society 2017 v.48 no.1 pp. 156-165
ISSN:
0893-8849
Subject:
Morone saxatilis; Thunnus orientalis; Totoaba macdonaldi; additives; bile; bile salts; calcium; carboxylic ester hydrolases; emulsifiers; feed formulation; fish; ionic strength; lipolysis; pH; sodium chloride; temperature
Abstract:
... Lipolytic activity from pancreatic crude extracts from the Pacific bluefin tuna (PBT), Thunnus orientalis; totoaba, Totoaba macdonaldi; and striped bass, Morone saxatilis, were biochemically characterized to detect possible differences in the digestive capacity of each fish. The maximum activity was at temperatures ranging from 35 to 45 C and at pH 8.0; the activity decreased significantly at a pH ...
DOI:
10.1111/jwas.12372

14. Bioenergetics of captive Pacific bluefin tuna (Thunnus orientalis)

Author:
Ethan E. Estess; Daniel M. Coffey; Tamaki Shimose; Andrew C. Seitz; Luis Rodriguez; Alex Norton; Barbara Block; Charles Farwell
Source:
Aquaculture 2014 v.434 pp. 137-144
ISSN:
0044-8486
Subject:
Thunnus orientalis; biomass; diet; energy content; energy metabolism; equations; fiberglass; food conversion; gonads; morphometry; sardines; squid; tanks; thermic effect of food; tuna; wastes
Abstract:
... Tuna bioenergetics can be described by the following relationship: the energy available for growth is equal to the food energy minus all metabolic costs. These costs include routine metabolic rate, specific dynamic action, increased activity level, eliminated waste, and gonadal development. Captive populations of Pacific bluefin tuna (Thunnus orientalis) were held at ~20°C in fiberglass tanks and ...
DOI:
10.1016/j.aquaculture.2014.08.002

15. Blood chemistry of Pacific bluefin tuna (Thunnus orientalis) juveniles showing abnormal swimming behavior

Author:
Tomoki Honryo; Tokihiko Okada; Michio Kurata; Yasunori Ishibashi; Yasuo Agawa; Yoshifumi Sawada
Source:
Aquaculture 2019 v.506 pp. 355-358
ISSN:
0044-8486
Subject:
Thunnus orientalis; alkalosis; blood; blood chemistry; chemical analysis; death; excretion; hyperkalemia; juveniles; mortality; protons; swimming; tuna; ventilators
Abstract:
... We conducted a chemical analysis of the blood of juvenile Pacific bluefin tuna (PBF; Thunnus orientalis) showing abnormal swimming (AS) behavior, such as irregular and/or frantic patterns, and compared them to normally-swimming (NS) fish in order to elucidate causes of death in aquaculture-reared tuna. This study found three abnormal characteristics in the blood chemistries of AS specimens; 1) hyp ...
DOI:
10.1016/j.aquaculture.2019.03.050

16. Cardicola opisthorchis n. sp. (Trematoda: Aporocotylidae) from the Pacific bluefin tuna, Thunnus orientalis (Temminck & Schlegel, 1844), cultured in Japan

Author:
K. Ogawa; K. Ishimaru; S. Shirakashi; I. Takami; D. Grabner
Source:
Parasitology international 2011 v.60 no.3 pp. 307-312
ISSN:
1383-5769
Subject:
Cardicola; Thunnus orientalis; Thunnus thynnus; animal ovaries; blood; body length; cecum; flukes; geographical distribution; internal transcribed spacers; new species; parasitology; phylogeny; ribosomal DNA; ribosomal RNA; testes; Japan; Mexico; Spain
Abstract:
... A new aporocotylid blood fluke is described, based on specimens from the ventricle of the Pacific bluefin tuna, Thunnus orientalis (Temminck et Schlegel), cultured in Wakayama and Nagasaki Prefectures, Japan. The new species is morphologically similar to the members of the genus Cardicola Short, 1953, but shows distinct differences in the body form, location of the testis and the orientation of th ...
DOI:
10.1016/j.parint.2011.05.002

17. Causes of heavy mortality of hatchery-reared Pacific bluefin tuna Thunnus orientalis juveniles in sea cages

Author:
Kentaro Higuchi; Yosuke Tanaka; Takeshi Eba; Akefumi Nishi; Kazunori Kumon; Hideki Nikaido; Satoshi Shiozawa
Source:
Aquaculture 2014 v.424-425 pp. 140-145
ISSN:
0044-8486
Subject:
Thunnus orientalis; cages; juveniles; mortality; rearing; spine (bones); tanks
Abstract:
... Heavy mortalities of hatchery-reared Pacific bluefin tuna (PBT) juveniles frequently occur after being transferred from indoor tanks into sea cages. However, the causes of this short-term mortality such as during the initial month after transfer are still unclear. In the present study, the causes of the heavy mortality of juvenile PBT approximately 50mm in total length during the initial month aft ...
DOI:
10.1016/j.aquaculture.2013.12.045

18. Changes in myoglobin content and proximate compositions of the dorsal ordinary muscles of full-cycle cultured Pacific bluefin tuna Thunnus orientalis (Temminck et Schlegel) with body size

Author:
Tsukamasa, Yasuyuki; Nakamura, Yoshi-Nori; Ando, Masashi; Seoka, Manabu; Kawasaki, Ken-Ichi
Source:
Aquaculture research 2007 v.38 no.2 pp. 201-205
ISSN:
1355-557X
Subject:
Thunnus orientalis; body length; body weight; lipid content; muscles; myoglobin; protein content; proximate composition; tuna
Abstract:
... We investigated the changes in myoglobin (Mb) content and proximate compositions of the cephalad parts of the dorsal ordinary muscles (Ce-DOM) of full-cycle cultured (FC) Pacific bluefin tuna [body length: 42.6-115.4 cm, body weight (BW): 1.7-38.4 kg, killed from July 2004 to October 2005]. The Mb content of Ce-DOM increased (P<0.01) until a BW of 7.0 kg was reached. However, the Mb content of Ce- ...
DOI:
10.1111/j.1365-2109.2007.01656.x

19. Changes of proximate and fatty acid compositions of the dorsal and ventral ordinary muscles of the full-cycle cultured Pacific bluefin tuna Thunnus orientalis with the growth

Author:
Nakamura, Y.N.; Ando, M.; Seoka, M.; Kawasaki, K.; Tsukamasa, Y.
Source:
Food chemistry 2007 v.103 no.1 pp. 234-241
ISSN:
0308-8146
Subject:
fish culture; Thunnus orientalis; fatty acid composition; muscles; seafoods; proximate composition; fish; fish feeding
Abstract:
... Using the full-cycle cultured (FC) Pacific bluefin tuna, Thunnus orientalis [body weights: 13.1 ± 4.5 (FC1; April in 2004), 20.2 ± 1.8 (FC2; July in 2004), 28.5 ± 6.3 (FC3; November in 2004), 27.0 ± 3.3 (FC4; February in 2005) and 33.5 ± 4.7 kg (FC5; May in 2005), n = 3, respectively] and wild bluefin tuna [33.3 ± 1.5kg (June in 2005), n = 3], proximate and fatty acid compositions of the cephalal ...
DOI:
10.1016/j.foodchem.2006.07.064

20. Changes of proximate compositions and myoglobin content in the dorsal ordinary muscles of the cultured Pacific bluefin tuna Thunnus orientalis with growth

Author:
NAKAMURA, Yoshi-Nori; ANDO, Masashi; SEOKA, Manabu; KAWASAKI, Ken-ichi; TSUKAMASA, Yasuyuki
Source:
Fisheries science 2007 v.73 no.5 pp. 1155-1159
ISSN:
0919-9268
Subject:
Thunnus orientalis; body length; body weight; color; exercise; meat; muscles; myoglobin; overfeeding; tuna
Abstract:
... Using the dorsal ordinary muscle (DOM) of cultured Pacific bluefin tuna (body length [BL]: 47.5-81.8 cm, body weight [BW]: 2.1-13.5 kg, n = 15), the changes of proximate compositions and myoglobin (Mb) content with growth were investigated. There was a positive correlation (r = 0.9832, P < 0.05) of BL and BW in cultured tuna. The protein contents of the DOM of cultured tuna decreased (P < 0.05) an ...
DOI:
10.1111/j.1444-2906.2007.01447.x

21. Characterization and ontogenetic development of digestive enzymes in Pacific bluefin tuna Thunnus orientalis larvae

Author:
Koji Murashita; Hiroyuki Matsunari; Kazunori Kumon; Yosuke Tanaka; Satoshi Shiozawa; Hirofumi Furuita; Hiromi Oku; Takeshi Yamamoto
Source:
Fish physiology and biochemistry 2014 v.40 no.6 pp. 1741-1755
ISSN:
0920-1742
Subject:
Thunnus orientalis; Thunnus thynnus; adults; bile salts; cecum; chymotrypsin; enzyme activity; fish; gene expression; hatching; larvae; ontogeny; pH; pepsin; temperature profiles; trypsin
Abstract:
... The major digestive enzymes in Pacific bluefin tuna Thunnus orientalis larvae were characterized, and the physiological characteristics of the enzymes during early ontogeny were clarified using biochemical and molecular approaches. The maximum activity of trypsin (Try), chymotrypsin (Ct) and amylase (Amy) was observed at pH 6–11, 8–11 and 6–9, respectively. Maximum activity of Try, Ct and Amy occu ...
DOI:
10.1007/s10695-014-9964-1
PubMed:
25055726

22. Characterization of digestive physiology in Pacific bluefin tuna Thunnus orientalis juveniles fed a raw fish feed and a commercial diet

Author:
Koji Murashita; Hiroshi Hashimoto; Toshinori Takashi; Takeshi Eba; Kazunori Kumon; Hiroyuki Matsunari; Satoshi Soma; Hiromi Oku; Hirofumi Furuita; Hazuki Yoshinaga; Takeshi Yamamoto
Source:
Aquaculture 2021 v.538 pp. 736562
ISSN:
0044-8486
Subject:
Thunnus orientalis; adults; amylases; aquaculture; artificial diets; carboxylic ester hydrolases; cecum; cholecystokinin; chymotrypsin; digestion; fish feeds; gene expression; hypertrophy; juveniles; larvae; pH; pepsin; raw fish; secretion; stomach; trypsin; tuna
Abstract:
... This study examined the biochemical characteristics of key digestive enzymes in artificially produced Pacific bluefin tuna juveniles and revealed details of the digestive physiology of juveniles fed a commercial pellet diet and raw fish over long-term (225 days) and short-term (response to feeding) periods. pH and thermal profiles of key digestive enzymes of pepsin, trypsin, chymotrypsin, lipase a ...
DOI:
10.1016/j.aquaculture.2021.736562

23. Comparative Characterization of Enzymatic Digestion from Fish and Soybean Meal from Simulated Digestive Process of Pacific Bluefin Tuna, Thunnus orientalis

Author:
Ariana I. Román‐Gavilanes; Emmanuel Martínez‐Montaño; María Teresa Viana
Source:
Journal of the World Aquaculture Society 2015 v.46 no.4 pp. 409-420
ISSN:
0893-8849
Subject:
Thunnus orientalis; aquaculture feeds; chymotrypsin; crude protein; digestion; fish; fish meal; hydrolysis; in vitro digestibility; in vitro digestion; pepsin; peptides; protein sources; proteolysis; soybean meal; swine; trypsin
Abstract:
... The digestive process of the Pacific bluefin tuna (PBT), Thunnus orientalis, was simulated through two phases of in vitro digestion: acidic digestion with porcine pepsin, followed by alkaline digestion with pancreatic crude extract (PCE) obtained from the PBT to hydrolyze fish meal (FM) and soybean meal (SBM) as protein substrates. The crude protein from FM resulted in a lower degree of hydrolysis ...
DOI:
10.1111/jwas.12204

24. Comparison of lines shows selection response in kingfish (Seriola lalandi)

Author:
Wayne Knibb; Adam Miller; Jane Quinn; Trent D'Antignana; Nguyen Hong Nguyen
Source:
Aquaculture 2016 v.452 pp. 318-325
ISSN:
0044-8486
Subject:
DNA; Epinephelus; Seriola lalandi; Thunnus orientalis; adults; aquaculture; breeding stock; breeding value; cages; condition factor; covariance; dams (mothers); domestication; fecundity; genetic improvement; genetic variation; genotyping; grouper; larvae; line differences; microsatellite repeats; pedigree; progeny; rearing; selection methods; selection response; sires; tanks
Abstract:
... Recently, aquaculture and captive breeding have commenced for a raft of large fish species, including bluefin tuna (Thunnus orientalis), kingfish (Seriola lalandi) and giant grouper (Epinephelus lanceolatus). With captive breeding, there is often interest to conduct selection and genetic improvement, but these large species present many and substantial challenges to selective breeding. Indeed ther ...
DOI:
10.1016/j.aquaculture.2015.11.015

25. Complete mitochondrial genome of the yellowfin tuna (Thunnus albacares) and the blackfin tuna (Thunnus atlanticus): notes on mtDNA introgression and paraphyly on tunas

Author:
N. J. Bayona-Vásquez; T. C. Glenn; M. Uribe-Alcocer; C. Pecoraro; P. Díaz-Jaimes
Source:
Conservation genetics resources 2018 v.10 no.4 pp. 697-699
ISSN:
1877-7252
Subject:
Thunnus alalunga; Thunnus albacares; Thunnus atlanticus; Thunnus obesus; Thunnus orientalis; introgression; loci; mitochondrial DNA; mitochondrial genome; paraphyly; trees; tuna
Abstract:
... The genus Thunnus is composed of eight species, which are separated into two groups, the temperate subgenus Thunnus (bluefin tunas group) and the tropical subgenus Neothunnus (yellowfin tunas group). We obtained the mitochondrial genome for two species from the yellowfin group, Thunnus albacares and Thunnus atlanticus, and compared to those from extant Thunnus species to reconstruct the mtDNA phyl ...
DOI:
10.1007/s12686-017-0904-0

26. Completion of the Pacific bluefin tuna Thunnus orientalis (Temminck et Schlegel) life cycle

Author:
Sawada, Y.; Okada, T.; Miyashita, S.; Murata, O.; Kumai, H.
Source:
Aquaculture research 2005 v.36 no.5 pp. 413-421
ISSN:
1355-557X
Subject:
fish culture; Thunnus orientalis; mariculture; tuna; life cycle (organisms)
Abstract:
... Tuna aquaculture is currently dependent on the wild capture of juveniles for production. The development of hatchery technology for bluefin and other tunas would be a major step forward in improving sustainability of their aquaculture. The present study overviews the technology in the life cycle completion of the Pacific bluefin tuna (PBT) Thunnus orientalis (Temminck et Schlegel) under aquacultur ...
DOI:
10.1111/j.1365-2109.2005.01222.x

27. Critical swimming speed and maximum sustainable swimming speed of juvenile Pacific bluefin tuna, Thunnus orientalis

Author:
F. de la S. Sabate; Y. Nakagawa; T. Nasu; W. Sakamoto; S. Miyashita
Source:
Aquaculture international 2013 v.21 no.1 pp. 177-181
ISSN:
0967-6120
Subject:
Thunnus orientalis; water currents; rearing; pelleted feeds; swimming; hatching; design for environment; fish; tanks; mortality; juveniles
Abstract:
... Tank wall collision is one of the major causes of mortality during the early-stage rearing of Pacific bluefin tuna, Thunnus orientalis (PBT). Therefore, to design a rearing environment that meets the needs of juvenile PBT, it is important to gather information about their swimming capabilities. We conducted experiments to examine the relative critical swimming speed (RCSS) and maximum sustainable ...
DOI:
10.1007/s10499-012-9543-3

28. Detection of Kudoa hexapunctata and Kudoa neothunni from retail raw tuna in Japan using a novel duplex polymerase chain reaction

Author:
Sakura Arai; Tomoya Yoshinari; Jun Terajima; Yukiko Hara-Kudo; Takahiro Ohnishi
Source:
Parasitology international 2020 v.75 pp. 102048
ISSN:
1383-5769
Subject:
Kudoa; Thunnus orientalis; detection limit; epidemiological studies; etiological agents; foodborne illness; juveniles; nucleotide sequences; parasites; polymerase chain reaction; ribosomal RNA; tuna; Japan
Abstract:
... Kudoa hexapunctata was taxonomically separated from Kudoa neothunni, but their main host is tuna. K. hexapunctata has been identified as causative agent of foodborne diseases associated with the ingestion of raw Pacific bluefin tuna (PBT) in Japan, but K. neothunni has not. Therefore, it is clinically and epidemiologically important to detect and distinguish these two species. In the present study ...
DOI:
10.1016/j.parint.2019.102048

29. Detection of bluefin tuna blood flukes (Cardicola spp.) from wild juvenile Pacific bluefin tuna Thunnus orientalis caught for aquaculture

Author:
Yukitaka Sugihara; Toshiyuki Yamada; Toshio Ichimaru; Kazuki Matsukura; Kinya Kanai
Source:
Aquaculture 2016 v.452 pp. 9-11
ISSN:
0044-8486
Subject:
Cardicola; Thunnus orientalis; aquaculture; blood flukes; farms; islands; juveniles; mortality; tuna; Japan
Abstract:
... Blood fluke infection is one of the main causes of mortality in cultured juvenile Pacific bluefin tuna Thunnus orientalis (PBT) in Japan. We investigated 532 wild juvenile PBT of four different fish groups caught for tuna culture seed stock from off the Goto Islands, Nagasaki, Japan between 2011 and 2014, to determine whether they were infected with blood flukes. We detected the blood flukes, Card ...
DOI:
10.1016/j.aquaculture.2015.10.021

30. Detection rate of diarrhoea-causing Kudoa hexapunctata in Pacific bluefin tuna Thunnus orientalis from Japanese waters

Author:
Jun Suzuki; Rie Murata; Hiroshi Yokoyama; Kenji Sadamasu; Akemi Kai
Source:
International journal of food microbiology 2015 v.194 pp. 1-6
ISSN:
0168-1605
Subject:
Kudoa; Paralichthys olivaceus; Seriola dumerili; Thunnus albacares; Thunnus orientalis; adults; diarrhea; electrical resistance; foodborne illness; human cell lines; ingestion; juveniles; market analysis; parasites; permeability; poisoning; ribosomal DNA; spores; surveys; toxicity; tuna; vomiting; wholesale marketing; Japan
Abstract:
... Diffuse outbreaks of food poisoning with unknown aetiologies leading to diarrhoea and vomiting within a short time after ingesting flatfish (Paralichthys olivaceus), tuna (Thunnus spp.), or amberjack (Seriola dumerili) have occurred nationwide in Japan, including the Tokyo metropolitan area. In this study, we surveyed the detection rates of kudoid parasites in 12 tuna samples that caused clinical ...
DOI:
10.1016/j.ijfoodmicro.2014.11.001

31. Developing 23 new polymorphic microsatellite markers and simulating parentage assignment in the Pacific bluefin tuna, Thunnus orientalis

Author:
MORISHIMA, KAGAYAKI; YAMAMOTO, HIROSHI; SAWADA, YOSHIFUMI; MIYASHITA, SHIGERU; KATO, KEITARO
Source:
Molecular ecology resources 2009 v.9 no.3 pp. 790-792
ISSN:
1755-0998
Subject:
Thunnus orientalis; gene frequency; genetic markers; loci; null alleles; parentage
Abstract:
... Twenty-three new polymorphic microsatellite markers were isolated in the Pacific bluefin tuna, Thunnus orientalis. Each locus comprised three to 34 alleles. The expected and observed heterozygosities ranged between 0.46 and 0.96 and between 0.44 and 0.97, respectively. The Kto9, Kto11, and Kto42 markers demonstrated significant deviation from Hardy-Weinberg equilibrium; high null allele frequencie ...
DOI:
10.1111/j.1755-0998.2008.02144.x
PubMed:
21564744

32. Development of a method for experimental infection of Pacific bluefin tuna with red seabream iridoviral disease

Author:
Yuta Matsuura; Toyohiro Nishioka; Jun Satoh; Yoshiko Shimahara; Tomomasa Matsuyama; Tomokazu Takano; Ikunari Kiryu; Yasuhiko Kawato; Sachiko Terashima; Shukei Masuma; Chihaya Nakayasu
Source:
Aquaculture 2021 v.539 pp. 736627
ISSN:
0044-8486
Subject:
Iridovirus; Pagrus major; Seriola dumerili; Thunnus orientalis; fish; fish culture; genome; histopathology; juveniles; markets; transportation; viruses
Abstract:
... The market for Pacific bluefin tuna (Thunnus orientalis) is expanding as global consumption increases. Meeting this demand has led to overfishing and consequent depletion of wild populations, resulting in a focus on aquaculture as an alternative to fishing. However, under the crowded conditions typical of tuna aquaculture settings, infectious diseases are a common problem associated with considera ...
DOI:
10.1016/j.aquaculture.2021.736627

33. Development of a simple method for sperm cryopreservation of Scombridae fishes in outdoor environments

Author:
Wataru Kawamura; Ryosuke Yazawa; Reoto Tani; Yutaka Takeuchi; Tetsuro Morita; Hiroyuki Yoshikawa; Goro Yoshizaki
Source:
Aquaculture research 2020 v.51 no.8 pp. 3376-3383
ISSN:
1355-557X
Subject:
Auxis; Katsuwonus pelamis; Scomber australasicus; Scomber japonicus; Thunnus orientalis; cryopreservation; cryoprotectants; dimethyl sulfoxide; fetal bovine serum; fishing boats; spermatozoa; trehalose; tuna
Abstract:
... We developed a simple dry shipper method for cryopreserving the sperm of Scombridae fish in outdoor environments. First, we undertook a preliminary study to optimize the sperm cryopreservation conditions using bullet tuna, Auxis rochei (Risso, 1810) sperm. We found that the optimum cryomedium contained 90% foetal bovine serum (FBS) or 300 mM trehalose as an external cryoprotectant and 10% dimethyl ...
DOI:
10.1111/are.14673

34. Development of cryopreservation procedures for semen of Pacific bluefin tuna Thunnus orientalis

Author:
Gwo, H.H.; Weng, T.S.; Fan, L.S.; Lee, Y.H.
Source:
Aquaculture 2005 v.249 no.1-4 pp. 205-211
ISSN:
0044-8486
Subject:
fish culture; semen extenders; marine fish; semen; freezing; Thunnus orientalis; methanol; cryopreservation; glucose; dimethyl sulfoxide; glycerol; mariculture; sperm motility; cryoprotectants; sodium chloride; spermatozoa
Abstract:
... A method for cryopreservation of Pacific bluefin tuna semen, on board ships, was developed in the current study. Semen was collected by squeezing the abdomen of long-line fished tuna. The effect of following variables was tested on post-thaw sperm cell motility: two extender solutions (1% NaCl or 1% glucose), three cryoprotectant compounds (glycerol, DMSO and methanol) at three different concentra ...

35. Development of microparticulate diets with special reference to Pacific bluefin tuna, abalone, and Japanese spiny lobster: a review

Author:
Toshio Takeuchi; Yutaka Haga
Source:
Fisheries science 2015 v.81 no.4 pp. 591-600
ISSN:
0919-9268
Subject:
Artemia; Panulirus japonicus; Thunnus orientalis; abalone; fish larvae; ingredients; juveniles; marine fish; nutrient requirements; processing technology; seawater; special diets
Abstract:
... Despite considerable progress in understanding the nutritional requirements of marine fish larvae and processing technology of dietary ingredients, microparticulate diets, which can completely replace live food such as rotifers and Artemia, remain to be developed. Recent reviews have generally covered a wide range of aspects of fish larvae nutrition and the formulation of microparticulate diets as ...
DOI:
10.1007/s12562-015-0883-6

36. Development of phototaxis in the early life stages of Pacific bluefin tuna Thunnus orientalis

Author:
Yoshiaki Ina; Yoshitaka Sakakura; Yosuke Tanaka; Toshiyuki Yamada; Kazunori Kumon; Takeshi Eba; Hiroshi Hashimoto; Junpei Konishi; Toshinori Takashi; Koichiro Gen
Source:
Fisheries science 2017 v.83 no.4 pp. 537-542
ISSN:
0919-9268
Subject:
Thunnus orientalis; chi-square distribution; eyes; fish; hatching; juveniles; larvae; lighting; phototaxis; postlarvae; tanks
Abstract:
... We investigated the development of phototaxis in larval and early juvenile stages of Pacific bluefin tuna Thunnus orientalis to detail behavior development in relation to light. We observed the distribution of Pacific bluefin tuna in an illumination gradient tank from 1 to 26 days after hatching (DAH). Two long rectangular tanks (100 × 10 × 10 cm) were used for experiments; each tank was divided i ...
DOI:
10.1007/s12562-017-1087-z

37. Development of predictive growth models of Aeromonas hydrophila on raw tuna Thunnus orientalis as a function of storage temperatures

Author:
Ji Yoon Kim; Eun Bi Jeon; Min Gyu Song; Sung Hee Park; Shin Young Park
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.156 pp. 113052
ISSN:
0023-6438
Subject:
Aeromonas hydrophila; Thunnus orientalis; cold; prediction; raw fish; regression analysis; specific growth rate; storage temperature; tuna
Abstract:
... This study developed predictive growth models for Aeromonas hydrophila on raw tuna as a function of storage temperatures (2–15 °C). At these storage temperatures, the primary models fit well (R²; 0.97–0.98) with the Baranyi model to obtain lag time (LT) and specific growth rate (SGR). As the temperature increased, A. hydrophila growth increased. However, at 2 and 5 °C, no growth of A. hydrophila w ...
DOI:
10.1016/j.lwt.2021.113052

38. Development of visual cells in the Pacific bluefin tuna Thunnus orientalis

Author:
R. Matsuura; Y. Sawada; Y. Ishibashi
Source:
Fish physiology and biochemistry 2010 v.36 no.3 pp. 391-402
ISSN:
0920-1742
Subject:
Thunnus orientalis; hatching; juveniles; larvae; metamorphosis; monoclonal antibodies; opsin; photoreceptors; postlarvae; retina
Abstract:
... The development of rod and cone photoreceptor cells was investigated in the retinas of Pacific bluefin tuna larvae and juveniles, using RET-P1 monoclonal antibody labeling to identify photoreceptors. At 60 h after hatching, which was about when feeding began, opsin (presumably green opsin (Rh2)) was expressed in the outer segments of cone cells. At 15 days after hatching (dah), although many label ...
DOI:
10.1007/s10695-009-9306-x
PubMed:
19288257

39. Developmental changes in behavioral and retinomotor responses of Pacific bluefin tuna on exposure to sudden changes in illumination

Author:
Fukuda, Hiromu; Torisawa, Shinsuke; Sawada, Yoshifumi; Takagi, Tsutomu
Source:
Aquaculture 2010 v.305 no.1-4 pp. 73-78
ISSN:
0044-8486
Subject:
vision; Thunnus orientalis; animal behavior; lighting; young animals
Abstract:
... Schooling behavior traits during the process of retinomotor response from scotopic to photopic vision were examined in cultivated juvenile Pacific bluefin tuna (PBT) at 3 different ages. After a sudden change in illumination from darkness to 300lx, retinal adaptations changed from scotopic to photopic vision. Retinomotor and schooling indices showed strong agreement, with juvenile PBTs forming pol ...
DOI:
10.1016/j.aquaculture.2010.04.014

40. Developmental stages of fish blood flukes, Cardicola forsteri and Cardicola opisthorchis (Trematoda: Aporocotylidae), in their polychaete intermediate hosts collected at Pacific bluefin tuna culture sites in Japan

Author:
Kazuo Ogawa; Sho Shirakashi; Kazuki Tani; Sang Phil Shin; Katsuya Ishimaru; Tomoki Honryo; Yukitaka Sugihara; Hiro'omi Uchida
Source:
Parasitology international 2017 v.66 no.1 pp. 972-977
ISSN:
1383-5769
Subject:
Cardicola; DNA primers; Polychaeta; Thunnus orientalis; blood flukes; cages; cercariae; farming systems; industry; intermediate hosts; marine fish; phylogeny; polymerase chain reaction; ropes; tuna; Japan
Abstract:
... Farming of Pacific bluefin tuna (PBT), Thunnus orientalis, is a rapidly growing industry in Japan. Aporocotylid blood flukes of the genus Cardicola comprising C. orientalis, C. opisthorchis and C. forsteri are parasites of economic importance for PBT farming. Recently, terebellid polychaetes have been identified as the intermediate hosts for all these parasites. We collected infected polychaetes, ...
DOI:
10.1016/j.parint.2016.10.016

41. Diel and ontogenetic body density change in Pacific bluefin tuna, Thunnus orientalis (Temminck and Schlegel), larvae

Author:
Takashi, Toshinori; Kohno, Hirotoshi; Sakamoto, Wataru; Miyashita, Shigeru; Murata, Osamu; Sawada, Yoshifumi
Source:
Aquaculture research 2006 v.37 no.12 pp. 1172-1179
ISSN:
1355-557X
Subject:
Thunnus orientalis; diurnal variation; hatching; larvae; mortality; rearing; surface water; swim bladder; swimming; tanks
Abstract:
... Diel and ontogenetic changes in larval body density related to swim bladder volume were investigated in Pacific bluefin tuna, Thunnus orientalis, to determine the causality of larval mortality - adhesion to the water surface and contact with the tank bottom during seedling production. The density of larvae with deflated swim bladders increased with total length and days post hatch. Diel density ch ...
DOI:
10.1111/j.1365-2109.2006.01544.x

42. Dietary protein and lipid requirements for the Pacific bluefin tuna Thunnus orientalis juvenile

Author:
Biswas, Biswajit K.; Ji, Seung-Cheol; Biswas, Amal K.; Seoka, Manabu; Kim, Yang-Su; Kawasaki, Ken-ichi; Takii, Kenji
Source:
Aquaculture 2009 v.288 no.1-2 pp. 114-119
ISSN:
0044-8486
Subject:
Thunnus orientalis; tuna; animal growth; fatty acid composition; mortality; fish feeding; feeds; feed composition; dietary protein; dietary fat; fish meal; fish oils; fish culture
Abstract:
... The present trial was conducted to determine the optimum proportion of dietary protein and lipid for juvenile Pacific bluefin tuna (PBT), a carnivorous fish possessing very high culture potentials in the Pacific region. Five test diets, D1-D5, were prepared with varying proportion of protein/lipid 72.8/9.2, 66.8/14.8, 61.9/17.9, 57.2/21.9, 53.3/27.0, respectively, using defatted enzyme treated fis ...
DOI:
10.1016/j.aquaculture.2008.11.019

43. Dietary supplementation of salmon roe phospholipid enhances the growth and survival of Pacific bluefin tuna Thunnus orientalis larvae and juveniles

Author:
Seoka, Manabu; Kurata, Michio; Tamagawa, Rakuto; Biswas, Amal Kumar; Biswas, Biswajit Kumar; Seok Kian Yong, Annita; Kim, Yang-Su; Ji, Seung-Chul; Takii, Kenji; Kumai, Hidemi
Source:
Aquaculture 2008 v.275 no.1-4 pp. 225-234
ISSN:
0044-8486
Subject:
fish culture; marine fish; animal growth; Thunnus orientalis; docosahexaenoic acid; fatty acid composition; fish roe; tuna; Oncorhynchus gorbuscha; triacylglycerols; fish larvae; salmon; feed composition; feed supplements; fish feeding; mortality; phospholipids
Abstract:
... Previous studies have shown that feeding enriched Artemia induces growth failure in Pacific bluefin tuna (PBT) Thunnus orientalis larvae. This growth failure cannot be improved even if the docosahexaenoic acid (DHA) content in enriched Artemia is elevated to the same level as that in yolk-sac larvae, an ideal live feed for PBT larviculture. This might be caused by the differences in the DHA in the ...
DOI:
10.1016/j.aquaculture.2007.12.027

44. Dietary utility of enzyme-treated fish meal for juvenile Pacific bluefin tuna Thunnus orientalis

Author:
JI, Seung-Cheol; TAKAOKA, Osamu; BISWAS, Amal K.; SEOKA, Manabu; OZAKI, Keita; KOHBARA, Jun; UKAWA, Masaharu; SHIMENO, Sadao; HOSOKAWA, Hidetsuyo; TAKII, Kenji
Source:
Fisheries science 2008 v.74 no.1 pp. 54-61
ISSN:
0919-9268
Subject:
Ammodytes; Thunnus orientalis; artificial diets; bonito; cholesterol; dietary protein; fatty acid composition; feed conversion; fish meal; growth performance; hepatosomatic index; highly unsaturated fatty acids; juveniles; lipid content; oils; phospholipids; specific growth rate; transferases; tuna
Abstract:
... In order to develop an artificial diet, the dietary utility of enzyme-treated fish meal was investigated for juvenile Pacific bluefin tuna Thunnus orientalis (PBT). Diets containing each 63% of Chilean fish meal (FM), enzyme-treated Chilean fish meal (EC) and enzyme-treated Peruvian fish meal (EP), with 10% bonito oil and raw sand lance Ammodytes personatus (SL) were fed to juvenile tuna six times ...
DOI:
10.1111/j.1444-2906.2007.01475.x

45. Differences in larval growth of Pacific bluefin tuna (Thunnus orientalis) between two spawning areas, and an evaluation of the growth-dependent mortality hypothesis

Author:
Taiki Ishihara; Mikio Watai; Seiji Ohshimo; Osamu Abe
Source:
Environmental biology of fishes 2019 v.102 no.4 pp. 581-594
ISSN:
0378-1909
Subject:
Thunnus orientalis; chlorophyll; larvae; larval development; mortality; ontogeny; spawning; surface water temperature; swimming; Sea of Japan
Abstract:
... The larval growth of Pacific bluefin tuna (Thunnus orientalis) was compared between two main spawning areas, the Sea of Japan (SOJ) and the western North Pacific (WNP). Growth trajectories indicate that the larval survival depends on their growth in both areas. Until the flexion stage, larvae of the SOJ showed lower growth than those of the WNP, but after the post-flexion stage, there was no signi ...
DOI:
10.1007/s10641-019-00855-w

46. Discovery of intermediate hosts for two species of blood flukes Cardicola orientalis and Cardicola forsteri (Trematoda: Aporocotylidae) infecting Pacific bluefin tuna in Japan

Author:
Sho Shirakashi; Kazuki Tani; Katsuya Ishimaru; Sang Phil Shin; Tomoki Honryo; Hiro’omi Uchida; Kazuo Ogawa
Source:
Parasitology international 2016 v.65 no.2 pp. 128-136
ISSN:
1383-5769
Subject:
Cardicola; Polychaeta; Thunnus orientalis; adults; blood flukes; cages; cercariae; farming systems; intermediate hosts; internal transcribed spacers; juveniles; pathogens; ribosomal DNA; ropes; tuna; Japan
Abstract:
... Fish blood flukes (Aporocotylidae) are important pathogens of farmed finfish around the world. Among them, Cardicola spp. infecting farmed tuna are considered to be serious threats to tuna farming and have received tremendous attention. We conducted periodical samplings at a tuna farming site in Japan between January and May, 2015 to determine the life cycle of Cardicola spp. We collected over 470 ...
DOI:
10.1016/j.parint.2015.11.003

47. Discrimination of eastward trans-Pacific migration of the Pacific bluefin tuna Thunnus orientalis through otolith δ13C and δ18O analyses

Author:
Masanori Kawazu; Atsushi Tawa; Taiki Ishihara; Yuki Uematsu; Saburo Sakai
Source:
Marine biology 2020 v.167 no.8 pp. 110
ISSN:
0025-3162
Subject:
Thunnus orientalis; carbon; diet; dissolved inorganic carbon; juveniles; migratory species; otoliths; oxygen; stable isotopes; tuna; water temperature; Pacific Ocean
Abstract:
... The Pacific bluefin tuna Thunnus orientalis is a highly migratory species, some tuna exhibiting a trans-Pacific migration between the Western Pacific Ocean (WPO) to the Eastern Pacific Ocean (EPO) at the juvenile stage. To detect a signature for the eastward trans-Pacific migration, we analyzed otolith stable isotope ratios of carbon (δ¹³Cₒₜₒ) and oxygen (δ¹⁸Oₒₜₒ) along the growth trajectory for 2 ...
DOI:
10.1007/s00227-020-03723-9

48. Distribution, growth and hatch date of juvenile Pacific bluefin tuna Thunnus orientalis in the coastal area of the sea of Japan

Author:
Yosuke Tanaka; Masahiko Mohri; Harumi Yamada
Source:
Fisheries science 2007 v.73 no.3 pp. 534-542
ISSN:
0919-9268
Subject:
Thunnus orientalis; coasts; juveniles; otoliths; surveys; water temperature; Sea of Japan
Abstract:
... Mid-water trawl surveys were conducted from late August to late September in 1999 and 2004 in order to investigate the distribution pattern, hatch date, and growth of juvenile Pacific bluefin tuna Thunnus orientalis in the Sea of Japan. Juveniles were collected at the stations where ambient water temperature (mean water temperature from surface to 30 m deep, WT₀₋₃₀) was 23.4-25.9°C, and most of th ...
DOI:
10.1111/j.1444-2906.2007.01365.x

49. Dynamic stochastic adaptive bioeconomic model of offshore bluefin tuna aquaculture

Author:
Shamshak, Gina Louise; Anderson, James L.
Source:
Aquaculture economics & management 2009 v.13 no.2 pp. 155-175
ISSN:
1365-7305
Subject:
fish farms; mariculture; fish culture; Thunnus orientalis; Thunnus thynnus; farmed fish; bioeconomic models; stochastic processes
DOI:
10.1080/13657300902885451

50. Early development of primordial germ cells in Pacific bluefin tuna Thunnus orientalis

Author:
Kentaro Higuchi; Rie Goto; Junpei Konishi; Yoshiaki Ina; Yukinori Kazeto; Koichiro Gen
Source:
Theriogenology 2019 v.131 pp. 106-112
ISSN:
0093-691X
Subject:
3' untranslated regions; Danio rerio; Thunnus orientalis; aquaculture; biotechnology; early development; eggs; embryogenesis; fluorescent proteins; genes; germ cells; gonads; hatching; histology; larvae; migratory behavior; somatic cells; transcription (genetics)
Abstract:
... Bluefin tuna is one of the most important aquaculture species in several countries; however, information regarding the primordial germ cell (PGC) development and migration in this species is scarce. This information is vital for application in reproductive biotechnology, for example, induced sterility through targeted cell ablation or PGC manipulation. Teleost PGC can be visualized by injecting an ...
DOI:
10.1016/j.theriogenology.2019.03.031

51. Effect of Artemia enrichment on the growth and survival of Pacific bluefin tuna Thunnus orientalis (Temminck & Schlegel) larvae

Author:
Biswas, Amal Kumar; Nozaki, Jun; Kurata, Michio; Takii, Kenji; Kumai, Hidemi; Seoka, Manabu
Source:
Aquaculture research 2006 v.37 no.16 pp. 1662-1670
ISSN:
1355-557X
Subject:
Artemia; Thunnus orientalis; choline; diet; docosahexaenoic acid; fish; foods; nauplii; oleic acid; survival rate
Abstract:
... This study was carried out to investigate the suitability of Artemia enriched with docosahexaenoic acid (DHA) and choline as live food on the growth and survival rate of the Pacific bluefin tuna (PBT; Thunnus orientalis) larvae. The PBT larvae were fed either Artemia enriched with oleic acid (Diet 1), DHA (Diet 2), DHA+choline 1.0 mg L⁻¹ (Diet 3) and DHA+choline 2.0 mg L⁻¹ (Diet 4) or striped knif ...
DOI:
10.1111/j.1365-2109.2006.01617.x

52. Effect of Illuminance Transition Rate on Survival of Juvenile Pacific Bluefin Tuna, Thunnus orientalis

Author:
Tomoki Honryo; Michio Kurata; Tokihiko Okada; Yoshifumi Sawada; Yasunori Ishibashi
Source:
Journal of the World Aquaculture Society 2014 v.45 no.5 pp. 523-531
ISSN:
0893-8849
Subject:
Thunnus orientalis; cortisol; glucose; juveniles; lamps; light intensity; rearing; solar radiation; survival rate; timers
Abstract:
... To investigate the reason for the high mortality of cultured juvenile Pacific bluefin tuna (PBT), especially during land‐based culture, we examined the effect of the rate of light‐intensity change during the dawn period. Juvenile PBT kept in a natural light environment (control) were compared with those exposed to an artificially slowed change in light intensity during the dawn period (test group) ...
DOI:
10.1111/jwas.12149

53. Effect of docosahexaenoic acid enrichment in Artemia on growth of Pacific bluefin tuna Thunnus orientalis larvae

Author:
Seoka, M.; Kurata, M.; Kumai, H.
Source:
Aquaculture 2007 v.270 no.1-4 pp. 193-199
ISSN:
0044-8486
Subject:
fish culture; marine fish; animal growth; Thunnus orientalis; dietary fat; docosahexaenoic acid; eicosapentaenoic acid; fatty acid composition; live feeds; Artemia; mariculture; tuna; fish larvae; feed composition; fish feeding
Abstract:
... Feeding enriched Artemia induces growth failure in Pacific bluefin tuna (PBT) Thunnus orientalis larvae; however, feeding of yolk-sac larvae of marine fish promotes larval growth. It is considered that this growth failure partly results from dietary docosahexaenoic acid (22:6n-3, DHA) deficiency. Therefore, we examined the effect of DHA contents in enriched Artemia on the growth of PBT larvae. Art ...
DOI:
10.1016/j.aquaculture.2007.06.016

54. Effect of environmental fluctuations on mortality of juvenile Pacific bluefin tuna, Thunnus orientalis, in closed life-cycle aquaculture

Author:
Yuichi Tsuda; Wataru Sakamoto; Shinji Yamamoto; Osamu Murata
Source:
Aquaculture 2012 v.330-333 no. pp. 142-147
ISSN:
0044-8486
Subject:
Thunnus orientalis; Thunnus thynnus; acclimation; aquaculture; body temperature; cages; environmental factors; environmental impact; fish; juveniles; light intensity; models; mortality; rearing; salinity; tanks; water temperature; Japan
Abstract:
... Although full-cycle aquaculture of Pacific bluefin tuna, Thunnus orientalis, has been established by Kinki University, Japan, most juvenile die after transfer to net cages offshore due to the stress associated with fluctuations in environmental conditions. We examined the effect of environmental conditions on mortality of juvenile using a generalized liner model (GLM). Juveniles were reared for mo ...
DOI:
10.1016/j.aquaculture.2011.12.008

55. Effect of tank shape on survival and growth of Pacific bluefin tuna Thunnus orientalis larvae

Author:
Aung Naing Win; Wataru Yamazaki; Takamasa Hasegawa; Kentaro Higuchi; Toshinori Takashi; Koichiro Gen; Tetsuya Sumida; Atsushi Hagiwara; Yoshitaka Sakakura
Source:
Aquaculture 2020 v.524 pp. 735283
ISSN:
0044-8486
Subject:
Rotifera; Thunnus orientalis; aeration; air; body length; fish larvae; light intensity; rearing; seawater; surface area; swim bladder; tanks
Abstract:
... We examined the effect of rearing tank shape on survival and growth of Pacific bluefin tuna Thunnus orientalis larvae. Cylindrical (1.7 × 10³ cm² water surface area; 30 cm deep) and rectangular (1.8 × 10³ cm² water surface area; 28 cm deep) tanks (n = 3 each) were filled with 50 l of seawater. One air stone with a 100 ml/min aeration rate was set at the bottom center of each tank. Light intensity ...
DOI:
10.1016/j.aquaculture.2020.735283

56. Effect of tank wall colour and pattern on the survival rate of juvenile Pacific bluefin tuna Thunnus orientalis (Temminck and Schlegel) during ship transportation

Author:
Tokihiko Okada; Masahiro Nakatani; Yoshifumi Sawada; Shigeru Miyashita; Hidemi Kumai; Yasunori Ishibashi
Source:
Aquaculture research 2015 v.46 no.2 pp. 446-452
ISSN:
1355-557X
Subject:
Thunnus orientalis; abnormal behavior; color; death; fish; solar radiation; survival rate; tanks; transportation
Abstract:
... Juvenile Pacific bluefin tuna (Thunnus orientalis; PBT) often experience high mortality during ship transportation. This study investigated whether the addition of colours or patterns to the walls of tanks affected survival rate. In the first experiment, three colours and lattice patterns were tested: dark blue single‐colour, red single‐colour, and red–blue lattice pattern. Fish in all tanks exhib ...
DOI:
10.1111/are.12196

57. Effect of taurine enrichment in rotifer (Brachionus sp.) on growth of larvae of Pacific bluefin tuna Thunnus orientalis (Temminck & Schlegel) and yellowfin tuna T. albacares (Temminck & Schlegel)

Author:
Ryo Katagiri; Tsukasa Sasaki; Alvaro Diaz; Masashi Ando; Daniel Margulies; Vernon P Scholey; Yoshifumi Sawada
Source:
Aquaculture research 2017 v.48 no.6 pp. 3013-3031
ISSN:
1355-557X
Subject:
Brachionus; DNA; RNA; Thunnus albacares; Thunnus orientalis; growth performance; hatching; larvae; larval development; protein content; protein synthesis; rearing; t-test; taurine; tuna
Abstract:
... To investigate the dietary effect of taurine on the larval stage of tuna species, Pacific bluefin tuna (PBF) and yellowfin tuna (YFT), larvae were reared until 16 days after hatching (dAH) and 14 dAH, respectively, and replicate samples were fed either non‐taurine‐enriched rotifers (T‐0) or rotifers enriched with 800 mg taurine L⁻¹ (T‐800). Most PBF and YFT larvae were at the preflexion stage unti ...
DOI:
10.1111/are.13134

58. Effect of temperature acclimation on red blood cell oxygen affinity in Pacific bluefin tuna (Thunnus orientalis) and yellowfin tuna (Thunnus albacares)

Author:
Laura E. Lilly; Joseph Bonaventura; Michael S. Lipnick; Barbara A. Block
Source:
Comparative biochemistry and physiology 2015 v.181 pp. 36-44
ISSN:
1095-6433
Subject:
Thunnus albacares; Thunnus orientalis; acclimation; binding capacity; carbon dioxide; environmental factors; erythrocytes; oxygen; physiology; seasonal variation; tanks; temperature; tissues; tuna
Abstract:
... Hemoglobin–oxygen (Hb–O2) binding properties are central to aerobic physiology, and must be optimized for an animal's aerobic requirements and environmental conditions, both of which can vary widely with seasonal changes or acutely with diving. In the case of tunas, the matter is further complicated by large regional temperature differences between tissues within the same animal. This study invest ...
DOI:
10.1016/j.cbpa.2014.11.014

59. Effect of water temperature on the feeding activity and the resultant mercury levels in the muscle of cultured bluefin tuna Thunnus orientalis (Temminck and Schlegel)

Author:
Ando, Masashi; Seoka, Manabu; Mukai, Yoshio; Jye, Mok Wen; Miyashita, Shigeru; Tsukamasa, Yasuyuki
Source:
Aquaculture research 2011 v.42 no.4 pp. 516-524
ISSN:
1355-557X
Subject:
Thunnus orientalis; Thunnus thynnus; absorption; body weight; digestion; feed conversion; fisheries; mercury; muscle tissues; muscles; rearing; safety standards; seasonal variation; tail; tuna; universities; water temperature; Japan
Abstract:
... Tuna muscle often contains high levels of mercury, and fish samples with mercury concentrations ten times higher than the specified safety standards have been reported. Here, we report on the relationship between water temperature and the concentration of mercury in the tail muscle tissue of cultured bluefin tuna Thunnus orientalis. The fish used in this study were cultured at Fisheries Laboratory ...
DOI:
10.1111/j.1365-2109.2010.02647.x

60. Effects of Brief Summer or Winter Fasting on the Muscle Quality of Cultured Pacific Bluefin Tuna (Thunnus orientalis)

Author:
Yasuyoshi Miyake; Bimol Chandra Roy; Masashi Ando; Tokihiko Okada; Yoshifumi Sawada; Manabu Seoka; Ken-Ichi Kawasaki; Yasuyuki Tsukamasa
Source:
Journal of aquatic food product technology 2011 v.20 no.2 pp. 196-208
ISSN:
1547-0636
Subject:
Thunnus orientalis; cold storage; color; fasting; glycogen; harvesting; lipid content; muscles; pH; summer; winter
Abstract:
... The effects of fasting on the quality of the dorsal and ventral ordinary muscles from cultured Pacific bluefin tuna (Thunnus orientalis) during chilled storage were investigated. Tuna were subjected to fasting for 2 days in the summer or 6 days in the winter prior to harvesting. The breaking strength of the dorsal ordinary muscle sampled in the summer increased until 24 h and then decreased. There ...
DOI:
10.1080/10498850.2011.558668

61. Effects of Freezing Temperature and Water Activity on Microstructure, Color, and Protein Conformation of Freeze-Dried Bluefin Tuna (Thunnus orientalis)

Author:
Nathdanai Harnkarnsujarit; Kiyoshi Kawai; Toru Suzuki
Source:
Food and bioprocess technology 2015 v.8 no.4 pp. 916-925
ISSN:
1935-5130
Subject:
Fourier transform infrared spectroscopy; Thunnus orientalis; Thunnus thynnus; X-radiation; animal-based foods; bioprocessing; color; computed tomography; crystals; freeze drying; freezing; freezing point; hydrogen bonding; ice; microbial growth; microstructure; muscle fibers; protein conformation; reflectance; shelf life; sorption; tuna; water activity; water temperature
Abstract:
... Freeze-drying of muscle foods including bluefin tuna (Thunnus orientalis) effectively restricted microbial growth and prolonged shelf life; however, microstructures and protein conformation changes possibly take place which contribute to functional and quality loss. This study aimed to investigate the effects of freezing and water sorption on microstructure, color, and conformation changes of prot ...
DOI:
10.1007/s11947-014-1460-1

62. Effects of environmental change and early-life stochasticity on Pacific bluefin tuna population growth

Author:
Hirotaka Ijima; Marko Jusup; Takenori Takada; Tetsuya Akita; Hiroyuki Matsuda; Tin Klanjscek
Source:
Marine environmental research 2019 v.149 pp. 18-26
ISSN:
0141-1136
Subject:
Thunnus orientalis; adverse effects; climate change; environmental factors; fisheries management; juveniles; models; population growth; reproductive performance; sexual maturity; temperature; tuna; young adults
Abstract:
... Species conservation and fisheries management require approaches that relate environmental conditions to population-level dynamics, especially because environmental conditions shift due to climate change. We combined an individual-level physiological model and a conceptually simple matrix population model to develop a novel tool that relates environmental change to population dynamics, and used th ...
DOI:
10.1016/j.marenvres.2019.05.003

63. Effects of light wavelength on growth and survival rate in juvenile Pacific bluefin tuna, Thunnus orientalis

Author:
Yoshiki Tsutsumi; Taro Matsumoto; Tomoki Honryo; Yasuo Agawa; Yoshifumi Sawada; Yasunori Ishibashi
Source:
Environmental biology of fishes 2014 v.97 no.1 pp. 53-58
ISSN:
0378-1909
Subject:
Thunnus orientalis; feeding behavior; fish; growth performance; habitats; juveniles; rearing; red light; survival rate; tanks; wavelengths; white light
Abstract:
... The spectral sensitivity of the fish and the suitable light wavelength range for survival and growth performance of juvenile Pacific bluefin tuna (PBT) were investigated. The spectral sensitivity peak of PBT under photopic condition was observed between 449 and 503 nm, which corresponded to their natural habitat. The fish were reared in tanks irradiated continuously with 4 kinds of light emitting ...
DOI:
10.1007/s10641-013-0122-x

64. Effects of night-time light intensity and area of illumination in the sea cage culture of Pacific bluefin tuna (Thunnus orientalis) juveniles

Author:
Tomoki Honryo; Tokihiko Okada; Masato Kawahara; Yoshifumi Sawada; Michio Kurata; Yasunori Ishibashi
Source:
Aquaculture 2020 v.521 pp. 735046
ISSN:
0044-8486
Subject:
Thunnus orientalis; cage culture; cages; death; fish culture; juveniles; light intensity; lighting; survival rate; tanks
Abstract:
... The high mortality rates of Pacific bluefin tuna (PBF; Thunnus orientalis) juveniles due to collision death can be alleviated by night-time lighting both in land-based tanks and sea cages; however, the optimal night-time lighting intensity and area of illumination for sea cages have not been systematically investigated. We addressed these issues in the present study using seven different night-tim ...
DOI:
10.1016/j.aquaculture.2020.735046

65. Effects of photoperiod and night‐time aeration rate on swim bladder inflation and survival in Pacific bluefin tuna, Thunnus orientalis (Temminck & Schlegel), larvae

Author:
Michio Kurata; Yoshiki Tamura; Tomoki Honryo; Yasunori Ishibashi; Yoshifumi Sawada
Source:
Aquaculture research 2017 v.48 no.8 pp. 4486-4502
ISSN:
1355-557X
Subject:
Thunnus orientalis; aeration; death; larvae; photophase; scotophase; spatial distribution; swim bladder
Abstract:
... Success of swim bladder inflation (SBI) is crucial for early survival of Pacific bluefin tuna (PBF) larvae, because it reduces larval sinking death by enhancing buoyancy. In Experiment 1, we examined the effect of photoperiod on SBI and survival in PBF larvae by comparing photoperiods of 9L: 15D (9L), 14L: 10D (14L: natural photoperiod), 19L: 5D (19L) and 24L: 0D (24L) during 2–10 days post hatch ...
DOI:
10.1111/are.13274

66. Effects of tank wall pattern on survival, bone injury rate, and stress response of juvenile Pacific bluefin tuna, Thunnus orientalis

Author:
Yasunori Ishibashi; Tatsuya Izumi; Michio Kurata; Tokihiko Okada
Source:
Aquacultural engineering 2013 v.56 pp. 13-17
ISSN:
0144-8609
Subject:
Thunnus orientalis; aquaculture tanks; bones; color; cortisol; fish culture; hatching; rearing; risk; stress response; survival rate
Abstract:
... Juvenile Pacific bluefin tuna (PBT), Thunnus orientalis, aged 30 or more days post hatching (≥5cm total length) are at high risk of mortality through contact or collision with tank walls. In this study, survival rates of PBT reared under three tank wall treatments (polka dot pattern, lattice pattern, and dark-green single color (control) were investigated. White tape was attached to the tank's sur ...
DOI:
10.1016/j.aquaeng.2013.03.004

67. Energy partitioning in cultured juvenile Pacific bluefin tuna, Thunnus orientalis (Temminck & Schlegel, 1844)

Author:
Takayuki Ohnishi; Amal Biswas; Kohshi Kaminaka; Takahiro Nakao; Masashi Nakajima; Noboru Sakakibara; Kenji Takii
Source:
Aquaculture research 2016 v.47 no.7 pp. 2040-2049
ISSN:
1355-557X
Subject:
Thunnus orientalis; artificial diets; digestibility; energy conversion; fish; growth performance; juveniles; metabolism; oxygen consumption; swimming; tanks; thermic effect of food
Abstract:
... The characteristics of dietary utilization, energy conversion efficiency, metabolic rate and energy partitioning were measured for cultured Pacific bluefin tuna (PBT) juveniles fed on an artificial diet. Thirty‐one juveniles (1.1 ± 0.3 g BW) were stocked into each of two 2500 L tanks to measure oxygen consumption (ḾO₂), swimming speed, digestibility and growth performance. ḾO₂ elevated until 2.5 ± ...
DOI:
10.1111/are.12658

68. Environmental associations of Pacific bluefin tuna (Thunnus orientalis) catch in the California Current system

Author:
Rosa M. Runcie; Barbara Muhling; Elliott L. Hazen; Steven J. Bograd; Toby Garfield; Gerard DiNardo
Source:
Fisheries oceanography 2019 v.28 no.4 pp. 372-388
ISSN:
1054-6006
Subject:
El Nino; Thunnus orientalis; chlorophyll; ecosystems; fisheries management; gillnets; habitats; kinetic energy; oceanography; probability; surface water temperature; Pacific Ocean
Abstract:
... We investigate the impact of oceanographic variability on Pacific bluefin tuna (Thunnus orientalis: PBF) distributions in the California Current system using remotely sensed environmental data, and fishery‐dependent data from multiple fisheries in a habitat‐modeling framework. We examined the effects of local oceanic conditions (sea surface temperature, surface chlorophyll, sea surface height, edd ...
DOI:
10.1111/fog.12418

69. Establishment of a tracing technique for transplanted bluefin tuna germ cells in recipient’s gonads using monoclonal antibodies specifically recognizing bluefin tuna spermatogenic cells

Author:
Ryosuke Yazawa; Tsubasa Kubokawa; Kensuke Ichida; Wataru Kawamura; Reoto Tani; Shigeharu Kamio; Tetsuro Morita; Goro Yoshizaki
Source:
Fisheries science 2021 v.87 no.1 pp. 105-112
ISSN:
0919-9268
Subject:
Euthynnus affinis; Scomber japonicus; Thunnus orientalis; breeding stock; cell transplantation; gametogenesis; germ cells; mackerel; testes; tuna
Abstract:
... Our ultimate aim is to establish a small-bodied surrogate broodstock (e.g., mackerel) that produces functional gametes of the Pacific bluefin tuna Thunnus orientalis using xenogeneic germ cell transplantation. To accomplish this goal, we need to be able to sequentially trace transplanted donor cells in recipients. Here we succeeded in identifying two monoclonal antibodies that could specifically r ...
DOI:
10.1007/s12562-020-01486-2

70. Estimated time for recovery from transportation stress and starvation in juvenile Pacific bluefin tuna Thunnus orientalis

Author:
Tomoki Honryo; Tokihiko Oakada; Masato Kawahara; Michio Kurata; Yasuo Agawa; Yoshifumi Sawada; Shigeru Miyashita; Kenji Takii; Yasunori Ishibashi
Source:
Aquaculture 2018 v.484 pp. 175-183
ISSN:
0044-8486
Subject:
Thunnus orientalis; cages; cortisol; environmental factors; fish; gene expression; gene expression regulation; gills; glucose; heat-shock protein 70; hypoxia-inducible factor 1; juveniles; lipids; liver; mortality; starvation; stress response; tanks; transportation
Abstract:
... It is important to understand the physiological stress responses in juvenile Pacific bluefin tuna (PBF), Thunnus orientalis, when transporting them from land-based tanks to sea cages, to develop countermeasures against mass mortality and enhance survival. We investigated the estimated time required to recover from transportation stress in PBF juveniles (32 and 35days post hatch (DPH)) transported ...
DOI:
10.1016/j.aquaculture.2017.11.023

71. Estimating fishing and natural mortality rates for Pacific bluefin tuna (Thunnus orientalis) using electronic tagging data

Author:
R.E. Whitlock; M.K. McAllister; B.A. Block
Source:
Fisheries research 2012 v.119-120 no. pp. 115-127
ISSN:
0165-7836
Subject:
Thunnus orientalis; models; mortality; Pacific Ocean
Abstract:
... This paper presents estimates of fishing and natural mortality rates derived from a spatially- and seasonally structured Bayesian mark-recapture model for electronically tagged Pacific bluefin tuna (PBFT) (Thunnus orientalis). Fishing mortality rates (F) were estimated by age group, year, quarter and area and ranged between 0.02 and 1.92quarter⁻¹ for the northeastern Pacific Ocean (EPO) and 0.18 a ...
DOI:
10.1016/j.fishres.2011.12.015

72. Euryphorus brachypterus (Copepoda: Caligidae) on wild pacific bluefin tuna from the Tsugaru Strait, northern Japan

Author:
Minoru Kanaiwa; Yuki Yamamoto; Yuko Hiraoka; Minoru Kato; Gakushi Ishimura; Hirotaka Katahira
Source:
Parasitology international 2016 v.65 no.3 pp. 268-270
ISSN:
1383-5769
Subject:
Caligidae; Thunnus orientalis; aquaculture; fish; hosts; surveys; Japan
Abstract:
... Parasitic copepods infecting large scombrid fishes have been known for a long time because their hosts are economically important. Most studies, however, have focused on their morphology or their infection status in aquaculture from pathological viewpoints, and very few quantitative surveys have been conducted under conditions in the wild. This study therefore investigated the prevalence of Euryph ...
DOI:
10.1016/j.parint.2016.02.002

73. Evaluation of growth-dependent survival during early stages of Pacific bluefin tuna using otolith microstructure analysis

Author:
Mikio Watai; Taiki Ishihara; Osamu Abe; Seiji Ohshimo; Carlos Augusto Strussmann
Source:
Marine & freshwater research 2017 v.68 no.11 pp. 2008-2017
ISSN:
1323-1650
Subject:
Thunnus orientalis; body size; juveniles; larvae; microstructure; ontogeny; otoliths; Pacific Ocean
Abstract:
... The present study used otolith analysis-based body size back-calculation to: (1) evaluate the hypothesis of growth-dependent survival in young Pacific bluefin tuna (PBF; Thunnus orientalis) from the north-western Pacific Ocean; (2) identify critical developmental stages for survival; and (3) compare interannual differences in early growth. To this end, we compared the daily growth trajectories of ...
DOI:
10.1071/MF16337

74. Evaluation of the effects of otolith sampling strategies and ageing error on estimation of the age composition and growth curve for Pacific bluefin tuna Thunnus orientalis

Author:
Yi-Jay Chang; Jhen Hsu; Jen-Chieh Shiao; Shui-Kai Chang
Source:
Marine & freshwater research 2019 v.70 no.12 pp. 1838-1849
ISSN:
1323-1650
Subject:
Monte Carlo method; Thunnus orientalis; fish; fisheries; growth curves; guidelines; otoliths; sample size; sampling; simulation models; uncertainty; Taiwan
Abstract:
... The age composition of the catch and the growth curve of a stock are fundamentally important in fish stock assessment, but these estimates are subject to various sources of uncertainty. Using the Pacific bluefin tuna (Thunnus orientalis) fisheries in the waters off Taiwan as an example, we developed a Monte Carlo simulation model to evaluate the effects of four otolith sampling methods (random oto ...
DOI:
10.1071/MF18241

75. Evidence of westward transoceanic migration of Pacific bluefin tuna in the Sea of Japan based on stable isotope analysis

Author:
Atsushi Tawa; Taiki Ishihara; Yuki Uematsu; Tsuneo Ono; Seiji Ohshimo
Source:
Marine biology 2017 v.164 no.4 pp. 94
ISSN:
0025-3162
Subject:
Thunnus orientalis; cluster analysis; discriminant analysis; migratory species; models; nitrogen; stable isotopes; Pacific Ocean; Sea of Japan
Abstract:
... Pacific bluefin tuna (Thunnus orientalis; PBFT) is a highly migratory species, with some individuals migrating between the western Pacific Ocean (WPO) and eastern Pacific Ocean (EPO). In this study, we used stable isotope analysis to identify PBFT that had recently undergone westward transoceanic migration on the Sea of Japan. A total of 155 PBFT individuals were examined. Their ages ranged from 2 ...
DOI:
10.1007/s00227-017-3127-8

76. Factors Influencing Early Survival and Growth of Laboratory‐reared Pacific Bluefin Tuna, Thunnus orientalis, Larvae

Author:
Yosuke Tanaka; Kazunori Kumon; Kentaro Higuchi; Takeshi Eba; Akefumi Nishi; Hideki Nikaido; Satoshi Shiozawa
Source:
Journal of the World Aquaculture Society 2018 v.49 no.3 pp. 484-492
ISSN:
0893-8849
Subject:
Thunnus orientalis; aeration; analysis of variance; breeding stock; captive animals; egg quality; eggs; hatching; larvae; rearing; spawning; survival rate; water temperature
Abstract:
... The collection of fertilized eggs for mass culture of Pacific bluefin tuna (PBT) relies on the spontaneous spawning of broodstock in captivity, and the spawning season of the broodstock is generally from mid‐May to September. The diameter of fertilized eggs from the broodstock decreases during the spawning season. To investigate the influence of three potential factors, the egg diameter (larger or ...
DOI:
10.1111/jwas.12453

77. Feeding ecology of juvenile Pacific bluefin tuna Thunnus orientalis in the Sea of Japan

Author:
Takuya Sato; Ken-ichi Nakamura; Atsushi Nishimoto; Atsushi Tawa; Taketoshi Kodama; Nobuaki Suzuki; Hiroshi Ashida; Hiroshige Tanaka
Source:
Marine & freshwater research 2021 v.73 no.3 pp. 377-387
ISSN:
1323-1650
Subject:
Cephalopoda; Copepoda; Engraulis japonicus; Thunnus orientalis; cannibalism; fish; fisheries; food consumption; freshwater; gastrointestinal motility; isotopes; juveniles; nitrogen; research; squid; stomach; trophic levels; Sea of Japan
Abstract:
... The feeding ecology of juvenile Pacific bluefin tuna (PBF) Thunnus orientalis in the Sea of Japan was examined to better understand the survival process before fishery recruitment. Stomach content analysis showed that the main prey items were fish, especially Japanese anchovy Engraulis japonicus , cephalopods, mainly small squid Enoploteuthis chunii , and copepods. In addition, although both fish ...
DOI:
10.1071/MF21200

78. Fishing‐induced changes in adult length are mediated by skipped‐spawning

Author:
Hui‐Yu Wang; Ying‐Shiuan Chen; Chien‐Chung Hsu; Sheng‐Feng Shen
Source:
Ecological applications 2017 v.27 no.1 pp. 274-284
ISSN:
1051-0761
Subject:
Thunnus orientalis; adults; demography; evolution; fish communities; life history; longline fisheries; migratory species; models; mortality; population dynamics; spawning; sustainable fisheries; temporal variation; tuna
Abstract:
... Elucidating fishing effects on fish population dynamics is a critical step toward sustainable fisheries management. Despite previous studies that have suggested age or size truncation in exploited fish populations, other aspects of fishing effects on population demography, e.g., via altering life histories and density, have received less attention. Here, we investigated the fishing effects alterin ...
DOI:
10.1002/eap.1441

79. Flow field control in marine fish larviculture tanks: lessons from groupers and bluefin tuna in Japan

Author:
Y. Sakakura; W. Yamazaki; Y. Takakuwa; T. Sumida; T. Takebe; A. Hagiwara
Source:
Aquaculture 2019 v.498 pp. 513-521
ISSN:
0044-8486
Subject:
Hyporthodus septemfasciatus; Inimicus japonicus; Thunnus orientalis; aeration; cages; control methods; death; fish larvae; grouper; marine fish; mixing; rearing; survival rate; tanks; Japan
Abstract:
... Flow field in a larviculture tank is often based on the empirical assumptions by fish culturists and science-based information had been very limited. Therefore, we studied and reviewed research on the flow field dynamics in larviculture tanks of groupers and Pacific bluefin tuna, and compared them with results from our own and other studies. For radial symmetry tanks (cylindrical or octagonal), ae ...
DOI:
10.1016/j.aquaculture.2018.09.012

80. Flow-cytometric enrichment of Pacific bluefin tuna type A spermatogonia based on light-scattering properties

Author:
Kensuke Ichida; Kazuyoshi Kise; Tetsuro Morita; Ryosuke Yazawa; Yutaka Takeuchi; Goro Yoshizaki
Source:
Theriogenology 2017 v.101 pp. 91-98
ISSN:
0093-691X
Subject:
Thunnus orientalis; breeding stock; cell suspension culture; eggs; fish; flow cytometry; gametogenesis; genes; histology; light scattering; seeds; spermatogonia; spermatozoa; testes
Abstract:
... We previously established surrogate broodstock in which the donor germ cells transplanted into the peritoneal cavities of xenogeneic recipients were capable of developing into functional eggs and sperm in teleost fish. In this transplantation system, only the undifferentiated germ cells such as type A spermatogonia (ASG) or a portion of the ASG population were capable of being incorporated into th ...
DOI:
10.1016/j.theriogenology.2017.06.022

81. Genetic heterogeneity of betanodaviruses in juvenile production trials of Pacific bluefin tuna, Thunnus orientalis (Temminck '' Schlegel)

Author:
Sugaya, T.; Mori, K.; Nishioka, T.; Masuma, S.; Oka, M.; Mushiake, K.; Okinaka, Y.; Nakai, T.
Source:
Journal of fish diseases 2009 v.32 no.10 pp. 815-824
ISSN:
0140-7775
Subject:
Thunnus orientalis; breeding stock; coat proteins; disease transmission; genes; genetic heterogeneity; haplotypes; hatcheries; juveniles; necrosis; nucleotide sequences; population growth; reverse transcriptase polymerase chain reaction; tuna; Japan
Abstract:
... Pacific bluefin tuna, Thunnus orientalis (Temminck '' Schlegel), is one of the most important commercially exploited fish species in the world, and juvenile production techniques have been developed for its culture and stock enhancement in Japan. However, recent juvenile production has often failed because of the occurrence of viral nervous necrosis caused by betanodaviruses. In this study, we exa ...
DOI:
10.1111/j.1365-2761.2009.01057.x
PubMed:
19538459

82. Genetic identification of Thunnus orientalis, T. thynnus, and T. maccoyii by a cytochrome b gene analysis

Author:
Tseng, Mei-Chen; Shiao, Jen-Chieh; Hung, Yin-Huei
Source:
Environmental biology of fishes 2011 v.91 no.1 pp. 103-115
ISSN:
0378-1909
Subject:
Thunnus orientalis; Thunnus thynnus; cytochrome b; evolution; fisheries management; genes; genetic variation; marketing; nucleotide sequences; nucleotides; tuna
Abstract:
... The three species of bluefin tunas, Thunnus orientalis, T. maccoyii, and T. thynnus, are morphologically similar, which can pose problems for fisheries management and marketing. We examined intraspecific genetic diversity and interspecific genetic boundaries among these three species by analyzing the cytochrome (Cyt) b gene. The full lengths of the nucleotide sequences were 1,141 bp in T. oriental ...
DOI:
10.1007/s10641-010-9764-0

83. Genotyping‐by‐sequencing for construction of a new genetic linkage map and QTL analysis of growth‐related traits in Pacific bluefin tuna

Author:
Tsubasa Uchino; Erina Hosoda; Yoji Nakamura; Motoshige Yasuike; Miyuki Mekuchi; Masashi Sekino; Atushi Fujiwara; Takuma Sugaya; Yosuke Tanaka; Kazunori Kumon; Yasuo Agawa; Yoshifumi Sawada; Motohiko Sano; Takashi Sakamoto
Source:
Aquaculture research 2018 v.49 no.3 pp. 1293-1301
ISSN:
1355-557X
Subject:
Thunnus orientalis; breeding stock; chromosome mapping; females; fish culture; genetic improvement; genetic markers; genotyping by sequencing; linkage groups; marker-assisted selection; market value; normal distribution; quantitative trait loci; rearing; single nucleotide polymorphism
Abstract:
... Pacific bluefin tuna (Thunnus orientalis) has high market value, but its wild populations have decreased in recent years. The broodstock of Pacific bluefin tuna that were hatched artificially and reared under aquaculture conditions is beginning to be used for production. The creation of broodstock with commercially valuable traits, such as rapid growth, is therefore of great interest. Genetic link ...
DOI:
10.1111/are.13584

84. GnRHa-induced spawning of the Eastern little tuna (Euthynnus affinis) in a 70-m3 land-based tank

Author:
Ryosuke Yazawa; Yutaka Takeuchi; Kotaro Amezawa; Kenta Sato; Gaku Iwata; Naoki Kabeya; Goro Yoshizaki
Source:
Aquaculture 2015 v.442 pp. 58-68
ISSN:
0044-8486
Subject:
DNA; Euthynnus affinis; Thunnus orientalis; agonists; body size; breeding stock; captive animals; eggs; females; genetic similarity; genotyping; germ cells; gonadotropin-releasing hormone; hatching; larvae; males; net pens; parentage; pellets; progeny; rearing; spawning; tuna
Abstract:
... A suitable recipient species is essential for efficient production of donor-derived gametes. With its relatively small body size, short generation time, and physiological and genetic similarities to Pacific bluefin tuna (PBT; Thunnus orientalis), Eastern little tuna (ELT, Euthynnus affinis) is a suitable candidate recipient species for spermatogonial transplantation. To provide a stable source of ...
DOI:
10.1016/j.aquaculture.2015.01.016

85. Gonadal sex differentiation and early ovarian/testicular development in cultured Pacific bluefin tuna, Thunnus orientalis (Temminck et Schlegel)

Author:
Takao Hayashida; Kentaro Higuchi; Hiroshi Hashimoto; Yukinori Kazeto; Takeshi Eba; Sota Yoshikawa; Rie Goto; Kogen Okita; Toshinori Takashi; Keita Ishii; Takashi Yamashita; Kazunori Kumon; Koichiro Gen
Source:
Theriogenology 2021 v.173 pp. 56-63
ISSN:
0093-691X
Subject:
Japan; Thunnus orientalis; aquaculture; females; lipid content; males; meiosis; muscles; oocytes; oogonia; sexual dimorphism; sexual maturity; spermatids; spermatocytes; spermatogonia; testicular development
Abstract:
... Pacific bluefin tuna (PBT), Thunnus orientalis, is one of the most important species for aquaculture in Japan. Recently, the reduction in muscle fat content associated with sexual maturation in farmed PBT has become a serious problem. To develop technologies for inducing sterility, detailed and reliable data on gonadal development in PBT are needed. Here, we demonstrated the process of gonadal sex ...
DOI:
10.1016/j.theriogenology.2021.07.016

86. Growth and survival model of Pacific bluefin tuna (Thunnus orientalis) for capture‐based aquaculture in Mexico

Author:
Francisco Javier Vergara‐Solana; Marcelo Araneda‐Padilla; Jerónimo Ramos Sáenz Pardo; Sofia Ortega‐García; Juan Carlos Seijo; Germán Ponce‐Díaz
Source:
Aquaculture research 2019 v.50 no.12 pp. 3549-3558
ISSN:
1355-557X
Subject:
Thunnus orientalis; biological production; biomass; fish culture; models; net pens; production functions; risk analysis; seed weight; surface water temperature; tuna; Mexico
Abstract:
... Capture‐based aquaculture (CBA) is a strategy to capture wild aquatic organisms for rearing. The most iconic species produced under this scheme are bluefin tunas. In Mexico, CBA of this species is developed with Pacific bluefin tunas (PBFT). The parametrization of a biological production function able to describe biomass dynamics during the production cycle is one of the strategies that can help o ...
DOI:
10.1111/are.14310

87. Gustatory responses in Pacific bluefin tuna Thunnus orientalis (Temminck and Schlegel)

Author:
Kohbara, Jun; Miyazaki, Taeko; Takii, Kenji; Hosokawa, Hidetsuyo; Ukawa, Masaharu; Kumai, Hidemi
Source:
Aquaculture research 2006 v.37 no.9 pp. 847-854
ISSN:
1355-557X
Subject:
Thunnus orientalis; amino acids; ammonium chloride; betaine; nerve tissue; oxides; palate; pyruvic acid; receptors; trimethylamine
Abstract:
... Gustatory neural responses of the Pacific bluefin tuna Thunnus orientalis (Temminck and Schlegel) to extracted compounds of prey organisms, such as amino acids, nucleotide-related substances, organic acids and organic bases, were electrophysiologically recorded from the facial nerve supplying the anterior palate. Of the 17 amino acids tested, [smallcapital l]-proline was the most potent amino acid ...
DOI:
10.1111/j.1365-2109.2006.01501.x

88. Habitat use and movement patterns of small (age‐0) juvenile Pacific bluefin tuna (Thunnus orientalis) relative to the Kuroshio

Author:
Ko Fujioka; Hiromu Fukuda; Seishiro Furukawa; Yaoki Tei; Suguru Okamoto; Seiji Ohshimo
Source:
Fisheries oceanography 2018 v.27 no.3 pp. 185-198
ISSN:
1054-6006
Subject:
Thunnus orientalis; autumn; coastal water; coasts; habitat preferences; hatching; juveniles; spring; summer; water temperature; winter; Japan
Abstract:
... The habitat use of Pacific bluefin tuna (Thunnus orientalis; PBF) in nursery waters off the southern coast of Japan was investigated using archival tags over a 3 year study period (2012–2015), and the data were used to examine the free‐ranging habitat preferences of PBF and the relationship between their horizontal movements and the path of the Kuroshio off the Pacific coast of Japan. The path of ...
DOI:
10.1111/fog.12244

89. Hearing thresholds of swimming Pacific bluefin tuna Thunnus orientalis

Author:
Jonathan J. Dale; Michael D. Gray; Arthur N. Popper; Peter H. Rogers; Barbara A. Block
Source:
Journal of comparative physiology 2015 v.201 no.5 pp. 441-454
ISSN:
0340-7594
Subject:
Euthynnus affinis; Thunnus albacares; Thunnus orientalis; acoustics; hearing; humans; migratory behavior; swimming; tuna
Abstract:
... Pacific bluefin tuna (Thunnus orientalis) is a highly migratory, commercially valuable species potentially vulnerable to acoustic noise generated from human activities which could impact behavior and fitness. Although significant efforts have been made to understand hearing abilities of fishes, the large size and need to continuously swim for respiration have hindered investigations with tuna and ...
DOI:
10.1007/s00359-015-0991-x

90. Heterologous hybridization to a complementary DNA microarray reveals the effect of thermal acclimation in the endothermic bluefin tuna (Thunnus orientalis)

Author:
Castilho, Pedro C.; Buckley, Bradley A.; Somero, George; Block, Barbara A.
Source:
Molecular ecology 2009 v.18 no.10 pp. 2092-2102
ISSN:
0962-1083
Subject:
DNA microarrays; Thunnus orientalis; acclimation; behavior change; cold; complementary DNA; gene expression; gene expression regulation; genes; genomics; hybridization; muscle fibers; muscles; pelagic fish; temperature; thermal stress
Abstract:
... The temperature stress that pelagic fishes experience can induce physiological and behavioural changes that leave a signature in gene expression profiles. We used a functional genomics approach to identify genes that were up- or down-regulated following thermal stress in the Pacific bluefin tuna. Following the acclimation period, 113, 81 and 196 genes were found to be differentially expressed betw ...
DOI:
10.1111/j.1365-294X.2009.04174.x
PubMed:
19389180

91. Histological comparison of the dorsal ordinary muscles of wild and full-cycle cultured Pacific bluefin tuna (Thunnus orientalis)

Author:
Nakamura, Y.N.; Ando, M.; Seoka, M.; Kawasaki, K.; Tsukamasa, Y.
Source:
Journal of the science of food and agriculture 2006 v.86 no.10 pp. 1537-1544
ISSN:
0022-5142
Subject:
water content; Thunnus thynnus; histology; tuna; farmed fish; muscles; lipid content; fish culture; marine fish; glycogen; Thunnus orientalis
Abstract:
... The histological properties of the cephalad parts of the dorsal ordinary muscles (CD-OMs) of wild (body weight 33.3 ± 0.9 kg, n = 3) and full-cycle cultured (body weights 13.1 ± 2.6 (FC 1), 20.2 ± 1.0 (FC 2) and 28.5 ± 3.6 (FC 3) kg, n = 3 respectively) Pacific bluefin tuna were investigated. The CD-OMs of FC 1-3 tuna showed low moisture content (P < 0.05) and high fat content (about six times mor ...
DOI:
10.1002/jsfa.2542

92. Identification of growth‐related nucleotide polymorphism in cultured Pacific bluefin tuna, Thunnus orientalis

Author:
Yasuo Agawa; Toshio Kaga; Shigekazu Katayama; Tokihiko Okada; Yoshifumi Sawada
Source:
Aquaculture research 2017 v.48 no.7 pp. 3320-3328
ISSN:
1355-557X
Subject:
DNA; DNA fragmentation; Thunnus orientalis; amplified fragment length polymorphism; consensus sequence; haplotypes; harvest date; loci; screening; sequence analysis; tuna
Abstract:
... Pacific bluefin tuna (PBF), Thunnus orientalis, is commercially one of the most important species of tuna. In this study, amplified fragment length polymorphism (AFLP) screening was conducted to find the growth‐related polymorphic DNA in cultured PBF. Fish hatched in 2007 were harvested at an age of 818–1994 days. They were categorized into superior, average and inferior growth groups, depending o ...
DOI:
10.1111/are.13158

93. Identification of tuna species by a real-time polymerase chain reaction technique

Author:
Po-Shun Chuang; Meng-I Chen; Jen-Chieh Shiao
Source:
Food chemistry 2012 v.133 no.3 pp. 1055-1061
ISSN:
0308-8146
Subject:
Thunnus albacares; Thunnus obesus; Thunnus orientalis; Thunnus thynnus; consumer protection; fisheries management; polymerase chain reaction; taxonomy; tuna
Abstract:
... Tuna are highly priced fishes that are often used in processed products. For effective fishery management and protection of consumers’ rights, it is important to develop a molecular method to identify the species of the tuna products. In this study we have developed a molecular method based on real-time polymerase chain reaction (real-time PCR) technology for the rapid identification of four tuna ...
DOI:
10.1016/j.foodchem.2012.01.076

94. Immature Pacific bluefin tuna, Thunnus orientalis, utilizes cold waters in the Subarctic Frontal Zone for trans-Pacific migration

Author:
Takashi Kitagawa; Shingo Kimura; Hideaki Nakata; Harumi Yamada; Akira Nitta; Yoshikazu Sasai; Hideharu Sasaki
Source:
Environmental biology of fishes 2009 v.84 no.2 pp. 193-196
ISSN:
0378-1909
Subject:
Thunnus orientalis; Thunnus thynnus; ambient temperature; cold; cold zones; fish; habitats; heat; surface temperature; swimming
Abstract:
... The habitat and movements of a Pacific bluefin tuna were investigated by reanalyzing archival tag data with sea surface temperature data. During its trans-Pacific migration to the eastern Pacific, the fish took a direct path and primarily utilized waters, in the Subarctic Frontal Zone (SFZ). Mean ambient temperature during the trans-Pacific migration was 14.5 ± 2.9 (°C ± SD), which is significantl ...
DOI:
10.1007/s10641-008-9409-8

95. Immune reactivity in early life stages of sea-cage cultured Pacific bluefin tuna naturally infected with blood flukes from genus Cardicola (Trematoda: Aporocotylidae)

Author:
Ylenia Pennacchi; Sho Shirakashi; Barbara F. Nowak; Andrew R. Bridle
Source:
Fish & shellfish immunology 2016 v.58 pp. 490-499
ISSN:
1050-4648
Subject:
Cardicola; DNA; Thunnus orientalis; adults; blood flukes; cage culture; drugs; eggs; fish; gene expression regulation; genes; gills; heart; immune response; immunization; immunoglobulin M; interleukin-1beta; juveniles; markets; microscopy; mortality; oral administration; praziquantel; prices; quantitative polymerase chain reaction; transcription (genetics); Australia; Japan; Southern European region
Abstract:
... Pacific bluefin tuna (PBT), Thunnus orientalis, due to its high average price on the market is an economically valuable fish species. Infections by blood flukes from the genus Cardicola (Trematoda: Aporocotylidae) represent a growing concern for the cage culture of bluefin tuna in Japan, Australia and Southern Europe. The accumulation of numerous Cardicola eggs in the fish gills causes severe path ...
DOI:
10.1016/j.fsi.2016.09.060

96. Impacts of deep-sea aging on quality of greater amberjack (Seriola dumerili) and bluefin tuna (Thunnus orientalis) meats

Author:
Yusa Nakamura; Takanori Sato; Muneshige Takatori; Toshihiko Hirama; Kazuhito Oshima; Kigen Takahashi
Source:
Lebensmittel-Wissenschaft + Technologie 2021 v.146 pp. 111326
ISSN:
0023-6438
Subject:
Seriola dumerili; Thunnus orientalis; energy; fish; fisheries; free amino acids; meat quality; proteolysis; refrigeration; taste; texture
Abstract:
... This is the first report on the effective utilization of the deep sea for improving food quality. Long-term aged fish has recently received substantial attention because of improved taste quality and the sustainable utilization of fishery resources. However, problems such as the refrigeration energy and space limitations for aging remain. Therefore, effects of deep-sea aging at a 2034 m depth for ...
DOI:
10.1016/j.lwt.2021.111326

97. Improving rearing performance in sea‐cage culture of Pacific bluefin tuna Thunnus orientalis juveniles (Temminck and Schlegel) using small sea cages

Author:
Tokihiko Okada; Yuki Sakurai; Tomoki Honryo; Masato Kawahara; Yasunori Ishibashi
Source:
Aquaculture research 2020 v.51 no.7 pp. 3017-3024
ISSN:
1355-557X
Subject:
Thunnus orientalis; fingerlings; growth performance; juveniles; specific growth rate; survival rate; weight gain
Abstract:
... High levels of mortality occur in large net‐cage culture of Pacific bluefin tuna (PBF) Thunnus orientalis due to poor growth on commencement of sea‐cage culture obstructing the mass production of fingerlings. Therefore, we carried out this study to develop a countermeasure by using small sea cages (square with 13‐m sides). PBF juveniles were directly transferred to a 30‐m‐diameter cage (control) a ...
DOI:
10.1111/are.14641

98. In vitro amino acid absorption using hydrolysed sardine muscle or soybean meal at different intestinal regions of the Pacific bluefin tuna (Thunnus orientalis)

Author:
MARTÍNEZ-MONTAÑO, E.; PEÑA, E.; VIANA, M.T.
Source:
Aquaculture nutrition 2011 v.17 no.3 pp. e789
ISSN:
1353-5773
Subject:
follicle-stimulating hormone; pork; Thunnus orientalis; Thunnus thynnus; protein sources; muscles; absorption; essential amino acids; intestinal absorption; protein hydrolysates; sardines; enterocytes; soybean meal; hydrolysates; pepsin
Abstract:
... The amino acid (AA) absorption along the intestinal tract of the Pacific bluefin tuna (Thunnus orientalis) was evaluated using two hydrolysed protein sources (fresh sardine muscle and soybean meal) with the everted intestine technique. Pork pepsin and pancreatic enzyme extract from the bluefin tuna were used to hydrolyse the protein from fresh sardine (FSH) and soybean meal (SMH) under optimal blu ...
DOI:
10.1111/j.1365-2095.2011.00850.x

99. In vitro digestion comparison from fish and poultry by-product meals from simulated digestive process at different times of the Pacific Bluefin tuna, Thunnus orientalis

Author:
Ezequias Castillo-Lopez; Rosa Elena Espinoza-Villegas; María Teresa Viana
Source:
Aquaculture 2016 v.458 pp. 187-194
ISSN:
0044-8486
Subject:
Thunnus orientalis; alkaline hydrolysis; amino acid composition; aquaculture; byproducts; crude protein; digestible protein; digestion; fish; fish meal; gastrointestinal system; hydrolysates; in vitro digestion; ingredients; metabolism; molecular weight; pepsin; peptides; poultry; poultry meal; protein sources; scanning electron microscopy
Abstract:
... The objective of this study was to compare the hydrolysates of fish meal (FM) and poultry by-product meal (PBM) upon in vitro simulation of the digestion process of the Pacific Bluefin tuna, Thunnus orientalis. Two grams of crude protein from each meal were hydrolyzed in triplicate for 60min using pepsin followed by alkaline hydrolysis for 180min using a pancreatic crude extract. Aliquots were col ...
DOI:
10.1016/j.aquaculture.2016.03.011

100. Incidence of three Kudoa spp., K. neothunni, K. hexapunctata, and K. thunni (Myxosporea: Multivalvulida), in Thunnus tunas distributed in the western Pacific Ocean

Author:
Akihiro Kasai; Hideaki Tsuduki; Lea Angsinco Jimenez; Ying-Chun Li; Shuhei Tanaka; Hiroshi Sato
Source:
Parasitology research 2017 v.116 no.4 pp. 1137-1150
ISSN:
0932-0113
Subject:
Kudoa; Paralichthys olivaceus; Thunnus albacares; Thunnus orientalis; diarrhea; flounder; foodborne illness; genes; internal transcribed spacers; morphs; muscles; new host records; poisoning; raw fish; ribosomal DNA; ribosomal RNA; surveys; sushi; transcription (genetics); tuna; vomiting; Japan; Pacific Ocean
Abstract:
... A variety of tunas of the genus Thunnus are consumed daily in Japan as sliced raw fish (sashimi and sushi). The consumption of fresh sliced raw fish, i.e., unfrozen or uncooked, can sometimes cause food poisoning that is manifested by transient diarrhea and vomiting for a single day. One of the causes of this type of food poisoning has been identified as live Kudoa septempunctata (Myxosporea: Mult ...
DOI:
10.1007/s00436-016-5369-7