U.S. flag

An official website of the United States government

PubAg

Main content area

You searched for: Journal Journal of applied ichthyology Remove constraint Journal: Journal of applied ichthyology Publication Year 2021 Remove constraint Publication Year: 2021 Source 2021 v.37 no.1 Remove constraint Source: 2021 v.37 no.1
Start Over

Search

22  Search Results

« Previous | 1 - 20 of 22 |
Number of results to display per page

Search Results

1. Age, growth, and fishery assessment of spotted sand bass in the Northern Gulf of California, Mexico

Author:
Sammons, Steven M.
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 53-63
ISSN:
0175-8659
Subject:
Paralabrax; age determination; bass; ichthyology; marine ecosystems; models; mortality; sand; Gulf of California; Mexico; Pacific Ocean
Abstract:
... Spotted sand bass (Paralabrax maculatofasciatus) is one of the most common inshore reef fishes in the northern Gulf of California (GOC), Mexico, but has rarely been studied. Objectives of this study were to estimate age and growth parameters of this species from two areas in the northern GOC and use an age‐structured model to assess fishery yield and Spawning Potential Ratio (SPR) over a wide rang ...
DOI:
10.1111/jai.14123

2. A new species in town: New record of Hexanchus nakamurai Teng, 1962 from the Levantine Sea

Author:
Bengil, Elizabeth G. T.; Akbora, Hasan D.; Hadjioannou, Louis; Papageorgiou, Marios; Snape, Robin
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 113-119
ISSN:
0175-8659
Subject:
Cyprus; Hexanchus; Hirudinea; Loligo; Merluccius merluccius; coasts; data deficient species; embryogenesis; hake; ichthyology; new species; pregnancy; Mediterranean Sea
Abstract:
... Hexanchus nakamurai is a deep‐water species, with very little scientific information. This study confirms the distribution of the species in the most eastern region of the Mediterranean Sea, Levantine Sea, in addition to providing some biological information from four pregnant individuals, which is being reported for the first time in the Mediterranean Sea. A total of four individuals were bycaugh ...
DOI:
10.1111/jai.14125

3. Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus Mitchill, 1815) early life stage consumption evidenced by high‐throughput DNA sequencing

Author:
Bunch, Aaron J.; Carlson, Kara B.; Hoogakker, Frederick J.; Plough, Louis V.; Evans, Heather K.
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 12-19
ISSN:
0175-8659
Subject:
Acipenser oxyrinchus; Cyprinus carpio; Ictalurus furcatus; Morone saxatilis; fish; foodways; gastrointestinal system; genes; ichthyology; mitochondria; predation; ribosomal RNA
Abstract:
... Predation on early life stages of Atlantic Sturgeon Acipenser oxyrinchus oxyrinchus (ATS) may be a constraint to species recovery. Due to the difficulty in assessing consumption of early life stages with traditional diet analysis methods, we pursued an alternative DNA‐based approach. We extracted total gut content from gastrointestinal tracts of 23 fish species (593 samples) within the tidal‐fresh ...
DOI:
10.1111/jai.14153

4. Comparative feeding strategies of yellowfin tuna around St Helena and adjacent seamounts of the South Atlantic Ocean

Author:
Laptikhovsky, Vladimir; Naulaerts, Joachim; Clingham, Elizabeth; Collins, Martin A.; Cranfield, Martin; Henry, Leeann; Small, Alison; Stamford, Tammy; Xavier, Jose; Wright, Serena
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 38-52
ISSN:
0175-8659
Subject:
Chaetodon; Lagocephalus lagocephalus; Thunnus albacares; crabs; diet; ecosystems; fauna; ichthyology; piscivores; prey species; seamounts; species diversity; stomach; tuna; Atlantic Ocean; Saint Helena
Abstract:
... Yellowfin tuna are the mainstay of the traditional tuna fisheries in St Helena waters, but there is limited knowledge of their ecology and feeding behaviour in the area. In this study yellowfin tuna stomach contents were used to assess spatio‐temporal changes in feeding strategy and consider the role of tuna in the local ecosystem. Comparisons of the feeding spectra of yellowfin tuna between insho ...
DOI:
10.1111/jai.14122

5. Early development of the endemic dace Telestes karsticus (Leuciscidae, Cypriniformes) in a Dinaric karst stream in Croatia

Author:
Marčić, Zoran; Abramović, Ana; Ćaleta, Marko; Buj, Ivana; Zanella, Davor; Horvatić, Sven; Mustafić, Perica
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 99-105
ISSN:
0175-8659
Subject:
; Telestes; adults; early development; endangered species; fins; fish; ichthyology; intestines; juveniles; karsts; morphometry; mouth; streams; yolk sac; Croatia
Abstract:
... Early development of the endemic dace Telestes karsticus is described in a Dinaric karst stream in Croatia. Larvae were acquired from successful rearing in an aquarium. Basic morphometric and meristic measures of larvae were taken during 55 days of observation. The mean total length of larvae at the time of hatching was 6.45 mm. The yolk sac was completely absorbed in all larvae by day 9 post‐hatc ...
DOI:
10.1111/jai.14129

6. Effect of different calcium concentration on sperm motility and fertilisation capacity of rainbow trout (Oncorhynchus mykiss)

Author:
Sandoval‐Vargas, Leydy; Figueroa Villalobos, Elías; Contreras, Pablo; Estay, Francisco; Valdebenito Isler, Iván
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 106-112
ISSN:
0175-8659
Subject:
Oncorhynchus mykiss; blastomeres; calcium; ichthyology; semen; sperm capacitation; sperm motility; spermatozoa
Abstract:
... Calcium is a prerequisite factor for triggering the sperm activation in salmonids. The aim of this study was to test different concentrations of Ca²⁺ on sperm motility activation and fertility of rainbow trout (Oncorhynchus mykiss). Semen samples activated with calcium free activator (0.0 mM) and increasing concentrations of CaCl₂ (6.3, 7.9, 9.5 and 11 Mm) were evaluated by computer‐assisted sperm ...
DOI:
10.1111/jai.14116

7. Establishment and application of a microsatellite‐based parentage identification method for Oreochromis niloticus, O. aureus, and O. niloticus × O. aureus

Author:
Liu, Zhigang; Cao, Jianmeng; Lu, Maixin; Gao, Fengying; Ke, Xiaoli; Wang, Miao; Yi, Mengmeng
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 83-88
ISSN:
0175-8659
Subject:
Oreochromis niloticus; capillary electrophoresis; fish; fluorescent labeling; genotyping; ichthyology; microsatellite repeats; parentage; pedigree; progeny
Abstract:
... In genetic fish breeding research, clear pedigree information is of great significance for breeding and parental management. In order to establish a stable, highly accurate, and widely applicable parentage identification method for tilapia, 13 highly polymorphic microsatellite loci within populations of Oreochromis niloticus, O. aureus, O. niloticus × O. aureus, and their mixed population were scr ...
DOI:
10.1111/jai.14131

8. Genetic diversity of mitochondrial D‐LOOP sequences in the spotted scat (Scatophagus argus) from different geographical populations along the northern coast of the South China Sea

Author:
Peng, Min; Zhu, Weilin; Yang, Chunling; Yao, Jiuxiang; Chen, Huifang; Jiang, Weiming; He, Zhenhan; Li, Qiangyong; Liu, Qingyun; Zhao, Yongzhen; Lin, Yong; Chen, Xiaohan; Zeng, Digang; Chen, Xiuli
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 73-82
ISSN:
0175-8659
Subject:
Eocene epoch; Pleistocene epoch; Scatophagus argus; coasts; fisheries; genes; genetic variation; haplotypes; ichthyology; mitochondria; mutation; phylogeny; phylogeography; population growth; sympatry; South China Sea
Abstract:
... The genetic diversity of 289 spotted scat (Scatophagus argus) from seven populations along the northern coast of the South China Sea was studied by analyzing the full‐length sequences of the mitochondrial control region (D‐LOOP). The S. argus D‐LOOP sequence was 1,004–1,010 bp long and contained 156 variant sites. The seven studied S. argus populations had a high degree of genetic diversity (haplo ...
DOI:
10.1111/jai.14121

9. Improving data deficiencies in length‐weight relationships for fish species around an artificial breakwater and adjacent soft‐bottom at the central coast of Peru

Author:
Valle, Mily; Rosas‐Puchuri, Ulises; Velez‐Zuazo, Ximena
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 150-157
ISSN:
0175-8659
Subject:
coasts; fish; gender; ichthyology; morphometry; spring; summer; Peru
Abstract:
... Long‐term environmental monitoring studies includes morphometric data (length and weight) of aggregating fish species around this artificial structure and adjacent soft‐bottom habitats. We used these data, obtained biannually (summer and spring) between 2012 and 2018, to estimate population parameters such as length‐weight relationships (LWRs) for 28 species. Gender and ontogeny‐based differences ...
DOI:
10.1111/jai.14089

10. Length‐weight and length‐length relationships of three fish species from the Qingshui River in Guizhou province, Southwest China

Author:
Zhu, Xiufang; Mi, Qi
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 158-159
ISSN:
0175-8659
Subject:
; fish; ichthyology; rivers; China
Abstract:
... The present study describes the length‐weight (LWR) and length‐length (LLR) relationships for three indigenous fish species from the Qingshui River, southwestern China. Fishes were collected by electrofishing in May 2015 in the middle Qingshui River. Total length (TL), standard length (SL) and fork length (FL) were measured to the nearest 0.1 cm with a digital calliper and weight (W) was determine ...
DOI:
10.1111/jai.14096

11. Length–weight and otolith size to standard length relationships in 12 species of Southern Ocean Myctophidae: A tool for predator diet studies

Author:
Saunders, Ryan A.; Lourenço, Silvia; Vieira, Rui P.; Collins, Martin A.; Xavier, Jose C.
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 140-144
ISSN:
0175-8659
Subject:
Myctophidae; ecosystems; fish; food webs; ichthyology; morphometry; otoliths
Abstract:
... Fish morphometric relationships are key tools for fisheries science and studies of food web dynamics and predator foraging behaviour, but parameterisations are limited for Southern Ocean myctophids (Family Myctophidae). New standard length (LS) to total mass (MT) relationships are therefore described for the 12 biomass‐dominant myctophid fish species living in the Scotia Sea, Southern Ocean, using ...
DOI:
10.1111/jai.14126

12. Length‐weight relationship of coral reef‐associated fishes from Gulf of Mannar and Palk Bay, Southeast Coast of India

Author:
Kannan, Karuppiah; Kodeeswaran, Paramasivam; Kumar, Rajendran; Krishnamoorthy, Madhuri; Dharmaraj, Divya; Ethiraj, Kannapiran
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 162-164
ISSN:
0175-8659
Subject:
Canthigaster; Halichoeres; coasts; corals; fish; ichthyology; India; Indian Ocean
Abstract:
... Length‐weight relationship parameter was estimated for eight coral reef‐associated finfish species from the Gulf of Mannar and Palk Bay, Eastern Indian Ocean. Fish samples were collected from the landings of trawlers with a cod‐end mesh size of 25–35 mm, operated at a depth ranging from 50–70 m off Tuticorin, Rameswaram and Thondi coasts on monthly basis between June‐2018 and July‐2019. Fish speci ...
DOI:
10.1111/jai.14102

13. Length‐weight relationship of 74 fish species caught in the continental coast of Ecuador

Author:
Coello, D.; Herrera, M.; Zambrano, R.
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 129-134
ISSN:
0175-8659
Subject:
coasts; data collection; fish; fisheries; ichthyology; models; shrimp; traditional technology; Ecuador
Abstract:
... This work analysis the length‐weight relationships for fish species captured by artisanal fishery along the continental coast of Ecuador. Fishermen used the following fishing gear: beach seine nets (5.1–31.8 mm), shrimp trawl nets (21.8–31.8 mm) and bottom gill nets (54.1–203.2 mm). Sampling took place during the years 2012 and 2014. Frequency of sampling was monthly, and it was completed systemat ...
DOI:
10.1111/jai.14113

14. Length‐weight relationships for seven endemic fish species from streams of the last two large remaining dam‐free tributaries of the Upper Paraná River Floodplain in the Paraná State, Brazil

Author:
Frota, Augusto; Ganassin, Maria J. M.; da Graça, Weferson J.
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 145-149
ISSN:
0175-8659
Subject:
Apareiodon; Characidium; Corydoras; Hisonotus; alcohols; allometry; biodiversity conservation; fish; floodplains; formalin; ichthyology; indigenous species; rivers; Brazil
Abstract:
... This study reports the length‐weight relationships (LWR) for seven endemic fish species from streams in the Ivaí (Characidium heirmostigmata, Corydoras lacrimostigmata, Curculionichthys oliveirai, Hisonotus pachysarkos, and Cambeva horacioi) and Ivaí and Piquiri (Apareiodon vladii and Planaltina kaingang) River basins, Paraná State, Brazil. Fish specimens measured and weighed were collected betwee ...
DOI:
10.1111/jai.14127

15. Length‐weight relationships of eight fish species from the Hailang river, China

Author:
Du, Xue; Song, Dan; Wang, Huibo; Huang, Xiaoli; Liu, Hui; Huo, Tangbin
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 160-161
ISSN:
0175-8659
Subject:
fish; gillnets; ichthyology; rivers; China
Abstract:
... The present study reports the length‐weight relationships (LWRs) for eight fish species sampled in Hailang River, a left‐bank tributary of the Mudan River in Northeast China. The fishes were collected from April to October bimonthly 2017 by electrofishing (fishing 2 kilometers along the river and within 5 meters from the bank) and netting (drift gillnet: mesh size 2 cm × 3 cm; 200 m net length). T ...
DOI:
10.1111/jai.14098

16. Length–weight relationships of four fish species from Vembanad‐Kole Wetland (Kerala, India)

Author:
Roshni, Kuttanelloor; Renjithkumar, Chelapurath Radhakrishnan
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 135-136
ISSN:
0175-8659
Subject:
Channa; Hyporhamphus; fish; ichthyology; wetlands; India
Abstract:
... The length–weight relationships (LWRs) of four fish species were determined from Vembanad‐Kole Wetland, Kerala, India between June 2015 and May 2016. Fish samples were collected monthly from various fishing gears such as gill nets (50 m long and 1.5 m height, mesh sizes 30–100 mm, soaking time 8 hr) and seine nets (mesh sizes 8–16 mm). Values of the parameter b ranged from 2.896 to 3.165 and such ...
DOI:
10.1111/jai.14118

17. Length–weight relationships of six fish species from mangroves of Qinzhou Harbor, Southern China

Author:
Liu, Hao; Huang, Delian; Huang, Xin; Huang, Liangliang; Huang, Yuequn; Wu, Zhiqiang
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 137-139
ISSN:
0175-8659
Subject:
equations; fish; formaldehyde; ichthyology; China
Abstract:
... The length–weight relationships (LWRs) for six species were estimated. Fish were captured in the mangroves of Qinzhou Harbour, China, but also some specimens were purchased from fishermen. The sampling was undertaken monthly between May 2011 and April 2012 using seines (mesh size 5–10 mm; height 4 m; length 400 m) and traps (mesh size 8.5 mm; 35 cm² × 10 m for one unit) at seven sampling sites. St ...
DOI:
10.1111/jai.14119

18. Migration and distribution of adult hatchery reared Yangtze sturgeons (Acipenser dabryanus) after releasing in the upper Yangtze River and its implications for stock enhancement

Author:
Li, Junyi; Wang, Chengyou; Pan, Weiwang; Du, Hao; Zhang, Hui; Wu, Jinming; Wei, Qiwei
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 3-11
ISSN:
0175-8659
Subject:
Acipenser dabryanus; adults; anadromous fish; body length; habitats; hatcheries; humans; ichthyology; juveniles; rivers; standard deviation; telemetry; ultrasonics; Yangtze River
Abstract:
... The Yangtze sturgeon (Acipenser dabryanus) is a most important aquatic animal at the national level. Influenced by human activities such as dam constructions and overfishing, its natural population in the wild has almost disappeared. Since 2000, its natural reproduction has not been detected. In May 2018, in the Yibin reaches of the upper Yangtze River, 40 adult hatchery reared Yangtze sturgeons w ...
DOI:
10.1111/jai.14117

19. Morphological and genetic diversity of Sabanejewia balcanica (Cobitidae, Actinopterygii) in Bosnia and Herzegovina

Author:
Bajrić, Alen; Buj, Ivana; Adrović, Avdul; Hajdarević, Edina
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 89-98
ISSN:
0175-8659
Subject:
Cobitis taenia; Pleistocene epoch; Sabanejewia; genetic variation; ichthyology; morphometry; phylogeny; Bosnia-Herzegovina
Abstract:
... Taxonomic position of the Balkan spined loach, Sabanejewia balcanica (Karaman, 1922) is still uncertain. There are pronounced differences in morphological characters among individuals from different populations, which led to description of various populations as species, subspecies and clinal variation. In this investigation we aimed to describe morphological and genetic diversity of S. balcanica ...
DOI:
10.1111/jai.14130

20. Novel polymorphisms in Stearoyl‐CoA Desaturase (SCD) and Fatty Acid Desaturase 2 (FADS2) in channel catfish (Ictalurus punctatus, Rafinesque, 1818)

Author:
Mendoza‐Pacheco, Oliva; Parra‐Bracamonte, Gaspar Manuel; De la Rosa‐Reyna, Xochitl Fabiola; Sifuentes‐Rincón, Ana María; Montelongo‐Alfaro, Isidro Otoniel; Lara‐Rivera, Ana Laura
Source:
Journal of applied ichthyology 2021 v.37 no.1 pp. 120-124
ISSN:
0175-8659
Subject:
Ictalurus punctatus; biosynthesis; exons; flavor; freshwater fish; genetic improvement; ichthyology; serine; stearoyl-CoA desaturase; North America
Abstract:
... The Channel catfish is one of the most important freshwater fish species in North America. Conventionally their selection for genetic improvement is focused in growth related traits but not on quality traits as flavor and fatty acid deposition. The aim of this study was the sequencing of Stearoyl‐CoA Desaturase (SCD) and Fatty Acid Desaturase 2 (FADS2) genes, two of main genes in the biosynthesis ...
DOI:
10.1111/jai.14155