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1. A Multiplex PCR Method for Rapid Identification of Brachionus Rotifers

Author:
Vasileiadou, Kalliopi; Papakostas, Spiros; Triantafyllidis, Alexander; Kappas, Ilias; Abatzopoulos, Theodore J.
Source:
Marine biotechnology 2009 v.11 no.1 pp. 53-61
ISSN:
1436-2228
Subject:
Brachionus; DNA; biotypes; cytochrome-c oxidase; genetic polymorphism; hatcheries; polymerase chain reaction; rapid methods; Nevada
Abstract:
... Cryptic species are increasingly being recognized in many organisms. In Brachionus rotifers, many morphologically similar yet genetically distinct species/biotypes have been described. A number of Brachionus cryptic species have been recognized among hatchery strains. In this study, we present a simple, one-step genetic method to detect the presence of those Brachionus sp. rotifers that have been ...
DOI:
10.1007/s10126-008-9119-4
PubMed:
18592313

2. A comparative in-vitro-test on the digestibility of live prey for fish larvae under specific consideration of trypsin

Author:
Carmen Arndt; Ulrich Sommer; Bernd Ueberschär
Source:
Aquaculture 2015 v.446 pp. 12-16
ISSN:
0044-8486
Subject:
Acartia tonsa; Artemia; Brachionus plicatilis; Panagrolaimus; Tisbe; digestibility; digestion; fish culture; fish feeds; fish larvae; live feeds; muscles; nutrients; nutritive value; pharynx; proteolysis; rearing; teeth; trypsin
Abstract:
... When evaluating live prey for the successful rearing of fish larvae, general availability and nutritional quality of the prey are mainly in the major focus. However, the digestibility of prey items is also crucial as it directly affects the accessibility of the nutrients inside the prey item. Harpacticoid copepods, as well as nematodes, are considered as potential live feed for fish larvae but the ...
DOI:
10.1016/j.aquaculture.2015.03.033

3. A first assessment of genome size diversity in Monogonont rotifers

Author:
Stelzer, Claus-Peter
Source:
Hydrobiologia 2011 v.662 no.1 pp. 77-82
ISSN:
0018-8158
Subject:
Brachionus; Drosophila melanogaster; diploidy; erythrocytes; flow cytometry; nuclear genome; sequence analysis
Abstract:
... This study provides the first analysis of genome size diversity in Monogonont rotifers. Measurements were made using flow cytometry, with Drosophila melanogaster and chicken erythrocytes as internal standards. Nuclear DNA content (“2C”—assuming diploid genomes) in eight different species of four different genera ranged almost fourfold, from 0.12 to 0.46 pg. A comparison with previously published v ...
DOI:
10.1007/s10750-010-0487-1

4. A study on enrichment of the rotifer Brachionus “Cayman” with iodine from different sources

Author:
Ashutosh Srivastava; Kristin Hamre; Joachim Stoss; Andreas Nordgreen
Source:
Aquaculture 2012 v.334-337 no. pp. 82-88
ISSN:
0044-8486
Subject:
Brachionus; Copepoda; acids; diet; fish larvae; iodides; iodine; linear models; macroalgae; marine fish; metamorphosis; sodium; temperature; thymol
Abstract:
... Iodine is an important micronutrient for the marine fish metamorphosis and rotifers contain relatively low amounts of iodine compared to copepods, the main natural prey for marine fish larvae. In previous studies, rotifers were enriched with iodine from NaI. However, this source of iodine is poorly retained in rotifers during storage. In the present study rotifers were enriched (3h) with graded le ...
DOI:
10.1016/j.aquaculture.2011.12.025

5. A study on enrichment of the rotifer Brachionus “Cayman” with iodine and selected vitamins

Author:
Ashutosh Srivastava; Joachim Stoss; Kristin Hamre
Source:
Aquaculture 2011 v.319 no.3-4 pp. 430-438
ISSN:
0044-8486
Subject:
Brachionus; ascorbic acid; fish culture; fish feeds; fish larvae; iodine; live feeds; marine fish; nutrient content; nutrient requirements; retinyl palmitate; seed oils; thiamin; vitamin A; vitamin E; wild fish
Abstract:
... Brachionus “Cayman” is a widely used live feed organism in fish larvae culture. Our previous studies indicate that these live feeds may not fulfill the nutritional requirement of marine fish larvae. The present study aimed to enrich rotifers with the micronutrients thiamine, vitamins C, A, and E, and iodine up to the levels found in copepods, the feed for fish larvae in the wild. Various levels of ...
DOI:
10.1016/j.aquaculture.2011.07.027

6. Acute Toxicity of Gamma Radiation to the Monogonont Rotifer Brachionus koreanus

Author:
Eun-Ji Won; Jeonghoon Han; Atsushi Hagiwara; Shoji Oda; Hiroshi Mitani; Jae-Seong Lee
Source:
Bulletin of environmental contamination and toxicology 2016 v.97 no.3 pp. 387-391
ISSN:
0007-4861
Subject:
Brachionus; acute toxicity; aquatic organisms; gamma radiation; irradiation; lethal dose 50; no observed adverse effect level
Abstract:
... We examined the tolerance of the monogonont rotifer Brachionus koreanus in response to gamma radiation. In order to determine the median lethal dose (LD50) of rotifers against gamma radiation, we irradiated B. koreanus with gamma rays from 0 to 7000 grays (Gy). The LD50s were 2900 and 2300 Gy at 24 h (LD50-24 h) and 96 h (LD50-96 h) after irradiation, respectively. In addition, the no observed eff ...
DOI:
10.1007/s00128-016-1843-2

7. Adverse Effects, Expression of the Bk-CYP3045C1 Gene, and Activation of the ERK Signaling Pathway in the Water Accommodated Fraction-Exposed Rotifer

Author:
Won Eun-Ji; Kim Ryeo-Ok; Kang Hye-Min; Kim Hui-Su; Hwang Dae-Sik; Han Jeonghoon; Lee Young Hwan; Hwang Un-Ki; Zhou Bingsheng; Lee Su-Jae; Lee Jae-Seong
Source:
Environmental Science & Technology 2016 v.50 no.11 pp. 6025-6035
ISSN:
1520-5851
Subject:
petroleum; piperonyl butoxide; glutathione; dose response; longevity; oxidative stress; phenanthrenes; microarray technology; fecundity; glutathione transferase; mitogen-activated protein kinase; reactive oxygen species; signal transduction; cytochrome P-450; genes; toxicity; naphthalene; Brachionus; adverse effects; ABC transporters
Abstract:
... To examine the deleterious effects of the water accommodated fraction (WAF) of crude oil, the growth curve, fecundity, and lifespan of the monogonont rotifer (Brachionus koreanus) were measured for 24 h in response to three different doses (0.2×, 0.4×, and 0.8×) of WAFs. A higher dose of WAFs significantly reduced the fecundity and lifespan. A rotifer 32K microarray chip showed that the Bk-CYP3045 ...
DOI:
10.1021/acs.est.6b01306

8. Adverse effects of BDE-47 on life cycle parameters, antioxidant system, and activation of MAPK signaling pathway in the rotifer Brachionus koreanus

Author:
Jun Chul Park; Jeonghoon Han; Min-Chul Lee; Hye-Min Kang; Chang-Bum Jeong; Dae-Sik Hwang; Minghua Wang; Jae-Seong Lee
Source:
Aquatic toxicology 2017 v.186 pp. 105-112
ISSN:
0166-445X
Subject:
reactive oxygen species; signal transduction; genes; population growth; mitogen-activated protein kinase; oxidative stress; aquatic ecosystems; adults; longevity; fecundity; glutathione transferase; toxicology; transcriptome; databases; endocrine-disrupting chemicals; oxidants; antioxidant activity; Brachionus; adverse effects; aquatic organisms; glutathione-disulfide reductase
Abstract:
... 2,2′,4,4′-Tetrabromodiphenyl ether (BDE-47) is widely dispersed endocrine disrupting chemicals (EDCs) in the aquatic ecosystem. Due to its devastating effect on marine organisms and insufficient database on toxicology, we investigated the adverse effects of BDE-47 on life parameters and antioxidant defense system following the reactive oxygen species (ROS) production in the monogonont rotifer Brac ...
DOI:
10.1016/j.aquatox.2017.02.025

9. Adverse effects of methylmercury (MeHg) on life parameters, antioxidant systems, and MAPK signaling pathways in the rotifer Brachionus koreanus and the copepod Paracyclopina nana

Author:
Young Hwan Lee; Duck-Hyun Kim; Hye-Min Kang; Minghua Wang; Chang-Bum Jeong; Jae-Seong Lee
Source:
Aquatic toxicology 2017 v.190 pp. 181-189
ISSN:
0166-445X
Subject:
Brachionus; Copepoda; adverse effects; antioxidant genes; antioxidants; catalase; defense mechanisms; dose response; enzyme activity; fecundity; glutathione; glutathione peroxidase; glutathione transferase; glutathione-disulfide reductase; growth retardation; methylmercury compounds; mitogen-activated protein kinase; signal transduction; superoxide dismutase; survival rate; toxicity
Abstract:
... To evaluate the adverse effects of MeHg on the rotifer Brachionus koreanus and the copepod Paracyclopina nana, we assessed the effects of MeHg toxicity on life parameters (e.g. growth retardation and fecundity), antioxidant systems, and mitogen-activated protein kinase (MAPK) signaling pathways at various concentrations (1ng/L, 10ng/L, 100ng/L, 500ng/L, and 1000ng/L). MeHg exposure resulted in the ...
DOI:
10.1016/j.aquatox.2017.07.006

10. Alleviation of tributyltin-induced toxicity by diet and microplastics in the marine rotifer Brachionus koreanus

Author:
Deok-Seo Yoon; Yoseop Lee; Jun Chul Park; Min-Chul Lee; Jae-Seong Lee
Source:
Journal of hazardous materials 2021 v.402 pp. 123739
ISSN:
0304-3894
Subject:
Brachionus; diet; fecundity; longevity; microplastics; nutritional status; progeny; reactive oxygen species; toxicity; tributyltin
Abstract:
... To determine the effects of tributyltin (TBT) upon multiple exposures of diet and microplastic in rotifer, in vivo life parameters were measured. In 10 μg/L TBT-exposed rotifer, the 1 and 0.5 x diet groups resulted in reproduction reduction. However, 10 x diet treatment showed no significant changes in the total fecundity, despite a decrease in daily reproduction. Besides, differences in the lifes ...
DOI:
10.1016/j.jhazmat.2020.123739

11. An environmentally friendly approach for mitigating cyanobacterial bloom and their toxins in hypereutrophic ponds: Potentiality of a newly developed granular hydrogen peroxide-based compound

Author:
Amit Kumar Sinha; Michael A. Eggleton; Rebecca T. Lochmann
Source:
Science of the total environment 2018 v.637-638 pp. 524-537
ISSN:
0048-9697
Subject:
Brachionus; Cladophora; Daphnia; Planktothrix; Spirogyra; Synedra; active ingredients; dose response; human health; hydrogen; hydrogen peroxide; longevity; microcystins; phytoplankton; ponds; sodium carbonate; tanks; toxicity; water quality; zooplankton
Abstract:
... Cyanobacterial blooms and their associated toxins are growing issues for many aquatic resources, and pose a major threat to human health and ecological welfare. To control cyanobacterial blooms and their toxins, the efficacy of a newly developed granular compound (sodium carbonate peroxyhydrate ‘SCP’, trade name ‘PAK® 27’ algaecide) containing hydrogen peroxide (H2O2) as the active ingredient was ...
DOI:
10.1016/j.scitotenv.2018.05.023

12. Analysing threshold effects in the sexual dynamics of cyclically parthenogenetic rotifer populations

Author:
Serra, M.; Smith, H. A.; Weitz, J. S.; Snell, T. W.
Source:
Hydrobiologia 2011 v.662 no.1 pp. 121-130
ISSN:
0018-8158
Subject:
Brachionus; females; models; parthenogenesis; population density; progeny
Abstract:
... Sex in some cyclically parthenogenetic rotifers is triggered when a threshold population density is achieved. In Brachionus, accumulation of a mixis-inducing protein (MIP) that the rotifers excrete into the medium is the proximal signal. Models explicitly accounting for MIP dynamics suggest that either (1) a positive feedback of MIP concentration on MIP production or (2) a switching relationship b ...
DOI:
10.1007/s10750-010-0517-z

13. Application of Biotests in Cyanobacterial Extract Toxicity Assessment

Author:
Anna Sierosławska; Anna Rymuszka; Tadeusz Skowroński
Source:
Archives of environmental protection 2014 v.40 no.3 pp. 115-121
ISSN:
2083-4810
Subject:
Anabaena; Aphanizomenon; Brachionus; Daphnia magna; Microcystis aeruginosa; Planktothrix agardhii; Tetrahymena thermophila; acute toxicity; bioassays; microcystin-LR; neurotoxins
Abstract:
... The aim of the study was to determine the toxicity of the extract obtained from the cyanobacterial cells derived from the waters of Zemborzycki dam reservoir with use of a battery of biotests. The taxonomic identification of the bloom-forming cyanobacteria revealed high abundance of Aphanizomenon flos-aquae and Dolichospermum spp. (Anabaena spp.) and in a lower degree of Microcystis aeruginosa and P ...
DOI:
10.2478/aep-2014-0028

14. Appropriate food type, feeding schedule and Artemia density for the zoea larvae of the mud crab, Scylla tranquebarica (Crustacea:Decapoda:Portunidae)

Author:
Baylon, Juliana C.
Source:
Aquaculture 2009 v.288 no.3-4 pp. 190-195
ISSN:
0044-8486
Subject:
Portunidae; crabs; crab culture; mortality; animal development; metamorphosis; animal feeding; live feeds; Rotifera; Artemia
Abstract:
... Scylla tranquebarica is an edible portunid crab with high commercial value. To develop hatchery techniques for juvenile production, the feeding requirements of the larvae were investigated. Experiments were carried out to identify food preferences, feeding schedule and optimum prey density. Larval diets of rotifer Brachionus sp, brine shrimp Artemia sp nauplii, and a combination of both were provi ...
DOI:
10.1016/j.aquaculture.2008.11.028

15. Assessing toxicity of nanoparticles using Brachionus manjavacas (Rotifera)

Author:
Snell, Terry W.; Hicks, Daniel G.
Source:
Environmental toxicology 2011 v.26 no.2 pp. 146-152
ISSN:
1520-4081
Subject:
Brachionus; adverse effects; animals; at-risk population; chemical composition; digestive system; ecosystems; feeding behavior; females; indicator species; lakes; nanoparticles; population growth; progeny; toxicity
Abstract:
... Rotifers are major components of zooplankton in freshwater and coastal marine ecosystems throughout the world and could be useful indicator species, providing valuable insight into the effects of nanoparticles on microinvertebrate grazers. Here we report initial efforts to characterize the immediate and longer-term effects of nanoparticle exposure on the reproduction of the coastal marine and salt ...
DOI:
10.1002/tox.20538
PubMed:
19760615

16. Association of clonal diversity and population growth in the small-type rotifer Brachionus koreanus during hatchery mass production

Author:
Eitaro Sawayama; Wilma Moka; Daiki Noguchi; Motohiro Takagi
Source:
Aquaculture 2016 v.465 pp. 296-302
ISSN:
0044-8486
Subject:
Brachionus; DNA; clones; cytochrome-c oxidase; genes; genetic markers; haplotypes; hatcheries; microsatellite repeats; mitochondria; population growth; sexual reproduction
Abstract:
... In this study, we identify clones of S-type rotifers Brachionus koreanus based on haplotypes of mitochondrial gene cytochrome c oxidase subunit I (mtCOI) and microsatellite DNA genotypes. We then study how clonal diversity affects the population growth of rotifers in a mass culture at a hatchery using a lot of B. koreanus rotifers for analysis. Microsatellite DNA markers were also developed to ide ...
DOI:
10.1016/j.aquaculture.2016.09.020

17. Binary mixture toxicities of triphenyltin with tributyltin or copper to five marine organisms: Implications on environmental risk assessment

Author:
Xianliang Yi; Vivien W.W. Bao; Kenneth M.Y. Leung
Source:
Marine pollution bulletin 2017 v.124 no.2 pp. 839-846
ISSN:
0025-326X
Subject:
Brachionus; Oryzias melastigma; Skeletonema costatum; Thalassiosira; Tigriopus japonicus; acute toxicity; aquatic organisms; coastal water; copper; environmental assessment; models; risk assessment; tributyltin
Abstract:
... Triphenyltin (TPT) often coexists with tributyltin (TBT) and Cu in coastal waters worldwide. The combined toxic effect of TPT and TBT has always been assumed to be additive without any scientific proof, and the combined effect of Cu and TPT on marine organisms has not been vigorously studied. This study, therefore, investigated the acute toxicity of binary mixture of TPT/Cu and TPT/TBT to five sel ...
DOI:
10.1016/j.marpolbul.2017.02.031

18. Biodiverse rotifer assemblage (Rotifera: Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India: composition and ecosystem diversity

Author:
Bhushan Kumar Sharma; Shaikhul Islam Khan; Sumita Sharma
Source:
Journal of oceanology and limnology 2018 v.36 no.2 pp. 362-375
ISSN:
2096-5508
Subject:
Brachionus; basins; biodiversity; biogeography; ecosystems; environmental factors; floodplains; habitats; lakes; macrophytes; plankton; watersheds; wetlands; India
Abstract:
... The study aims to ascertain the hypothesis on the rich rotifer biodiversity of the floodplain lakes (beels) of the Brahmaputra river basin and to use these metazoans to assess trophic status or to characterize habitat variations of wetlands. The plankton samples collected from four beels of lower Assam revealed 160 Rotifera species belonging to 35 genera and 19 families. The richness is of biodive ...
DOI:
10.1007/s00343-017-6251-x

19. Biological indicators of ecological quality in typical urban river-lake ecosystems: The planktonic rotifer community and its response to environmental factors

Author:
Diwen Liang; Qing Wang; Nan Wei; Changkuan Tang; Xian Sun; Yufeng Yang
Source:
Ecological indicators 2020 v.112 pp. 106127
ISSN:
1470-160X
Subject:
Brachionus; biodiversity; ecosystems; lakes; rivers; surveys; temperature; trophic levels; water quality; zooplankton; China
Abstract:
... River-lake system is the framework of the “sponge city”, tackling urban water problems of flooding. Rotifers, an essential zooplankton component of water ecosystems, are sensitive to environmental changes. However, the utility of rotifers as indicators of water quality in urban river-lake ecosystems is still unclear. We investigated the response of rotifer community to environmental factors and ev ...
DOI:
10.1016/j.ecolind.2020.106127

20. Brachionus leydigii (Monogononta: Ploima) reported from the western basin of Lake Erie

Author:
J.K. Connolly; J.M. Watkins; C.C. Marshall; J.M. Adams; L.G. Rudstam; L.A. Błędzki
Source:
Journal of Great Lakes research 2018 pp. -
ISSN:
0380-1330
Subject:
Brachionus; Cladocera; Copepoda; Monogononta; basins; invertebrates; monitoring; zooplankton; Lake Erie
Abstract:
... Several species of non-indigenous planktonic invertebrates have historically been introduced to the Laurentian Great Lakes. Previous introductions of non-indigenous planktonic invertebrates to the Great Lakes have been crustacean zooplankton, specifically Cladocera and Copepoda. This report documents the first known occurrence of Brachionus leydigii var. tridentatus (Zernov, 1901) in Lake Erie and ...
DOI:
10.1016/j.jglr.2018.07.010
PubMed:
30416249
PubMed Central:
PMC6223180

21. Captive Propagation, Reproductive Biology, and Early Life History of the Diamond Darter (Crystallaria cincotta)

Author:
Ruble Crystal L; Rakes Patrick L; Shute John R; Welsh Stuart A
Source:
American midland naturalist 2014 v.172 no.1 pp. 107-118
ISSN:
0003-0031
Subject:
Artemia; Brachionus; Ceriodaphnia dubia; Crystallaria; absorption; cannibalism; captive animals; eggs; females; fish; larvae; life history; males; neonates; powdered foods; rare species; rivers; sand; spawning; teeth; water temperature; yolk sac; West Virginia
Abstract:
... Reproductive biology and early life history data are critical for the conservation and management of rare fishes. During 2008–2012 a captive propagation study was conducted on the Diamond Darter, Crystallaria cincotta, a rare species with a single extant population in the lower Elk River, West Virginia. Water temperatures during spawning ranged from 11.1–23.3 C. Females and males spawned with quic ...
DOI:
10.1674/0003-0031-172.1.107

22. Captive spawning, early development and larviculture of the dwarf hawkfish, Cirrhitichthys falco () with experimental evaluation of the effects of temperature, salinity and initial prey on hatching success and first feeding

Author:
Pei-Sheng Chiu; Ming-Yih Leu
Source:
Aquaculture 2021 v.542 pp. 736866
ISSN:
0044-8486
Subject:
Brachionus; Ciliophora; captive animals; digestive system; early development; egg membranes; fecundity; fins; head; larval development; larviculture; males; nauplii; neuromasts; oils; salinity; trade; water temperature; yolk sac
Abstract:
... The dwarf hawkfish, Cirrhitichthys falco is one of the popular species in the aquarium trade. However, the limited breeding resources nowadays available represent a clear limitation towards the rearing of this species. The aim of this study was to report the successful results on natural spawning of C. falco, a description of embryonic and larval development stages and appropriate rearing conditio ...
DOI:
10.1016/j.aquaculture.2021.736866

23. Carbon assimilation mode in mixotrophs and the fatty acid composition of their rotifer consumers

Author:
WACKER, ALEXANDER; WEITHOFF, GUNTRAM
Source:
Freshwater biology 2009 v.54 no.11 pp. 2189-2199
ISSN:
0046-5070
Subject:
Brachionus; Chlamydomonas; alpha-linolenic acid; carbon; diet; ecophysiology; eicosapentaenoic acid; fatty acid composition; glucose; omega-3 fatty acids
Abstract:
... 1. We examined an important ecophysiological link between the mixotrophic flagellate Chlamydomonas acidophila and its consumers, the rotifers Elosa worallii, Cephalodella sp. and Brachionus sericus, by comparing their fatty acid profiles. 2. The mixotrophic flagellate was grown under either exclusively autotrophic conditions in the light, under exclusively heterotrophic conditions in the dark with ...
DOI:
10.1111/j.1365-2427.2009.02251.x

24. Combined effects of sediment and lead (PbCl₂) on the demography of Brachionus patulus (Rotifera: Brachionidae)

Author:
García-García, G.; Picazo-Paez, E. A.; Nandini, S.; Sarma, S. S. S.
Source:
Hydrobiologia 2007 v.593 no.1 pp. 209-218
ISSN:
0018-8158
Subject:
Brachionus patulus; Chlorella vulgaris; adverse effects; confidence interval; demography; eggs; fecundity; heavy metals; lead; lethal concentration 50; life tables; longevity; population density; population growth; progeny; reproductive performance; sediments; survival rate; turbidity
Abstract:
... We studied the response of Brachionus patulus to different concentrations of the heavy metal Pb in the presence and absence of sediments. We conducted acute (LC₅₀) and chronic (life table demography and population growth) toxicity tests using sediment levels of 0, 30 and 280 mg l-¹ (=0, 17 and 170 NTU) and Pb at 0, 0.06 and 0.6 mg l-¹. Experiments were conducted at 20 ± 1°C on a horizontal shaker ...
DOI:
10.1007/s10750-007-9039-8

25. Comparative analysis of rotifer community structure in five subtropical shallow lakes in East China: role of physical and chemical conditions

Author:
Xin-Li Wen; Yi-Long Xi; Fang-Ping Qian; Gen Zhang; Xian-Ling Xiang
Source:
Hydrobiologia 2011 v.661 no.1 pp. 303-316
ISSN:
0018-8158
Subject:
Brachionus; biogeography; community structure; lakes; pollution load; species diversity; water temperature; China
Abstract:
... Worldwide, there have been few comparative studies on rotifer communities in subtropical lakes. We studied changes in rotifer community structure over 1 year and its relationship to several physicochemical variables in five subtropical shallow lakes in East China, covering a nutrient gradient from mesotrophy to moderate eutrophy. In these lakes, the genera Brachionus, Lecane, and Trichocerca domin ...
DOI:
10.1007/s10750-010-0539-6

26. Comparative genome analysis of the monogonont marine rotifer Brachionus manjavacas Australian strain: Potential application for ecotoxicology and environmental genomics

Author:
Jordan Jun Chul Park; Duck-Hyun Kim; Min-Sub Kim; Alaa El-Din H. Sayed; Atsushi Hagiwara; Un-Ki Hwang; Heum Gi Park; Jae-Seong Lee
Source:
Marine pollution bulletin 2022 v.180 pp. 113752
ISSN:
0025-326X
Subject:
Brachionus; ecotoxicology; freshwater; genes; genomics; marine pollution; nanopores; sequence analysis
Abstract:
... This is the first study to analyze the whole-genome sequence of B. manjavacas Australian (Aus.) strain through combination of Oxford Nanopore long-read seq, resulting in a total length of 108.1 Mb and 75 contigs. Genome-wide detoxification related gene families in B. manjavacas Aus. strain were comparatively analyzed with those previously identified in other Brachionus spp., including B. manjavaca ...
DOI:
10.1016/j.marpolbul.2022.113752

27. Comparison of resting egg gene expression with different hatchability related to salinity variations in the marine rotifer Brachionus manjavacas

Author:
Chengyan Han; Hee-Jin Kim; Koushirou Suga; Mingyou Li; Atsushi Hagiwara
Source:
Fisheries science 2018 v.84 no.4 pp. 663-669
ISSN:
0919-9268
Subject:
ABC transporters; Brachionus; NAD (coenzyme); adenosinetriphosphatase; alpha-amylase; cell differentiation; egg hatchability; eggs; embryogenesis; energy; environmental factors; euryhaline species; gene expression; genes; hatching; salinity; salt stress; transcription factors
Abstract:
... Salinity is a significant factor in affecting resting egg hatching in the euryhaline rotifers. In order to clarify the effects of salinity on resting egg hatchability, this study investigated gene expressions of resting eggs subjected to two different incubation salinities (at 17 and 33 ppt) in the rotifer Brachionus manjavacas. The resting eggs formed at 17 ppt showed a higher hatching rate at 17 ...
DOI:
10.1007/s12562-018-1213-6

28. Conservation of progesterone hormone function in invertebrate reproduction

Author:
Stout, E. Paige; La Clair, James J.; Snell, Terry W.; Shearer, Tonya L.; Kubanek, Julia
Source:
Proceedings of the National Academy of Sciences of the United States of America 2010 v.107 no.26 pp. 11859-11864
ISSN:
0027-8424
Subject:
Brachionus; arthropods; image analysis; mammals; progesterone; receptors; reproduction; sexual behavior; signal transduction; steroids
Abstract:
... Steroids play fundamental roles regulating mammalian reproduction and development. Although sex steroids and their receptors are well characterized in vertebrates and several arthropod invertebrates, little is known about the hormones and receptors regulating reproduction in other invertebrate species. Evolutionary insights into ancient endocrine pathways can be gained by elucidating the hormones ...
DOI:
10.1073/pnas.1006074107
PubMed:
20547846
PubMed Central:
PMC2900687

29. Correlation between the DNA methyltransferase (Dnmt) gene family and genome-wide 5-methylcytosine (5mC) in rotifer, copepod, and fish

Author:
Bo-Mi Kim; Leda Mirbahai; Angela Mally; J. Kevin Chipman; Jae-Sung Rhee; Jae-Seong Lee
Source:
Genes & genomics 2016 v.38 no.1 pp. 13-23
ISSN:
1976-9571
Subject:
Brachionus; DNA; Kryptolebias marmoratus; Tigriopus japonicus; epigenetics; evolution; fish; genes; metabolism; methyltransferases
Abstract:
... DNA methyltransferases (DNMTs) are an enzyme family that catalyzes the transfer of a methyl group to DNA for a wide variety of biological functions. To determine whether the number and composition of the Dnmt gene family affects the 5-methylcytosine (5mc) ratio at the genome level, genome-wide 5mc ratios from three marine animals, the mangrove killifish (Kryptolebias marmoratus), an intertidal cop ...
DOI:
10.1007/s13258-015-0333-y

30. Correspondence of zooplankton assemblage and water quality in wetlands of Cachar, Assam, India: Implications for environmental management

Author:
Sulata Kar; Papia Das; Uma Das; Maibam Bimola; Devashish Kar; Gautam Aditya
Source:
Limnological review 2018 v.18 no.1 pp. 9-19
ISSN:
2300-7575
Subject:
Brachionus; Cladocera; Mesocyclops; Ostracoda; alkalinity; calcium; cluster analysis; community structure; correspondence analysis; environmental management; food webs; freshwater; habitats; hardness; magnesium; monitoring; phosphates; turbidity; water quality; water temperature; wetlands; zooplankton; India
Abstract:
... The zooplankton assemblage of selected wetlands of Assam, India was assessed to deduce the structural variation in the context of water quality parameters. A two year study between 2012 and 2014 comprising of 530 samples from the five wetlands revealed the presence of 46 taxa, 26 Rotifera, 15 Cladocera, 4 Copepoda and 1 Ostracoda, in varying density. The rotifers dominated in terms of abundance (4 ...
DOI:
10.2478/limre-2018-0002

31. Cross-reactivities of mammalian MAPKs antibodies in rotifer and copepod: Application in mechanistic studies in aquatic ecotoxicology

Author:
Hye-Min Kang; Chang-Bum Jeong; Young Hwan Lee; Yan-Hong Cui; Duck-Hyun Kim; Min-Chul Lee; Hui-Su Kim; Jeonghoon Han; Dae-Sik Hwang; Su-Jae Lee; Jae-Seong Lee
Source:
Marine pollution bulletin 2017 v.124 no.2 pp. 614-623
ISSN:
0025-326X
Subject:
Brachionus; Paracyclopina nana; Tigriopus japonicus; Western blotting; antibodies; carbon nanotubes; ecotoxicology; epitopes; genes; invertebrates; mammals; mitogen-activated protein kinase; petroleum; phylogeny; plastics; pollutants; signal transduction; water pollution
Abstract:
... The mitogen-activated protein kinases (MAPKs) family is known to mediate various biological processes in response to diverse environmental pollutants. Although MAPKs are well characterized and studied in vertebrates, in invertebrates the cross-reactivities of MAPKs antibodies were not clearly known in response to environmental pollutants due to limited information of antibody epitopes with materia ...
DOI:
10.1016/j.marpolbul.2016.11.049

32. DNA barcoding of freshwater zooplankton in Lake Kasumigaura, Japan

Author:
Wataru Makino; Natsumi Maruoka; Megumi Nakagawa; Noriko Takamura
Source:
Ecological research 2017 v.32 no.4 pp. 481-493
ISSN:
0912-3814
Subject:
Brachionus; Copepoda; DNA barcoding; DNA libraries; Daphnia; algorithms; barcoding; cytochrome-c oxidase; ecosystems; haplotypes; lakes; mitochondria; monitoring; zooplankton; Japan
Abstract:
... Although DNA barcoding is a promising tool for the identification of organisms, it requires the development of a specific reference sequence library for sample application. In the present study we developed a Lake Kasumigaura, Japan, zooplankton DNA barcode library to increase the sensitivity of future zooplankton monitoring for detecting lake ecosystem condition changes. Specifically, the mitocho ...
DOI:
10.1007/s11284-017-1458-z

33. Demographic and competition studies on Brachionus ibericus and Proales similis in relation to salinity and algal (Nannochloropsis oculata) density

Author:
Uriel Arreguin Rebolledo; S. Nandini; S. S. S. Sarma; José Cristóbal Román Reyes; Gustavo Alejandro Rodríguez Montes de Oca
Source:
Aquaculture international 2018 v.26 no.2 pp. 629-644
ISSN:
0967-6120
Subject:
Brachionus; Nannochloropsis; algae; aquaculture; fecundity; life history; life tables; longevity; neonates; population growth; salinity; sediments; shrimp; survival rate; tanks
Abstract:
... We isolated the rotifers Brachionus ibericus and Proales similis from the sediment of shrimp tanks and studied their individual demographic characters and competition between them at two food levels (0.25 × 10⁶, 1.00 × 10⁶ cells ml⁻¹ of Nannochloropsis oculata at 25 °C) and salinities ranging from 10 to 30‰. Our hypothesis was that growth rates would be higher with increasing food levels and salin ...
DOI:
10.1007/s10499-017-0233-z

34. Denaturing Gradient Gel Electrophoresis (DGGE) as a tool for the characterisation of Brachionus sp. strains

Author:
Dooms, S.; Papakostas, S.; Hoffman, S.; Delbare, D.; Dierckens, K.; Triantafyllidis, A.; De Wolf, T.; Vadstein, O.; Abatzopoulos, T.J.; Sorgeloos, P.
Source:
Aquaculture 2007 v.262 no.1 pp. 29-40
ISSN:
0044-8486
Subject:
live feeds; Rotifera; zooplankton; mitochondrial DNA; ribosomal RNA; genetic variation; polymerase chain reaction; fish culture; denaturing gradient gel electrophoresis
Abstract:
... Many zooplanktonic organisms, like the cyclic parthenogenetic rotifer Brachionus plicatilis (Rotifera: Monogononta), are actually a complex of species and biotypes with a high degree of morphological similarity (i.e. cryptic species). Various phylogenetic studies with molecular markers (e.g. ITS1 and COI) on wild Brachionus populations described the presence of at least nine genetically divergent ...
DOI:
10.1016/j.aquaculture.2006.10.001

35. Determining live prey preferences of larval ornamental marine fish utilizing fluorescent microspheres

Author:
Isaac S. Lee; Cortney L. Ohs; Jason S. Broach; Matthew A. DiMaggio; Craig A. Watson
Source:
Aquaculture 2018 v.490 pp. 125-135
ISSN:
0044-8486
Subject:
Brachionus; Chaetodon; Ciliophora; Copepoda; Gnathanodon speciosus; Monodactylus; Paracanthurus; aquaculture; aquariums; color; fisheries; fluorescence; invertebrates; marine fish; microparticles; nauplii; oceans; ornamental fish; protocols
Abstract:
... As the popularity of marine aquaria grows, the potential exists for increased harvest of marine ornamental fishes and invertebrates from the oceans around the world. Aquaculture may be an alternative source to wild capture fisheries if commercial production protocols can be developed for species of interest, however numerous impediments must be overcome. Experiments were conducted on the reef butt ...
DOI:
10.1016/j.aquaculture.2018.01.035

36. Development and use of a zooplankton index of wetland quality in the laurentian great lakes basin

Author:
Vanessa L. Lougheed; Patricia Chow-Fraser
Source:
Ecological applications 2002 v.12 no.2 pp. 474-486
ISSN:
1051-0761
Subject:
Brachionus; Moina; aquatic plants; carp; correspondence analysis; ecosystems; environmental monitoring; habitats; marshes; species diversity; vegetation; water quality; zooplankton; Great Lakes
Abstract:
... Recent interest in biological monitoring as an ecosystem assessment tool has stimulated the development of a number of biotic indices designed to aid in the evaluation of ecosystem integrity; however, zooplankton have rarely been included in biomonitoring schemes. We developed a wetland zooplankton index (WZI) based on water quality and zooplankton associations with aquatic vegetation (emergent, s ...
DOI:
10.1890/1051-0761(2002)012[0474:DAUOAZ]2.0.CO;2

37. Divergent responses in morphology and life history to an Asplanchna kairomone between attached and free-swimming Brachionus dorcas (Rotifera)

Author:
Shan Jiang; Yan Bai; Fan Sun; Le-Le Ge; Yi-Long Xi
Source:
Hydrobiologia 2021 v.848 no.8 pp. 1925-1937
ISSN:
0018-8158
Subject:
Brachionus; kairomones; life history; population growth; predation; progeny
Abstract:
... In the presence of the predatory rotifer Asplanchna, some Brachionus and Keratella species develop inducible morphological, behavioral, and life history defenses that enable prey to survive predation pressure. However, whether clones belonging to the same rotifer species but with different behaviors (attached and free-swimming) exhibit divergent responses in morphology and life history remains lar ...
DOI:
10.1007/s10750-021-04572-3

38. Do genome size differences within Brachionus asplanchnoidis (Rotifera, Monogononta) cause reproductive barriers among geographic populations?

Author:
Simone Riss; Wolfgang Arthofer; Florian M. Steiner; Birgit C. Schlick-Steiner; Maria Pichler; Peter Stadler; Claus-Peter Stelzer
Source:
Hydrobiologia 2017 v.796 no.1 pp. 59-75
ISSN:
0018-8158
Subject:
Brachionus; Monogononta; amplified fragment length polymorphism; clones; eggs; gene flow; genome; hybrids; males; parents; population growth; population structure; progeny; reproductive isolation
Abstract:
... Genome size in the rotifer Brachionus asplanchnoidis, which belongs to the B. plicatilis species complex, is greatly enlarged and extremely variable (205–407 Mbp). Such variation raises the question whether large genome size differences among individuals might cause reproductive barriers, which could trigger speciation within this group by restricting gene flow across populations. To test this hyp ...
DOI:
10.1007/s10750-016-2872-x

39. Dynamics and Control Mechanisms in a Tropical Zooplankton Community (Lake Valencia, Venezuela)

Author:
James F. Saunders; William M. Lewis
Source:
Ecological monographs 1988 v.58 no.4 pp. 337-353
ISSN:
0012-9615
Subject:
Brachionus; Chaoborus; Cladocera; Copepoda; adults; algae; biomass; carnivores; environmental factors; eutrophication; food quality; herbivores; lakes; mixing; mortality; predation; predators; primary productivity; reproductive performance; zooplankton; Venezuela
Abstract:
... The dynamics of zooplankton herbivores in Lake Valencia, Venezuela, were studied over a 5—yr interval. Lake Valencia is a large, warm—monomictic, eutrophic lake. Copepods were the dominant group; rotifers were more abundant than the cladocerans, which were not present in all years. Variation between years in herbivore biomass bore no statistical relationship to patterns in algal biomass. The avera ...
DOI:
10.2307/1942544

40. Early expansion and expression of the lipopolysaccharide (LPS)-induced TNF-α factor (LITAF) gene family in the LPS-exposed monogonont rotifer Brachionus koreanus

Author:
Chang-Bum Jeong; Jeong-Hyeon Lee; Jae-Seong Lee; Jae-Sung Rhee
Source:
Comparative Biochemistry and Physiology, Part B 2015 v.188 pp. 15-23
ISSN:
1096-4959
Subject:
Brachionus; amino acid sequences; enzyme activity; gene expression regulation; genes; glutathione; innate immunity; lipopolysaccharides; oxidative stress; phylogeny; transcription (genetics); tumor necrosis factor-alpha
Abstract:
... To date, a single lipopolysaccharide-induced TNF-α factor (LITAF) homologue, mediating the expression of inflammatory cytokines including TNF-α in terms of host defense was identified in vertebrates and most invertebrates such as insects, mollusks, and crustaceans. However, LITAF gene family members have recently been characterized in only two mollusks, Crassostrea gigas and Mytilus galloprovincia ...
DOI:
10.1016/j.cbpb.2015.06.001

41. Ecological effects of imidacloprid on a tropical freshwater ecosystem and subsequent recovery dynamics

Author:
Lemessa B. Merga; Paul J. Van den Brink
Source:
Science of the total environment 2021 v.784 pp. 147167
ISSN:
0048-9697
Subject:
Brachionus; Caenis; acute toxicity; chlorophyll; community structure; environment; freshwater ecosystems; imidacloprid; macroinvertebrates; median effective concentration; organic matter; periphyton; phytoplankton; toxicity testing; tropics; zooplankton; Ethiopia
Abstract:
... This study aimed to investigate the effect of imidacloprid on structural (invertebrates and primary producers) and functional (organic matter decomposition and physicochemical parameters) characteristics of tropical freshwaters using acute single species and mesocosm studies performed in Ethiopia. The recovery of affected endpoints was also studied by using a mesocosm study period of 21 weeks. Our ...
DOI:
10.1016/j.scitotenv.2021.147167

42. Effect of algal and bacterial diet on metal bioaccumulation in zooplankton from the Pearl River, South China

Author:
Shengxing Long; Paul B. Hamilton; Henri J. Dumont; Li Rong; Zhongxing Wu; Chuan Chen; Yun Guo; Jinbeng Tang; Jingjing Fan; Can Li; Ting Zhang
Source:
Science of the total environment 2019 v.675 pp. 151-164
ISSN:
0048-9697
Subject:
Bacillariophyceae; Brachionus; Chlorophyceae; Cryptophyceae; Diaphanosoma; Euglenophyceae; algae; alpha-linolenic acid; aquatic environment; arsenic; bacteria; bioaccumulation; biomarkers; cadmium; chromium; cobalt; copper; diet; docosahexaenoic acid; eicosapentaenoic acid; iron; lead; manganese; oleic acid; palmitoleic acid; particulates; phytoplankton; rivers; stearic acid; trophic levels; zinc; zooplankton; China
Abstract:
... The biomagnification of metals (Cd, Co, Cr, Cu, Fe, Mn, Pb and Zn) and the metalloid As in aquatic systems is a global health concern. In this study, concentrations of fatty acid biomarkers in zooplankton were analyzed from the Pearl River, South China between September 2016 and July 2017. The objective was to examine how particulate matter, algae and bacteria food sources affect metal bioaccumula ...
DOI:
10.1016/j.scitotenv.2019.04.141

43. Effect of copper exposure on GST activity and on the expression of four GSTs under oxidative stress condition in the monogonont rotifer, Brachionus koreanus

Author:
Jeonghoon Han; Eun-Ji Won; Dae-Sik Hwang; Jae-Sung Rhee; Il-Chan Kim; Jae-Seong Lee
Source:
Comparative Biochemistry and Physiology, Part C 2013 v.158 pp. 91-100
ISSN:
1532-0456
Subject:
glutathione; glutathione-disulfide reductase; copper; biomarkers; glutathione transferase; reactive oxygen species; metabolic detoxification; stress response; cysteine; glutathione peroxidase; genes; RNA; Brachionus; thiols; oxidative stress; defense mechanisms
Abstract:
... Glutathione S-transferases (GSTs; EC 2.5.1.18) are major enzymes that function in Phase II detoxification reactions by catalyzing the conjugation of reduced glutathione through cysteine thiol. In this study, we cloned and sequenced four GST genes from the monogonont rotifer Brachionus koreanus. The domain regions of four Bk-GSTs showed a high similarity to those of other species. In addition, to e ...
DOI:
10.1016/j.cbpc.2013.05.006

44. Effect of different live food on survival and growth of first feeding barber goby, Elacatinus figaro (Sazima, Moura & Rosa 1997) larvae

Author:
Guilherme Côrtes; Mônica Y Tsuzuki
Source:
Aquaculture research 2012 v.43 no.6 pp. 831-834
ISSN:
1355-557X
Subject:
Artemia; Brachionus; experimental diets; fatty acids; fish culture; foods; marine fish; nauplii; nutritional adequacy; nutritive value; survival rate; zooplankton
Abstract:
... One of the major challenges in marine fish culture is how to provide live food of adequate size and nutritional quality for first‐feeding larvae. Commonly used live food organisms, rotifers and brine shrimp, may not always be the best option. To determine the suitability of different zooplankton in the larviculture of Elacatinus figaro, three diets were tested: RE – rotifers Brachionus sp. (10 ...
DOI:
10.1111/j.1365-2109.2011.02896.x

45. Effect of enrichment time and dietary DHA and non-highly unsaturated fatty acid composition on the efficiency of DHA enrichment in phospholipid of rotifer (Brachionus Cayman)

Author:
Keshuai Li; Yngvar Olsen
Source:
Aquaculture 2015 v.446 pp. 310-317
ISSN:
0044-8486
Subject:
Brachionus; diet; fatty acid composition; fiberglass; fish larvae; live feeds; marine fish; phosphatidylcholines; phosphatidylethanolamines; starvation; unsaturated fatty acids
Abstract:
... An increasing number of studies suggest that DHA associated with dietary phospholipid (PL) is better metabolically available for fish larvae. Knowledge on how to increase DHA levels in the major PL classes of the live feed is needed. Brachionus Cayman was cultured in conical fibreglass vessels, enriched with commonly used commercial diet Multigain or DHA Selco (DSelco) in flat bottom vessels at 20 ...
DOI:
10.1016/j.aquaculture.2015.05.005

46. Effect of larval density and feeding sequence on meagre (Argyrosomus regius; Asso, 1801) larval rearing

Author:
Roo, J.; Hernández-Cruz, C.M.; Borrero, C.; Schuchardt, D.; Fernández-Palacios, H.
Source:
Aquaculture 2010 v.302 no.1-2 pp. 82-88
ISSN:
0044-8486
Subject:
Argyrosomus; fish culture; animal growth; stocking rate; lipid content; fatty acid composition; live feeds; Artemia; Rotifera; fish larvae; protein content; fish feeding
Abstract:
... This paper summarizes results from two comparative studies of the effect of initial larval density and feeding sequence on meagre (Argyrosomus regius) rearing trials. To determine the density effect, two initial larval densities of 50 larvae L⁻ ¹ and 100 larvae L⁻ ¹ were established. For each larval density, three feeding sequences were tested, applying different combinations of rotifers (Brachion ...
DOI:
10.1016/j.aquaculture.2010.02.015

47. Effect of nutritional status and concentration of Nannochloropsis gaditana as enrichment diet for the marine rotifer Brachionus sp

Author:
Martiña Ferreira; Ángela Cortina-Burgueño; Isabel Freire; Ana Otero
Source:
Aquaculture 2018 v.491 pp. 351-357
ISSN:
0044-8486
Subject:
Brachionus; Nannochloropsis; aquaculture; arachidonic acid; biomass production; carbohydrates; cost effectiveness; diet; eicosapentaenoic acid; lipid content; live feeds; microalgae; nutritional status; nutritive value
Abstract:
... The development of strategies to improve the quality and to optimize the costs of rotifer production for fish larval feeding, particularly those related to microalgal supply, are highly desirable. In the present work, three different rations (80,000, 130,000 or 200,000 cells rotifer−1) of Nannochloropsis gaditana were assessed as enrichment diets for the marine rotifer Brachionus sp. The microalga ...
DOI:
10.1016/j.aquaculture.2018.03.024

48. Effect of pH on survival, reproduction, egg viability and growth rate of five closely related rotifer species

Author:
Yin, Xu Wang; Niu, Cui Juan
Source:
Aquatic ecology 2008 v.42 no.4 pp. 607-616
ISSN:
1386-2588
Subject:
Brachionus; eggs; fecundity; pH; population growth; survival rate; viability
Abstract:
... In the laboratory we examined the effect of pH (5-10 with one interval) on survival, reproduction, egg viability and growth rate (intrinsic growth rate--r m and population growth rate--r) of five Brachionus rotifer species (B. calyciflorus, B. quadridentatus, B. urceolaris, B. patulus and B. angularis). The pH was shown to exert a major influence on egg viability and growth rate (r m and r) for ea ...
DOI:
10.1007/s10452-007-9136-9

49. Effect of pharmaceuticals exposure on acetylcholinesterase (AchE) activity and on the expression of AchE gene in the monogonont rotifer, Brachionus koreanus

Author:
Jae-Sung Rhee; Bo-Mi Kim; Chang-Bum Jeong; Heum Gi Park; Kenneth Mei Yee Leung; Young-Mi Lee; Jae-Seong Lee
Source:
Comparative Biochemistry and Physiology, Part C 2013 v.158 pp. 216-224
ISSN:
1532-0456
Subject:
Brachionus; acetaminophen; acetylcholinesterase; adenosine triphosphate; aquatic environment; biomarkers; chlorpyrifos; food webs; gene expression; gene expression regulation; genes; humans; messenger RNA; oxytetracycline; physiology; risk assessment; sulfamethoxazole; toxicity; trimethoprim; veterinary medicine; wastewater
Abstract:
... Pharmaceuticals are widely used in human and veterinary medicine. However, they are emerging as a significant contaminant in aquatic environments through wastewater. Due to the persistent and accumulated properties of pharmaceuticals via the food web, their potential harmful effects on aquatic animals are a great concern. In this study, we investigated the effects of six pharmaceuticals: acetamino ...
DOI:
10.1016/j.cbpc.2013.08.005

50. Effect of salinity and temperature on the acute and chronic toxicity of arsenic to the marine rotifers Proales similis and Brachionus ibericus

Author:
Uriel Arreguin Rebolledo; S. Nandini; S.S.S. Sarma; Ofelia Escobar-Sánchez
Source:
Marine pollution bulletin 2020 v.157 pp. 111341
ISSN:
0025-326X
Subject:
Brachionus; acute toxicity; adverse effects; arsenic; chronic toxicity; euryhaline species; life tables; marine pollution; population growth; salinity; temperature
Abstract:
... Several abiotic factors influence the ecological responses of aquatic invertebrates to metal toxicity. We examined the effect of salinity (10, 20, and 30 psu) and temperature (25 and 32 °C) on acute and chronic arsenic (As) toxicity to the euryhaline rotifers, Proales similis and Brachionus ibericus. In general, higher salinities and low temperature resulted in lower arsenic toxicity. The populati ...
DOI:
10.1016/j.marpolbul.2020.111341