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1. Investigation of farmed Nile tilapia health through histopathology

Author:
Lilian Dordete Steckert; Lucas Cardoso; Gabriela Tomas Jerônimo; Santiago Benites de Pádua; Maurício Laterça Martins
Source:
Aquaculture 2018 v.486 pp. 161-169
ISSN:
0044-8486
Subject:
Oreochromis niloticus; Protozoa; Trichodina; bacteremia; condition factor; correlation; epithelium; farmed fish; fish farms; gills; health status; heart; histology; histopathology; hyperplasia; inflammation; liver; mixed infection; mortality; parasites; parasitoses; spleen; Brazil
Abstract:
... Confinement is a stressful practice for fish, which can culminate in tissue damage and production losses. Histopathological examination is a technique capable of forthcoming the normal and pathological conditions in fish. It reflects the animal's health and welfare, being able to apply measures to mitigate the stress and diseases in fish farming. This study evaluated the health status of cultured ...
DOI:
10.1016/j.aquaculture.2017.12.021

2. Life history aspects of carp (Pisces:Cyprinidae) in a dam lake ecosystem: current status and future needs

Author:
Ozlem Ablak Gurbuz
Source:
Marine & freshwater research 2017 v.68 no.10 pp. 1912-1920
ISSN:
1323-1650
Subject:
Cyprinus carpio; allometry; aquaculture; carp; condition factor; correlation; ecosystems; eggs; fecundity; females; fish production; habitats; lakes; life history; males; population structure; Turkey (country)
Abstract:
... An increase in aquaculture production may have positive effects on both food resources and a country’s economy. Carp (Cyprinus carpio L.) is the most common cyprinid species in Turkey and accounts for approximately one-fifth of total inland water aquaculture production. However, carp production in Turkey has decreased in recent years. Changes in carp population of Hirfanli Dam were compared with p ...
DOI:
10.1071/MF16251

3. Masculinization and reproductive effects in western mosquitofish (Gambusia affinis) after long-term exposure to androstenedione

Author:
Li-Ping Hou; Yang Yang; Hu Shu; Guang-Guo Ying; Jian-Liang Zhao; Gui-Zhen Fang; Li Xin; Wen-Jun Shi; Li Yao; Xue-Mei Cheng
Source:
Ecotoxicology and environmental safety 2018 v.147 pp. 509-515
ISSN:
0147-6513
Subject:
Gambusia affinis; adulthood; adverse effects; androstenedione; body weight; chronic exposure; condition factor; correlation; females; fish; gonads; histology; liver; males; masculinization; reproduction; steroid hormones
Abstract:
... Androstenedione (AED) is a naturally occurring steroid hormone. It is metabolized to potent androgens, which may induce androgenic effects in fish. However, little is known whether and how the androgens interfere with the fish gonadal development and reproduction. This study aimed at demonstrating the effects of long-term AED exposure on reproduction and development in mosquitofish (Gambusia affin ...
DOI:
10.1016/j.ecoenv.2017.08.004

4. Morphometric and Meristic Characteristics and Some Aspects of Reproductive Biology of Spiny Eel, Mastacembelus armatus (Lacepede, 1800)

Author:
Anisul Islam Mahmud; Yousuf Ahmmad Patwary; Md. Rafiqul Islam Sarder; Md. Fazlul Awal Mollah
Source:
Proceedings of the National Academy of Sciences, India, Section B: biological sciences 2018 v.88 no.1 pp. 339-353
ISSN:
0369-8211
Subject:
Mastacembelus armatus; body measurements; breeding season; condition factor; correlation; eel; females; fisheries; gonadosomatic index; head; males; managers; morphometry; sustainable fisheries
Abstract:
... Various body measurements of spiny eel, Mastacembelus armatus (Lacepede, 1800) were positively correlated with total length, and with head length at 1 % significant level and showed no significant morphological difference between two sexes. The relationship between body measurements was found to be linear. The relation between the total length and weight of M. armatus is described as [Formula: see ...
DOI:
10.1007/s40011-016-0754-7

5. Survival of Migrating Sea Trout (Salmo trutta) Smolts During Their Passage of an Artificial Lake in a Danish Lowland Stream

Author:
M. Schwinn; K. Aarestrup; H. Baktoft; A. Koed
Source:
River research and applications 2017 v.33 no.4 pp. 558-566
ISSN:
1535-1459
Subject:
European Union; Salmo trutta; acoustics; anadromous fish; aquatic environment; coastal water; condition factor; correlation; environmental factors; juveniles; lakes; models; mortality; predation; probability; radio; rivers; runoff; smolts; streams; surface water; telemetry; transponders; water temperature; wetlands; Denmark
Abstract:
... Artificial lake development is often used as a management tool to reduce nutrient runoff to coastal waters. Denmark has restored more than 10 000 ha of wetlands and lakes in the last 14 years as a consequence of ‘Action Plans for the Aquatic Environment’, which aim to meet the demands of the European Union's Water Framework Directive. Juvenile, seaward migrating salmonids are highly affected by im ...
DOI:
10.1002/rra.3116

6. Assessment of heavy metals in aquaculture fishes collected from southwest coast of Taiwan and human consumption risk

Author:
Yun-Ru Ju; Chiu-Wen Chen; Chih-Feng Chen; Xiang-Ying Chuang; Cheng-Di Dong
Source:
International biodeterioration & biodegradation 2017 v.124 pp. 314-325
ISSN:
0964-8305
Subject:
aquaculture; arsenic; bioaccumulation factor; cadmium; coasts; condition factor; copper; correlation; gastrointestinal system; health effects assessments; heavy metals; human health; humans; kidneys; liver; mercury; muscles; nickel; pollution; ponds; risk; seafoods; sediments; tissues; zinc; Taiwan
Abstract:
... The present study determined the metal levels in aquaculture fish of tilapia and water and sediments in the southwestern Taiwan and estimated the human health risk assessment for consumption of tilapia. Bioconcentration factor (BCF) and biota-sediment accumulation factor (BSAF) were used to assess the metal accumulation ability of biotas, while metal pollution index (MPI) was assessed to compare t ...
DOI:
10.1016/j.ibiod.2017.04.003

7. Concentration of mercury in muscles of predatory and non-predatory fish from lake Pluszne (Poland)

Author:
Joanna Łuczyńska; Marek Jan Łuczyński; Beata Paszczyk; Elżbieta Tońska
Source:
Journal of Veterinary Research 2016 v.60 no.1 pp. 43-47
ISSN:
2450-8608
Subject:
Abramis brama; Coregonus lavaretus; Esox lucius; Perca fluviatilis; Rutilus rutilus; atomic absorption spectrometry; body weight; bream; condition factor; correlation; freshwater fish; lakes; mercury; muscle tissues; muscles; perch; pike; Poland
Abstract:
... Introduction: The study examined the concentration of total mercury and correlation coefficients between fish size or FCF (condition factor) and the content of Hg in muscle tissue of six freshwater fish: bream (Abramis brama L.), roach (Rutilus rutilus L.), whitefish (Coregonus lavaretus L.), vendace (Coregonus albula L.), perch (Perca fluviatilis L.), and pike (Esox lucius L.). Material and Metho ...
DOI:
10.1515/jvetres-2016-0007

8. Conifer density within lake catchments predicts fish mercury concentrations in remote subalpine lakes

Author:
Collin A. Eagles-Smith; Garth Herring; Branden Johnson; Rick Graw
Source:
Environmental pollution 2016 v.212 no. pp. 279-289
ISSN:
0269-7491
Subject:
surface area; watersheds; dissolved organic carbon; anthropogenic activities; fish; forests; risk; correlation; lakes; sulfates; conifers; geometry; statistical models; freshwater; bioaccumulation; condition factor; emissions; food webs; mercury; direct contact; landscapes; Salmonidae; stand basal area; United States
Abstract:
... Remote high-elevation lakes represent unique environments for evaluating the bioaccumulation of atmospherically deposited mercury through freshwater food webs, as well as for evaluating the relative importance of mercury loading versus landscape influences on mercury bioaccumulation. The increase in mercury deposition to these systems over the past century, coupled with their limited exposure to d ...
Handle:
10113/5626192
DOI:
10.1016/j.envpol.2016.01.049
CHORUS:
10.1016/j.envpol.2016.01.049
Chorus Open Access:
10.1016/j.envpol.2016.01.049

9. Effects of urban land-use on largescale stonerollers in the Mobile River Basin, Birmingham, AL

Author:
D. Iwanowicz; M. C. Black; V. S. Blazer; H. Zappia; W. Bryant
Source:
Ecotoxicology 2016 v.25 no.3 pp. 608-621
ISSN:
0963-9292
Subject:
Campostoma; apoptosis; basins; biomarkers; condition factor; correlation; dose response; ecoregions; fish health; glutathione; histology; histopathology; infrastructure; land use; liver; macrophages; parasites; spring; streams; urbanization; watersheds; Alabama
Abstract:
... During the spring and fall of 2001 and the spring of 2002 a study was conducted to evaluate the health of the largescale stoneroller (Campostoma oligolepis) populations in streams along an urban land-use gradient. Sites were selected from a pool of naturally similar sub-basins (eco-region, basin size, and geology) of the Mobile River basin (MRB), using an index of urban intensity derived from infr ...
DOI:
10.1007/s10646-016-1620-3

10. Intersex and alterations in reproductive development of a cichlid, Tilapia guineensis, from a municipal domestic water supply lake (Eleyele) in Southwestern Nigeria

Author:
Aina O. Adeogun; Oju R. Ibor; Sherifat D. Adeduntan; Augustine Arukwe
Source:
Science of the total environment 2016 v.541 pp. 372-382
ISSN:
0048-9697
Subject:
Tilapia guineensis; animal ovaries; aquatic ecosystems; aquatic environment; biomarkers; condition factor; correlation; data collection; dieldrin; endocrine-disrupting chemicals; environmental monitoring; estradiol; females; feminization; fish; follicle-stimulating hormone; lakes; luteinizing hormone; males; masculinization; messenger RNA; multivariate analysis; muscles; phenotype; polychlorinated biphenyls; principal component analysis; sediments; testes; towns; vitellogenin; water supply; Nigeria
Abstract:
... The objectives of this study were to develop and validate biomarker techniques for aquatic environmental monitoring of endocrine disrupting chemicals (EDCs) in Nigeria aquatic ecosystems, using the Eleyele Lake, which is a major source of domestic water supply to Ibadan and its surrounding towns, as a model aquatic environment and Tilapia guineensis, as a model organism. A total of 55 male and 28 ...
DOI:
10.1016/j.scitotenv.2015.09.061

11. Anadromous char as an alternate food choice to marine animals: A synthesis of Hg concentrations, population features and other influencing factors

Author:
Marlene S. Evans; Derek C.G. Muir; Jonathan Keating; Xiaowa Wang
Source:
Science of the total environment 2015 v.509-510 pp. 175-194
ISSN:
0048-9697
Subject:
anadromous fish; carbon; condition factor; correlation; databases; food choices; foodways; habitats; latitude; life history; lipid content; longitude; mercury; monitoring; muscles; nitrogen; nutrients; spring; stable isotopes; variance; Arctic region; Quebec
Abstract:
... This study was conducted to confirm sporadic measurements made over the late 1970s to the early 1990s which determined that mercury (Hg) concentrations were low in anadromous char across Arctic and subarctic Canada including northern Québec and Labrador. Over 2004–2013, anadromous char populations across northern Canada were investigated at 20 sites for Hg concentrations and life history character ...
DOI:
10.1016/j.scitotenv.2014.10.074

12. Development of a time-resolved fluoroimmunoassay for salmon insulin-like growth factor binding protein-1b

Author:
Miki Fukuda; Nobuto Kaneko; Kohei Kawaguchi; Ernst M. Hevrøy; Akihiko Hara; Munetaka Shimizu
Source:
Comparative biochemistry and physiology 2015 v.187 pp. 66-73
ISSN:
1095-6433
Subject:
Oncorhynchus masou; antiserum; blood serum; body weight; condition factor; correlation; cross reaction; fluorescent antibody technique; insulin-like growth factor I; insulin-like growth factor binding proteins; refeeding; salmon; smoltification; specific growth rate
Abstract:
... In salmon plasma/serum, three major insulin-like growth factor binding proteins (IGFBPs) are consistently detected at 22-, 28- and 41-kDa. The 22-kDa form has been identified as IGFBP-1b and shown to increase under catabolic conditions. We developed a competitive time-resolved fluoroimmunoassay (TR-FIA) for salmon IGFBP-1b. Purified salmon IGFBP-1b was used for biotin-labeling, assay standard and ...
DOI:
10.1016/j.cbpa.2015.04.016

13. Host condition and accumulation of metals by acanthocephalan parasite Echinorhynchus gadi in cod Gadus morhua from the southern Baltic Sea

Author:
M. Podolska; L. Polak-Juszczak; K. Nadolna-Ałtyn
Source:
Marine pollution bulletin 2016 v.113 no.1-2 pp. 287-292
ISSN:
0025-326X
Subject:
Acanthocephala; Gadus morhua; bioaccumulation factor; cadmium; calcium; chromium; condition factor; copper; correlation; iron; lead; liver; magnesium; manganese; mercury; muscles; parasites; potassium; sodium; strontium; tissues; toxicity; water pollution; zinc; Baltic Sea
Abstract:
... In this study, we analyzed the relationship between concentration of metals in the host-parasite system (cod - acanthocephalan Echinorhynchus gadi) and Fulton's condition factor (FCF) of the host. The relationship between metal (Ca, Cd, Cr, Cu, Fe, Hg, K, Mg, Mn, Na, Pb, Sr, Zn) concentrations in E. gadi and cod tissues was expressed as a bioconcentration factor (BCF), the ratio of the concentrati ...
DOI:
10.1016/j.marpolbul.2016.09.049

14. Length-weight relationship and condition factor of five sub-populations of Trichogaster lalius (Osphronemidae) of central and eastern regions of India

Author:
Madhu Awasthi; Ankur Kashyap; M. Serajuddin
Source:
Journal of ichthyology 2015 v.55 no.6 pp. 849-853
ISSN:
0032-9452
Subject:
Trichogaster; allometry; condition factor; correlation; covariance; environmental factors; equations; fish; habitats; rivers; India
Abstract:
... Length-weight relationship along with condition factor was studied in five sub-populations of Trichogaster lalius collected from five different habitats of central and eastern parts of India characterized by different environmental conditions. Results of the current length-weight relationship study show that there is significant difference from the isometric b (3.0) value in the sub-populations of ...
DOI:
10.1134/S0032945215060028

15. Relationship between Fulton's condition factor and proximate body composition in three freshwater fish species

Author:
A. Mozsár; G. Boros; P. Sály; L. Antal; S. A. Nagy
Source:
Journal of applied ichthyology 2015 v.31 no.2 pp. 315-320
ISSN:
0175-8659
Subject:
Lepomis gibbosus; Perccottus glenii; Scardinius erythrophthalmus; body composition; carbon; condition factor; correlation; fish development; freshwater fish; gender; life history; lipid content; protein content; variance; water content
Abstract:
... Morphometric‐based condition indices are widely used to assess proximate body composition and, collaterally, feeding and living conditions of fish. However, the exact relationship between condition indices and proximate body composition of fish and its relatedness to life history traits and seasonality has yet to be fully explored. Therefore, the aim of this study was to examine how the Fulton's c ...
DOI:
10.1111/jai.12658

16. Survey of anisakids in commercial teleosts from the western Mediterranean Sea: Infection rates and possible effects of environmental and ecological factors

Author:
Lorena Pulleiro-Potel; Elena Barcala; Elvira Mayo-Hernández; Pilar Muñoz
Source:
Food control 2015 v.55 pp. 12-17
ISSN:
0956-7135
Subject:
Anisakis; Contracaecum; Hysterothylacium; Mullus surmuletus; Pagellus; coasts; condition factor; correlation; fish; fishery resources; humans; larvae; salinity; surveys; temperature; Mediterranean Sea
Abstract:
... This study aims to investigate the occurrence of Anisakidae larvae in fishes of commercial value and largely used for human consumption, from the Spanish Mediterranean coasts. The influence of environmental (geographical location, depth, temperature and salinity of the fishing grounds) and biological (weight, length and corporal condition) variables were evaluated. A total of 290 fishes belonging ...
DOI:
10.1016/j.foodcont.2015.02.020

17. Assessing reproductive and endocrine parameters in male largescale suckers (Catostomus macrocheilus) along a contaminant gradient in the lower Columbia River, USA

Author:
J.A. Jenkins; H.M. Olivier; R.O. Draugelis-Dale; B.E. Eilts; L. Torres; R. Patiño; E. Nilsen; S.L. Goodbred
Source:
Science of the total environment 2014 v.484 pp. 365-378
ISSN:
0048-9697
Subject:
Catostomus macrocheilus; DDE (pesticide); DNA fragmentation; Salmonidae; adenosine triphosphate; anadromous fish; apoptosis; biomarkers; blood plasma; condition factor; conservation status; correlation; environmental exposure; flow cytometry; gonadosomatic index; habitats; human population; immunoassays; light microscopy; liver; luciferase; males; membrane potential; mitochondrial membrane; models; nuclear genome; pollutants; polybrominated diphenyl ethers; polychlorinated biphenyls; sperm motility; spermatozoa; testes; thyroid gland; triiodothyronine; viability; vitellogenin; water pollution; wildlife; Columbia River; United States
Abstract:
... Persistent organochlorine pollutants such as polychlorinated biphenyls (PCBs), dichlorodiphenyldichloroethylene (p,p′-DDE), and polybrominated diphenyl ethers (PBDEs) are stable, bioaccumulative, and widely found in the environment, wildlife, and the human population. To explore the hypothesis that reproduction in male fish is associated with environmental exposures in the lower Columbia River (LC ...
DOI:
10.1016/j.scitotenv.2013.09.097

18. Correlation between body size and fatty acid and essential amino acid composition of round goby (Neogobius melanostomus) and monkey goby (Neogobius fluviatilis) from the Rhine River (Germany)

Author:
Mohammad Ghomi; Eric Elert; Jost Borcherding; Andreas Uhde; Patrick Fink
Source:
Biologia 2014 v.69 no.6 pp. 799-805
ISSN:
1336-9563
Subject:
Neogobius melanostomus; amino acid composition; arginine; body length; condition factor; correlation; docosahexaenoic acid; essential amino acids; essential fatty acids; isoleucine; leucine; nutritive value; oleic acid; palmitic acid; phenylalanine; threonine; valine; Germany; Rhine River
Abstract:
... In this study correlations between body size and muscle fatty and amino acid content of two species of goby, round goby (Neogobius melanostomus) and monkey goby (Neogobius fluviatilis) caught from river Rhine (Germany) were investigated. Among saturated fatty acids (SFAs), mono- (MUFA) and polyunsaturated fatty acids (PUFAs) only SFAs were significantly higher in round goby than monkey goby (P < 0 ...
DOI:
10.2478/s11756-014-0374-8

19. Effects of dietary amylose/amylopectin ratio on growth performance, feed utilization, digestive enzymes, and postprandial metabolic responses in juvenile obscure puffer Takifugu obscurus

Author:
Xiang-he Liu; Chao-xia Ye; Ji-dan Ye; Bi-duan Shen; Chun-yan Wang; An-li Wang
Source:
Fish physiology and biochemistry 2014 v.40 no.5 pp. 1423-1436
ISSN:
0920-1742
Subject:
Takifugu obscurus; alanine transaminase; amino acid composition; amylopectin; amylose; aspartate transaminase; blood; blood glucose; cholesterol; condition factor; correlation; crude protein; digestibility; enzyme activity; experimental diets; feed conversion; fish; glucose; glucose-6-phosphatase; glycogen; growth performance; hepatosomatic index; hexokinase; lipid content; liver; low density lipoprotein; muscles; protein efficiency ratio; pyruvate kinase; regression analysis; triacylglycerols; trypsin; urea nitrogen; weight gain
Abstract:
... The effect of dietary amylose/amylopectin (AM/AP) ratio on growth, feed utilization, digestive enzyme activities, plasma parameters, and postprandial blood glucose responses was evaluated in juvenile obscure puffer, Takifugu obscurus. Five isonitrogenous (430 g kg⁻¹crude protein) and isolipidic (90 g kg⁻¹crude lipid) diets containing an equal starch level (250 g kg⁻¹starch) with different AM/AP ra ...
DOI:
10.1007/s10695-014-9937-4
PubMed:
24710601

20. The responses of Nile tilapia Oreochromis niloticus (Linnaeus, 1758) in Lake Wamala (Uganda) to changing climatic conditions

Author:
Natugonza Vianny; Ogutu‐Ohwayo Richard; Efitre Jackson; Muyodi Fredrick; Mbabazi Dismas; Olokotum Mark; Musinguzi Laban; Naigaga Shamim; Namboowa Sharon
Source:
Lakes & reservoirs 2015 v.20 no.2 pp. 101-119
ISSN:
1320-5331
Subject:
Oreochromis niloticus; climatic factors; condition factor; correlation; diet; dry season; evaporation; fish; insects; lakes; mortality; rain; species diversity; temperature; wet season; Uganda
Abstract:
... Changes in the catches of Nile tilapia, Oreochromis niloticus (Linnaeus, 1758), in Lake Wamala (Uganda) have been observed since its introduction. The factors contributing to these changes, however, are not well understood. This study examined changes in species composition, size structure, size at first maturity, length–weight relationship and condition factor of Nile tilapia in Lake Wamala, in r ...
DOI:
10.1111/lre.12091