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You searched for: Publication Year 2016 Remove constraint Publication Year: 2016 Subject biomarkers Remove constraint Subject: biomarkers Subject Oreochromis niloticus Remove constraint Subject: Oreochromis niloticus
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1. Histopathological biomarkers and genotoxicity in gill and liver tissues of Nile tilapia Oreochromis niloticus from a polluted part of the Nile River, Egypt

Author:
AA Baiomy
Source:
African journal of aquatic science 2016 v.41 no.2 pp. 181-191
ISSN:
1727-9364
Subject:
DNA damage; Oreochromis niloticus; aneurysm; biomarkers; electron microscopy; fish; fish health; genotoxicity; glycosaminoglycans; heavy metals; hepatocytes; histopathology; hyperplasia; liver; necrosis; physicochemical properties; pollutants; summer; tissues; water pollution; Egypt; Nile River
Abstract:
... Fish health is affected by water pollution. Oreochromis niloticus collected during summer 2014 from El-Serw, a polluted site on the Nile River, were compared with fish from a reference site, El-Zamalek. Histopathological changes were detected in gill and liver tissue samples using light and electron microscopy. In addition, the degree of DNA damage was measured using the comet assay. To indicate t ...
DOI:
10.2989/16085914.2016.1168734

2. Toxicity evaluation of copper oxide bulk and nanoparticles in Nile tilapia, Oreochromis niloticus, using hematological, bioaccumulation and histological biomarkers

Author:
Amr A. Abdel-Khalek; Shereen R. Badran; Mohamed-Assem S. Marie
Source:
Fish physiology and biochemistry 2016 v.42 no.4 pp. 1225-1236
ISSN:
0920-1742
Subject:
Oreochromis niloticus; anemia; aquatic ecosystems; bioaccumulation factor; biomarkers; cupric oxide; erythrocytes; freshwater fish; gills; health status; hematologic tests; hemoglobin; histology; histopathology; industrial applications; kidneys; liver; muscles; nanoparticles; toxicity
Abstract:
... The increased industrial applications of nanoparticles (NPs) augment the possibility of their deposition into aquatic ecosystems and threatening the aquatic life. So, this study aimed to provide a comparable toxicological effects of nano-CuO and bulk CuO on a common freshwater fish, Oreochromis niloticus. Fish were exposed to two selected doses (1/10 and 1/20 of the LC₅₀/96 h) of both nano-/bulk C ...
DOI:
10.1007/s10695-016-0212-8

3. Assessing the dietary sources of two cichlid species in River Nile sub-branches: Stomach contents, fatty acids and stable isotopes analyses

Author:
Mohamad S. Abd El-Karim; Mohamad H.H. Ali; Abeer M.A. Mahmoud
Source:
Egyptian Journal of Aquatic Research (Online) 2016 v.42 no.2 pp. 205-213
ISSN:
2090-3278
Subject:
Bacillariophyceae; Myriophyllum spicatum; Oreochromis niloticus; Sarotherodon; anthropogenic activities; bacteria; biomarkers; carbon; detritus; dietary nutrient sources; epiphytes; fatty acids; macrophytes; muscles; nitrogen; particulate organic matter; sand; stable isotopes; stomach
Abstract:
... We assess the importance of four different food sources as dietary components of Oreochromis niloticus and Sarotherodon galilaeus in Nile sub-branches using stomach contents, fatty acids (FA) and stable isotopes (SI) analyses. Diatoms were the dominant food items, whereas sand and mud constitute a major part of the stomach contents of both cichlids in the northern ElBehery canal. FAs and SI were c ...
DOI:
10.1016/j.ejar.2016.05.001

4. Effects of Dietary Exposure to Sulfamethazine on the Hematological Parameters and Hepatic Oxidative Stress Biomarkers in Nile Tilapia (Oreochromis niloticus)

Author:
Fernanda Garcia Sampaio; Maria Lídia Carra; Claudio Martin Jonsson; Vitoria Teodoro Gonçalves; Genoefa Dal’Bo; Kátia Santos Damacena Nunes; José Henrique Valim; Bruno Stéfano Lima Dallago; Sonia Claudia do Nascimento de Queiroz; Felix Guillermo Reyes Reyes
Source:
Bulletin of environmental contamination and toxicology 2016 v.97 no.4 pp. 528-535
ISSN:
0007-4861
Subject:
Oreochromis niloticus; biomarkers; body weight; catalase; dietary exposure; fish; fish culture; glutathione transferase; hematologic tests; juveniles; lipid peroxidation; medicated feeds; oral administration; oxidative stress
Abstract:
... Sulfamethazine (SMZ) is one of the most commonly used sulfonamide compounds in fish farming, and its physiological effects on fish are unknown. SMZ was administered to juvenile Nile tilapia (Oreochromis niloticus) at a dose level of 422 mg kg⁻¹ body weight, for a period of 11 days, via medicated feed. Fish were divided into two groups, the control group (CG) and the group fed with SMZ in feed. The ...
DOI:
10.1007/s00128-016-1837-0

5. Effects of alkylphenols on the biotransformation of diuron and enzymes involved in the synthesis and clearance of sex steroids in juvenile male tilapia (Oreochromus mossambica)

Author:
Andréia A. Felício; Jordan Crago; Lindley A. Maryoung; Eduardo A. Almeida; Daniel Schlenk
Source:
Aquatic toxicology 2016 v.180 pp. 345-352
ISSN:
0166-445X
Subject:
Oreochromis niloticus; aromatase; bioassays; biomarkers; biosynthesis; biotransformation; brain; cytochrome P-450; diuron; estrogen receptors; estrogenic properties; fish; fractionation; in vitro studies; juveniles; males; messenger RNA; metabolites; surface water; surfactants; testosterone; vitellogenin; United States
Abstract:
... Previous studies using in vivo bioassay guided fractionation indicated that the herbicide diuron (3-(3,4-dichlorophenyl)-1,1-dimethylurea) and alkylphenol (AP)-containing surfactants were detected in fractions of extracts that induced the estrogenic biomarker, vitellogenin in fish exposed to surface water extracts from the United States. However, when the compounds were evaluated individually usin ...
DOI:
10.1016/j.aquatox.2016.10.015

6. Gonado-histopathological changes, intersex and endocrine disruptor responses in relation to contaminant burden in Tilapia species from Ogun River, Nigeria

Author:
Oju R. Ibor; Aina O. Adeogun; Olusegun A. Fagbohun; Augustine Arukwe
Source:
Chemosphere 2016 v.164 pp. 248-262
ISSN:
0045-6535
Subject:
Oreochromis niloticus; Sarotherodon; animal ovaries; aromatase; biomarkers; dieldrin; endocrine-disrupting chemicals; enzyme immunoassays; females; feminization; fish; follicle-stimulating hormone; gonadosomatic index; histopathology; lindane; luteinizing hormone; males; masculinization; messenger RNA; muscles; phenotype; pollution; polychlorinated biphenyls; principal component analysis; quantitative polymerase chain reaction; rivers; sediments; testes; vitellogenin; Nigeria
Abstract:
... In the present study, we investigated the occurrence of intersex condition, histopathological changes in the gonad and endocrine disruptor biomarker responses in Tilapia species (Tilaipia guineensis, Sarotherodon galileaus and Oreochromis niloticus) along the Ogun River, Nigeria. The study sites covered a length of 320 km and a total of 1074 tilapias were collected from three sampling sites (Abeok ...
DOI:
10.1016/j.chemosphere.2016.08.087

7. The applied indicators of water quality may underestimate the risk of chemical exposure to human population in reservoirs utilized for human supply—Southern Brazil

Author:
Debora Regina dos Santos; Flávia Yoshie Yamamoto; Francisco Filipak Neto; Marco Antônio Ferreira Randi; Juan Esquivel Garcia; Daniele Dietrich Moura Costa; Samuel Liebel; Sandro Xavier Campos; Carmen Lúcia Voigt; Ciro Alberto de Oliveira Ribeiro
Source:
Environmental science and pollution research international 2016 v.23 no.10 pp. 9625-9639
ISSN:
0944-1344
Subject:
Oreochromis niloticus; aquatic environment; bile; bioavailability; biomarkers; chemical analysis; etiology; fish; gills; gonads; histopathology; human population; humans; liver; metals; monitoring; muscles; neurotoxicity; oxidation; oxidative stress; pollutants; polycyclic aromatic hydrocarbons; risk; vitellogenin; water quality; water reservoirs; Brazil
Abstract:
... The knowledge concerning associations between chronic chemical exposure and many disorders with complex etiology involving gene–environment interactions is increasing, and new methods must be developed to improve water quality monitoring. The complexity of chemical mixtures in polluted aquatic environments makes the evaluation of toxic potential in those sites difficult, but the use of biomarkers ...
DOI:
10.1007/s11356-015-5995-0