Histopathological changes in rainbow trout (Oncorhynchus mykiss) after exposure to sublethal composite nitrogen fertilizers

Çapkın, Erol; Birincioğlu, S. Serap; Altınok, İlhan

doi:10.1016/j.ecoenv.2009.05.007

Cited by 38 publications

(21 citation statements)

References 22 publications

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“…In addition, under alkaline conditions, the toxicity of ammonium increases and may cause a stress response in fish. Wastewater treatment plant discharges, degradation of nitrogen-containing organic matter, fertilizer runoff, and industrial sources, aquatic ecosystems can have ammonia concentrations high enough to negatively impact fish (Benli et al 2008;Miron et al 2008;Spencer et al 2008;Capkin et al 2009). DWAF (1996) recommends a TWQR concentration of ≤ 7µg N L -1 for un-ionised ammonia in aquatic ecosystems.…”

Section: Discussionmentioning

confidence: 99%

Histopathological changes in two potential indicator fish species from a hyper-eutrophic freshwater ecosystem in South Africa: a baseline study

Marchand

Dyk

Barnhoorn

et al. 2012

African Journal of Aquatic Science

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SummaryHistopathological changes were identified in selected target organs from two freshwater fish species, Clarias gariepinus and Oreochromis mossambicus, inhabiting a hyper-eutrophic freshwater aquatic system. The approach was to use a histology-based fish health assessment protocol which included a semi-quantitative histopathological assessment of six target organs (gills, liver, ovaries, testes, kidney, and heart). Results of water quality analysis showed selected variables to be above the recommended levels including pH, ammonia, nitrogen, chloride, and phosphorus. A number of histopathological alterations were identified in the target organs of both species, with the highest number observed in the liver. Species differences were identified in terms of the severity of the alterations within all the organs, with most alterations being regressive in nature. The results of this study provide valuable baseline data for two indicator species inhabiting a hyper-eutrophic system that could be useful for future bio-monitoring studies.2

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Section: Discussionmentioning

confidence: 99%

Histopathological changes in two potential indicator fish species from a hyper-eutrophic freshwater ecosystem in South Africa: a baseline study

Marchand

Dyk

Barnhoorn

et al. 2012

African Journal of Aquatic Science

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“…So, structural damages from the effects of pollutants on liver metabolism have been supported by the results of histopathological studies (Jiraungkoorskul et al, 2003a). Moreover histopathology provides information on the effects of irritants in various organs (Capkin et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Effects of glyphosate on juvenile rainbow trout (Oncorhynchus mykiss): Transcriptional and enzymatic analyses of antioxidant defence system, histopathological liver damage and swimming performance

Topal

Atamanalp

Uçar

et al. 2015

Ecotoxicology and Environmental Safety

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“…Histological techniques are used to assess the toxic effect of pollutants such as pesticides and heavy metals in the aquatic environment (25). Little information is available on chlorpyrifos toxicity and effects on CA sensitivity in fish.…”

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confidence: 99%

In vivo changes in carbonic anhydrase activity and histopathology of gill and liver tissues after acute exposure to chlorpyrifos in rainbow trout

Topal¹,

Atamanalp²,

Oruç³

et al. 2014

Archives of Industrial Hygiene and Toxicology

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Chlorpyrifos is an organophosphate pesticide widely used in agriculture and aquaculture. This study investigated its effects on carbonic anhydrase (CA) enzyme activity and histopathology of rainbow trout gill and liver. The fish were exposed to 2.25 (25 % of 96 h LC 50 ), 4.5 (50 % of 96 h LC 50 ), and 6.75 µg L -1 (75 % of 96 h LC 50 ) of chlorpyrifos for 24, 48, 72, and 96 h. CA activity was measured in liver and gills and histopathological changes were examined by light microscopy. The most common liver changes at most of the chlorpyrifos concentrations were hyperaemia and degenerative changes. Gill tissues were characterised by lamellar hyperaemia, lamellar oedemas, clumping, cellular degeneration, hyperplasia, and lamellar atrophy. CA enzyme activity in the gills decreased at all concentrations at 48, 72, and 96 h after exposure to chlorpyrifos (p<0.05). Similarly, there was a time-dependent decrease in CA activity at all of the concentrations in liver tissues (p<0.05). The present study indicated that chlorpyrifos inhibits CA enzyme activity and causes histopathological damage in gill and liver tissues.

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Histopathological changes in rainbow trout (Oncorhynchus mykiss) after exposure to sublethal composite nitrogen fertilizers

Cited by 38 publications

References 22 publications

Histopathological changes in two potential indicator fish species from a hyper-eutrophic freshwater ecosystem in South Africa: a baseline study

Histopathological changes in two potential indicator fish species from a hyper-eutrophic freshwater ecosystem in South Africa: a baseline study

Effects of glyphosate on juvenile rainbow trout (Oncorhynchus mykiss): Transcriptional and enzymatic analyses of antioxidant defence system, histopathological liver damage and swimming performance

In vivo changes in carbonic anhydrase activity and histopathology of gill and liver tissues after acute exposure to chlorpyrifos in rainbow trout

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