2017
DOI: 10.1016/j.scitotenv.2017.04.070
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Effects of high ammonia concentrations on three cyprinid fish: Acute and whole-ecosystem chronic tests

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Cited by 48 publications
(19 citation statements)
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“…Nuclear hypertrophy indicates an increase in cell activity and detoxification signals in the liver, whereas karyolysis and indistinct cellular outlines suggest the beginning of necrosis (Barja‐Fernández, Míguez, & Álvarez‐Otero, ; Takashima & Hibiya, ; Velmurugan et al., ). In this study, as the exposure time increased, the histopathological changes in the liver of fish revealed a degenerative necrotic condition and degenerative changes (hepatocellular vacuolation and necrosis) induced by ammonia exposure at 24 hr, as found in Nile tilapia (Benli et al., ; Elsherif & Elfeky, ; Ravindrababu & Neeraja, ) and three cyprinid fish (Wang et al., ) exposed to ammonia‐N. Large fields of nuclear hypertrophy were observed in the liver, indicating that the liver of juvenile blunt snout bream could not fully recover after 96 hr post‐exposure.…”
Section: Discussionsupporting
confidence: 74%
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“…Nuclear hypertrophy indicates an increase in cell activity and detoxification signals in the liver, whereas karyolysis and indistinct cellular outlines suggest the beginning of necrosis (Barja‐Fernández, Míguez, & Álvarez‐Otero, ; Takashima & Hibiya, ; Velmurugan et al., ). In this study, as the exposure time increased, the histopathological changes in the liver of fish revealed a degenerative necrotic condition and degenerative changes (hepatocellular vacuolation and necrosis) induced by ammonia exposure at 24 hr, as found in Nile tilapia (Benli et al., ; Elsherif & Elfeky, ; Ravindrababu & Neeraja, ) and three cyprinid fish (Wang et al., ) exposed to ammonia‐N. Large fields of nuclear hypertrophy were observed in the liver, indicating that the liver of juvenile blunt snout bream could not fully recover after 96 hr post‐exposure.…”
Section: Discussionsupporting
confidence: 74%
“…In this study, blunt snout bream exposure to 25 mg/L ammonia‐N did not affect fish survival, which indicates that blunt snout bream have strong tolerance to ammonia‐N. The different tolerance to ammonia‐N for fish are probably attributed to the fish species and size, experimental conditions (pH, natural aquatic ecosystems or laboratory conditions) and ammonia‐N metabolism pathway (Miron et al., ; Wang & Walsh, ; Wang et al., ).…”
Section: Discussionmentioning
confidence: 62%
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“…This pollutant is originated from the protein-rich feed, which eventually lead to the excretion of NH 3 –N from protein metabolism. Excessive NH 3 –N results in various growth problems for both fish and shrimp that adversely affect the production [ 2 , 3 , 4 , 5 ]. NH 3 –N can be converted into more toxic nitrogen nitrate NO 3 –N by microbes, worsening its effect on fish [ 6 ].…”
Section: Introductionmentioning
confidence: 99%
“…A large difference in the "intrinsic toxicity" (α) of receptor-ligand complexes between species suggests the influence of sub-acute effects on the overall dynamics of Cypris pibera mortality. A common feature of the action of ammonium ions on the tested hydrobiones is the short initial time of the effect, which may be related to the general mechanism of interaction of NH 4 + ions in aquatic organisms which compete with K + ions during membrane transport (both ions have the same ionic radius) and as a result change in the polarization of membranes and the induction of pH changes within the cytoplasm of respiratory tissue cells [23].…”
Section: Discussionmentioning
confidence: 99%