Acute Toxicity of Nitrite to Red Drum Sciaenops ocellatus: Effect of Salinity 1
Abstract Acute toxicity of nitrite to red drum fingerlings was investigated under static conditions in environments containing 36.0 to 0.6 g/L salinity. The 48 h median lethal concentrations ranged from 85.7 mg/L nitrite‐N (36.0 g/L salinity) to 2.8 mg/L nitrite‐N (0.6 g/L salinity). Plasma nitrite...
| Published in: | Journal of the World Aquaculture Society |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
1989
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1111/j.1749-7345.1989.tb01002.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1749-7345.1989.tb01002.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1749-7345.1989.tb01002.x |
| Summary: | Abstract Acute toxicity of nitrite to red drum fingerlings was investigated under static conditions in environments containing 36.0 to 0.6 g/L salinity. The 48 h median lethal concentrations ranged from 85.7 mg/L nitrite‐N (36.0 g/L salinity) to 2.8 mg/L nitrite‐N (0.6 g/L salinity). Plasma nitrite concentrations increased with exposure time during a 48 h study and exceeded environmental concentrations in fish exposed to 9.1 and 5.1 mg/L nitrite‐N (1.4 g/L salinity). During 24 h of exposure, methemoglobin levels increased with increasing environmental nitrite conditions in fish exposed to 3, 6 and 9 mg/L nitrite‐N for 24 h (1.4 g/L salinity). The chloride component of salinity was not as effective in preventing nitrite toxicity as in other species of fish, indicating a potential problem for the culture of red drum in low‐salinity waters. |
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