Acute toxicity of ammonia and nitrite to shortnose sturgeon fingerlings

J. Jeffery Isely; J.R. Tomasso

doi:10.1577/1548-8640(1998)060%3c0315:atoaan%3e2.0.co;2

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USGS · 70020153

Acute toxicity of ammonia and nitrite to shortnose sturgeon fingerlings

J. Jeffery Isely·J.R. Tomasso

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Abstract

The 96‐h median‐lethal concentration (96h LC50) of total ammonia nitrogen (ammonia‐N) to fingerling shortnose sturgeon Acipenser brevirostrum was 149.8 ± 55.20 mg/L (mean ± SD, 17.9 ± 0.62°C, pH = 6.8–7.3). Calculated 96‐h LC50 for un‐ionized ammonia‐N was 0.58 ± 0.213 mg/L. The 96‐h LC50 of nitrite nitrogen to shortnose sturgeon fingerlings was 11.3 ± 8.17 mg/L (17.9 ± 0.31°C, <1.0 mg chloride/L, <1.0 mg magnesium/L, 1.8 mg calcium/L, 7.7 mg sodium/L).

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J. Jeffery Isely, J.R. Tomasso. 1998. Acute toxicity of ammonia and nitrite to shortnose sturgeon fingerlings. https://doi.org/10.1577/1548-8640(1998)060%253c0315%3Aatoaan%253e2.0.co%3B2

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