Toxicity of ammonia to three marine fish and three marine invertebrates
| Autor: | Steven M. Starbuck, Gregory D. Boardman, Douglas B. Hudgins, Xiayoun Li, David D. Kuhn |
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| Rok vydání: | 2004 |
| Předmět: |
Endpoint Determination
Health Toxicology and Mutagenesis Atlantic silverside Artificial seawater Sodium Chloride Management Monitoring Policy and Law Toxicology Lethal Dose 50 Animal science Ammonia Menidia Toxicity Tests Animals Seawater Chronic toxicity Analysis of Variance Dose-Response Relationship Drug biology Fishes General Medicine Marine invertebrates Hydrogen-Ion Concentration biology.organism_classification Sheepshead minnow Invertebrates United States Acute toxicity Shrimp Fishery |
| Zdroj: | Environmental Toxicology. 19:134-142 |
| ISSN: | 1522-7278 1520-4081 |
| DOI: | 10.1002/tox.20006 |
| Popis: | Laboratory toxicity tests were performed to obtain more data on the toxicity of ammonia to saltwater organisms. The standards for in-stream ammonia limits in marine environments presently are based on toxicity tests involving both freshwater and saltwater organisms. Acute tests (48 and 96 h) were performed at 20 degrees C, and chronic tests (7 days) were performed at 25 degrees C. Synthetic seawater and natural seawater from the Chesapeake Bay were used and compared. Included among the organisms tested were sheepshead minnow (14 days old), summer flounder (2 months old), Atlantic silverside (14 days old), mysid shrimp (less than 2 days old), ghost shrimp (10 days old), and quahog clam (9 months old). Based on these results, it seems the chronic criterion for ammonia in marine environments could be increased from 0.035 to 0.081 mg/L un-ionized ammonia, which would, of course, increase the chronic limit for total ammonia under typical saltwater conditions by a factor of 2.31. No difference was observed in the toxicity of ammonia in natural water compared to synthetic water for both the summer flounder and Atlantic silverside. Furthermore, the Atlantic silverside became more sensitive to ammonia as the salinity was increased from 14 to 22 ppt, but exhibited no change in toxicity response from 22 to 30 ppt. |
| Databáze: | OpenAIRE |
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