International study on Artemia: 31. Nutritional effects in toxicity tests: use of different Artemia geographical strains
Bengtson, D.A.; Beck, A.D.; Lussier, S.M.; Migneault, D.; Olney, C.E. (1984). International study on Artemia: 31. Nutritional effects in toxicity tests: use of different Artemia geographical strains, in: Persoone, G. et al. (Ed.) Proceedings of the International Symposium on Ecotoxicological Testing for the Marine Environment, Ghent, Belgium, september 12-14, 1983: volume 2. pp. 399-416 In: Persoone, G.; Jaspers, E.; Claus, C. (Ed.) (1984). Proceedings of the International Symposium on Ecotoxicological Testing for the Marine Environment, Ghent, Belgium, september 12-14, 1983: Volume 2. IZWO/State University Gent: Gent. VIII, 580 pp., more |
| Authors | | Top | - Bengtson, D.A.
- Beck, A.D.
- Lussier, S.M.
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| Abstract | A series of experiments was conducted to determine whether feeding marine organisms different geographical strains of Artemia prior to or during a toxicity test could significantly alter the results of the test. In each experiment, the test organisms were produced from laboratory brood stocks and divided into two groups; one was fed Reference brine shrimp, the other was fed San Pablo Bay brine shrimp. When the groups were then used simultaneously in toxicity tests, significant differences in the test results were obtained. The LC5O-values for the animals fed Reference Artemia, were always higher than those for animals fed San Pablo Bay Artemia, in certain cases by two to four times. Further, some tests were invalidated because of high control mortality in the group fed the San Pablo Bay strain. The findings indicate that the choice of brine shrimp can affect the outcome of a toxicity test, sometimes to the extent that the test is invalid. |
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