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INCREASED REPRODUCTION BY MYSIDS (MYSIDOPSIS BAHIA) FED WITH ENRICHED ARTEMIA SPP. NAUPLII
Citation:
Kuhn, A.H., D. Bengtson, AND K. Simpson. INCREASED REPRODUCTION BY MYSIDS (MYSIDOPSIS BAHIA) FED WITH ENRICHED ARTEMIA SPP. NAUPLII. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-91/234.
Description:
A study was conducted to assess effects of four diets on reproduction by the mysid Mysidopsis bahia in routine culture conditions. wo experiments were performed: the first lasted under semistatic conditions and the second lasted 60 d under flow-through conditions. he objective was to determine which nutritional options. including supplementation of the normal diet of brine shrimp (Artemia spp.) with other live food (rotifers) or with an artificial Artemia spp. enrichment product, AEP (Selco), most effectively increased growth and reproduction of the mysids. Diet treatments included reference artemia nauplii as a control; anemia nauplii with no detectable long-chain highly unsaturated fatty acids; the latter anemia diet enriched with AEP: and reference anemia plus live rotifers (Brachionus plicalilis). ysids fed AEP-enriched anemia had significantly higher percentages of females with eggs developed on days 10, 1, and 13 posthatching than did mysids fed the other diets. eekly subsamples of population densities showed that the AEP treatments consistently produced larger numbers of young. he results indicated that AEP-enriched anemia were an efficient and cost-effective means of boosting production of mysid cultures. he AEP also was found to be free of contaminants and therefore suitable for culture of toxicological test organisms.