| Autor: |
Schimmel, Steven C., Hansen, David J., Forester, Jerrold |
| Zdroj: |
Transactions of the American Fisheries Society; July 1974, Vol. 103 Issue: 3 p582-586, 5p |
| Abstrakt: |
Eggs of the sheepshead minnow (Cyprinodon variegatus) were artificially fertilized and maintained at temperatures from 15 to 35 C and in salinities from 0 to 35‰ to determine efficient culture conditions. Fertilization was not affected by temperature or salinity ranges chosen, but hatching success was greatest (x2; a = 0.01) at a temperature range of 24 to 35 C and a salinity range of 15 to 30‰. Artificially fertilized sheepshead minnow eggs were exposed to logarithmic concentrations of Aroclor 1254 (10.0 to 0.1 µg/liter) in seawater averaging 30 C and 24‰ in a flow-through bioassay. Fertilization was not affected but significantly fewer embryos developed in the 10.0 µg/liter concentration, and fewer fry survived in concentrations greater than 0.1 µg/liter. Fry were more susceptible to Aroclor 1254 than were embryos, juveniles, or adults. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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