Effects of Aroclor(R)1254 on Laboratory-Reared Embryos and Fry of Sheepshead Minnows (Cyprinodon variegatus)
- 1 July 1974
- journal article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 103 (3) , 582-586
- https://doi.org/10.1577/1548-8659(1974)103<582:eoarol>2.0.co;2
Abstract
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; α = 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.Keywords
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