ORGANOCHLORINE INSECTICIDE CONCENTRATIONS IN FISH OF THE DES-MOINES RIVER, IOWA, 1977-78

  • 1 January 1981
    • journal article
    • research article
    • Vol. 15  (2) , 86-89
Abstract
Organochlorine insecticides were measured in fish of the Des Moines River, Iowa, in 1977-1978 to determine whether concentrations exceeded allowable levels and to compare differences among species. Significant differences in mean concentrations of dieldrin, .SIGMA.DDT and heptachlor epoxide in whole-body samples of 7 spp. of fish, Dorosoma cepedianum, Carpiodes carpio, Cyprinus carpio, Ictalurus punctatus, Pomoxis annularis, Micropterus salmoides, Stizostedion vitreum, could not be adequately explained by body size, position of species in the food chain or percent body fat.