title: Toxicity and bioconcentration of BHC and lindane in selected estuarine animals.
abstract: Flow-through, 96-hr bioassays were conducted to determine the acute toxicity of technical BHC and lindane to several estuarine animals. Test animals and their respective 96-hr lindane LC50 values were: mysid (Mysidopsis bahia), 6.3 microgram/L; pink shrimp (Penaeus duorarum), 0.17 microgram/L; grass shrimp (Palaemonetes pugio), 4.4 microgram/L; sheepshead minnow (Cyprinodon variegatus), 104 microgram/L; and pinfish (Lagodon rhomboides), 30.6 microgram/L. The 96-hr LC50 values for pink shrimp and pinfish exposed to BHC were 0.34 and 86.4 microgram/L, respectively. Two BHC bioconcentration studies were conducted with the oyster, Crassostrea virginica, and pinfish. After 28 days exposure, oysters bioconcentrated an average of 218 X the BHC measured in exposure water, while pinfish bioconcentrated 130 X in their edible tissues and 617 X in offal. After one week in BHC-free sea water, no detectable residues were measured in oysters or pinfish.
mesh_terms: D000818:Animals; D033364:Decapoda / Q000378:metabolism*; D005399:Fishes / Q000378:metabolism*; D001556:Hexachlorocyclohexane / Q000378:metabolism / Q000633:toxicity*; D010125:Ostreidae / Q000378:metabolism*; D013997:Time Factors
chemical_list: D001556:Hexachlorocyclohexane