Corbicula manilensis

Heptachlor and heptachlor epoxide have been detected in several aquatic species. Heptachlor was measured in shrimp collected from the Calcasieu River/Lake Complex in Louisiana at concentrations ranging from 10 to 750 ppb (Murray and Beck 1990). A survey of organic compound concentrations in whole body tissues of the Asiatic clam Corbicula manilensis was conducted on the Apalachicola River in northwest Florida in 1979-1980 as part of the Apalachicola River Quality Assessment. Heptachlor epoxide was detected in the whole body tissue of the clam at concentrations ranging from <0.1 to 0.6 ppb, with a median concentration of 0.3 ppb (Elder and Mattraw 1984). 

Elder JF, Mattraw HC Jr. 1984. Accumulation of trace elements, pesticides, and polychlorinated biphenyls in sediments and the clam corbicula manilensis of the Apalachicola River, Florida. Arch Environ Contam Toxicol 13 453-469. 

Hartley DM, Johnston JB. 1983. Use of the fresh water clam Corbicula manilensis as a monitor for organochlorine pesticides. Bull Environ Contam Toxicol 31 33-40. 

Hartley, D.M. and J.B. Johnston. Use of the Freshwater Clam Corbicula manilensis as a Monitor for Organochlorine Pesticides, Bull. Environ. Contam. Toxicol., 31(l) 33-40 (1983). 

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