Uptake and excretion of organochlorine pesticides by Nereis virens under normoxic and hypoxic conditions

Journal Article · Mon Feb 01 00:00:00 EST 1988 · Bull. Environ. Contam. Toxicol.; (United States)

DOI:https://doi.org/10.1007/BF01881035· OSTI ID:5428791

Haya, K; Burridge, L E

The marine polychaete worm, Nereis virens, is resistant to organochlorine pesticides. When exposed to each of five pesticides (endosulfan, chlordane, endrin, dieldrin, and DDT) in concentrations ranging from 0.03 mg/L (DDT) to 22.0 mg/L (chlordane), only endosulfan and chlordane killed Nereis. In comparison, the same compounds were much more toxic to another marine invertebrate, Crangon septemspinosa. The authors wondered if the resistance of N. virens to organochlorines was related to their response to hypoxia. N. virens is a sediment dweller often found in intertidal regions and consequently may experience periods of severe oxygen deprivation; varying degrees of hypoxia can initiate a switch to anaerobic energy metabolism. When N. virens encounter hypoxic conditions, they can also exhibit a compensatory ventilation response. In the present study, the authors measured the bioaccumulation of endosulfan, dieldrin, and DDT by N. virens under normoxic and hypoxic conditions.

• Research Organization: Dept. of Fisheries and Oceans, St. Andrews, New Brunswick
• OSTI ID: 5428791
• Journal Information: Bull. Environ. Contam. Toxicol.; (United States), Vol. 40:2
• Country of Publication: United States
• Language: English

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