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Main Title Cycling of Xenobiotics through Marine and Estuarine Sediments.
Author D'Asaro, Charles N. ; Wilkes, Frank G. ;
CORP Author University of West Florida, Pensacola. Dept. of Biology.;Environmental Research Lab., Gulf Breeze, FL.
Year Published 1982
Report Number EPA-R804458; EPA-600/3-82-074;
Stock Number PB82-239252
Additional Subjects Pesticides ; Water pollution ; Graphs(Charts) ; Bioassays ; Sediments ; Chemical compounds ; Toxicology ; Lugworm ; Kepone ; Methyl parathion ; Arenicola cristata ; Microcosms ; Path of pollutants ; Dredge spoil ; Sodium pentachlorophenate ; Xenobiotics
Library Call Number Additional Info Location Last
NTIS  PB82-239252 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 51p
The results of five broadly defined projects are reported. Cycling of xenobiotics was studied with a photo-bioassay system that used time-lapse photography to evaluate effects of Kepone and sodium pentachlorophenate on feeding activity of the lugworm, Arenicola cristata. Radio-labeled methyl parathion was used to demonstrate fate and effect in microcosms inhabited by lugworms. Uptake and depuration of chrysene by lugworms was evaluated in a flow-through system. A toxic sediment bioassay system was developed to provide a means to test effects of dredge spoil. Kepone-sorbed sediment and dredge spoil from James River and Houston Ship Channel were tested for 28 days. Long-term tests (100 days), with the same systems, were used to evaluate effects of a specific drilling mud from an active exploratory platform. Predator-prey tests of sublethal effects of xenobiotics demonstrated effect in one-prey and two-prey systems. Evaluation of sublethal effects, such as avoidance of pollution gradients, was studied in a trough-type avoidance-response system. The system recorded responses automatically and independently of an observer. Tests with pinfish demonstrated that they will avoid chlorine-produced oxidants. Usefulness of small-scale microcosms was evaluated by developing methods to culture polychaetes and crustaceans. Various aspects of the biology of selected species were studied.