title: Bioaccumulation kinetics of the organochlorine pesticide mirex in amphipods.
abstract: The survival of Hyallela azteca was found to be reduced relative to that of Crangonyx pseudogracilis during exposure to mirex in water for a 13-day period. This phenomenon appeared to be correlated to greater bioaccumulation of mirex by H. azteca than by C. pseudogracilis. H. azteca was found to exhibit two-compartment kinetics, while C. pseudogracilis was described by single-compartment kinetics. The bioaccumulation differences between the two species were the result of both uptake and clearance differences: uptake into a "fast" compartment of H. azteca, greater uptake into the slow compartment of H. azteca relative to the single compartment of C. pseudogracilis, and greater clearance from the single C. pseudogracilis compartment relative to the slow compartment of H. azteca.
mesh_terms: D000818:Animals; D001822:Body Burden; D003445:Crustacea / Q000378:metabolism*; D007306:Insecticides / Q000378:metabolism*; D007700:Kinetics; D008917:Mirex / Q000378:metabolism*; D013045:Species Specificity; D014873:Water Pollutants / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D007306:Insecticides; D014873:Water Pollutants; D014874:Water Pollutants, Chemical; D008917:Mirex