||Effects of mirex, methoxychlor, and malathion on development of crabs /
Bookhout, Cazlyn G. ;
Costlow, Jr., John D.
||Duke Univ., Beaufort, N.C. Marine Lab.;Environmental Protection Agency, Gulf Breeze, Fla. Gulf Breeze Environmental Research Lab.
|| U.S. Environmental Protection Agency, Office of Research and Development, Gulf Breeze Environmental Research Laboratory ; Available through the National Technical Information Service,
||EPA/600/3-76/007; EPA-R-801128-02-2; EPA-ROAP-10AKC-37
Crabs, Effect of insecticides on. ;
Chlorine aliphatic compounds ;
Experimental data ;
Water pollution ;
Dose rates ;
Lethal dosage ;
Water pollution ;
Rhithropanopeus harrisii ;
Methenocyclobuta (cd) pentalenes ;
Blue crabs ;
Callinectes sapidus ;
Water pollution effects(Animals)
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||86 pages : illustrations ; 28 cm.
Laboratory experiments were conducted to determine the effects of mirex, methoxychlor and malathion on the larval development of Callinectes sapidus from the time of hatching until the first crab stage is reached. For comparison, similar investigations were made to ascertain the effects of methoxychlor and malathion on larval development of Rhithropanopeus harrisii. The effect of a range of concentrations of each insecticide on survival of larvae of C. sapidus and R. harrisii was determined, as well as concentrations which were sublethal and lethal. Zoeal and total development to the first crab stage of R. harrisii and C. sapidus was prolonged in relation to increased concentrations of methoxychlor and malathion. Other sublethal effects of methoxychlor and malathion included abnormal development of the pleopods of male R. harrisii and male C. sapidus early crab stages, and autotomy of the legs of R. harrisii megalopa and early crab stages. The developmental stages in which larvae are particularly sensitive vary in the two species and with the three insecticides.
Grant no. R-801128-02-2. Includes bibliographical references (pages 78-83). Microfiche.