Record Display for the EPA National Library Catalog

RECORD NUMBER: 1576 OF 1580

OLS Field Name OLS Field Data
Main Title Waterborne and Sediment-Source Toxicities of Six Organic Chemicals to Grass Shrimp ('Palaemonetes pugio') and Amphioxus ('Branchiostoma caribaeum').
Author Clark, J. R. ; Patrick, J. M. ; Moore, J. C. ; Lores, E. M. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL.
Year Published 1987
Report Number EPA/600/J-87/141;
Stock Number PB88-149034
Additional Subjects Sediments ; Toxicity ; Shrimps ; Aquatic animals ; Concentration(Composition) ; Insecticides ; Sorption ; Ecology ; Aromatic hydrocarbons ; Organic compounds ; Reprints ; Ecological concentrations ; Bioaccumulation ; Amphiouxus
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB88-149034 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 9p
Abstract
Grass shrimp (Palaemonetes pugio) were exposed to either waterborne or sediment-source concentrations of fenvalerate, cypermethrin, 1,2,4-trichlorobenzene (TCB), tributyltin oxide (TBTO), triphenyltin oxide, and di-n-butylphthalate in static or flow-through test systems. Similarly, amphioxus (Branchiostoma caribaeum) were tested with fenvalerate, TCB, and TBTO. The LC50 and no-effect and 100% mortality concentrations are reported from 96-hr and 10-day tests. The toxicity of contaminated sediments could be explained by chemical partitioning into overlying or interstitial water. Amphioxus is not recommended as a routine test species because of (1) difficulty in distinguishing severely affected from dead individuals, (2) inability to determine the status of burrowed animals without disrupting sediment, (3) their relative lack of sensitivity in acute exposures to toxic chemicals, and (4) difficulty in routine collection of sufficient numbers of animals. Grass shrimp, however, are useful as an epibenthic test species for waterborne and sediment-source toxicants.