Waterborne and sediment-source toxicities of six organic chemicals to grass shrimp (Palaemonetes pugio) and amphioxus (Branchiostoma caribaeum)

Technical Report · Thu Jan 01 04:00:00 EST 1987

OSTI ID:5067028

Clark, J R; Patrick, J M; Moore, J C; Lores, E M

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.

• Research Organization: Environmental Protection Agency, Gulf Breeze, FL (USA). Environmental Research Lab.
• OSTI ID: 5067028
• Report Number(s): PB-88-149034/XAB; EPA-600/J-87/141
• Country of Publication: United States
• Language: English

Related Subjects

520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
CRUSTACEANS
DECAPODS
ECOLOGY
ENVIRONMENTAL EXPOSURE
INSECTICIDES
INVERTEBRATES
MATERIALS
ORGANIC COMPOUNDS
PESTICIDES
SEDIMENTS
SHRIMP
SORPTION
TOXIC MATERIALS
TOXICITY