TOXICITY OF WATER SOLUBLE FRACTIONS OF CRUDE OIL TO FISH، LUTJANUS ARGENTIMACULATUS AND SHRIMP، PENAEUS MONODON

The acute toxicity of a Malaysian crude oil to red snapper، Lutjanus argentimaculatus، black tiger shrimp and Penaeus monodon were investigated. The animals were exposed to water soluble fractions (WSF) of crude oil in a flow-through bioassay system and the toxicants were analyzed by gas chromatography (GC) and gas chromatography and mass spectrometer (GC-MS). The 96 h LC50 values of the WSF of crude oil for fish and shrimp were 3. 24 ± 0. 21 and 8. 52 ± 0. 89 ppm of WSF of crude oil، respectively. In this investigation، the fish were more sensitive to crude oil than the shrimp، with respect to the similarity in their habitations.