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Paper Information

Journal:   ARCHIVES OF RAZI INSTITUTE   December 2002 , Volume - , Number 54; Page(s) 49 To 64.
 
Paper: 

STRESS RESPONSE OF RED SNAPPER (LUTJANUS ARGENTIMACULATUS) EXPOSED TO SUBLETHAL CONCENTRATIONS OF CRUDE OIL

 
 
Author(s):  AKBARI S.*, SHARIF M.
 
* FACULTY OF VETERINARY MEDICINE, SHIRAZ UNIVERSITY, 71344 SHIRAZ, IRAN
 
Abstract: 

Stress response indices including plasma cortisol, glucose, cholesterol, and total plasma proteins of red snapper (Lutjanus argentimaculatus) exposed to three different concentrations of water-soluble fraction (WSF) of a crude oil were investigated. The experiment was conducted in a flow-through seawater system under tropical conditions and the concentrations of the toxicant were assayed based on naphthalenes contents of WSF of crude oil as 0.107, 0.052 and 0.028 ppm. Sublethal exposure to WSF of crude oil had a marked impact (P<0.05) on plasma cortisol, glucose, cholesterol and total plasma protein. Dose-response relationships were observed in most of the affected parameters. The results revealed that, in the experimental fish both the primary and secondary stress responses were activated following exposure to different concentrations of the toxicant. The immunosuppressive effects of WSF of crude oil on fish following activation of stress responses are discussed.

 
Keyword(s): STRESS RESPONSE, CRUDE OIL, CORTISOL, GLUCOSE, CHOLESTEROL, PLASMA PROTEINS, AND RED SNAPPER, FISH
 
References: 
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