Stress Responses And Vibriosis Induced By
Petroleum Hydrocarbons In The Penaeid Shrimp
Metapenaeus Dobsoni (Miers)
Author(s)
M. Paul, N.R. Menon & R. Philip
Abstract
Experiments with juveniles and subadults of the penaeid shrimp Metapenaeus
dobsoni (Miers) subjected to lethal and sublethal toxicity tests revealed that
toxicity of the water accommodated fraction (WAF) of Bombay High Crude
were dose-, time-, size- and moult stage-dependant. 13-15% of shrimps (size 30-
35 mm) exposed to 1 ppm and 5-8% of shrimps exposed to 4 ppm beyond 18
days in a 30-days moulting pattern experiment developed symptoms of vibriosis.
It is significant that the shrimps exposed to 8 ppm and those maintained under
control conditions did not show any signs of vibriosis. A chitinoclastic Vibrio
species was isolated from diseased individuals and Kochs Postulate was
successfully proved. Chronic e
Keywords
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