Abstract
Crabs, Oziotelphusa senex senex, were exposed to sublethal concentration (0.2 ppm) of fenvalerate, and changes in the protein metabolism of hepatopancreas and muscle were investigated. The levels of total and soluble proteins were decreased, whereas the levels of the free amino acids and activity levels of protease, alanine transaminase, aspartate transaminase, and glutamate dehydrogenase were significantly increased in the tissues of crabs exposed to fenvalerate. The changes were more pronounced with an increase in the period of exposure. The possible adaptive significance of these changes during fenvalerate intoxication in the crab is discussed.
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