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COMPARATIVE ACUTE TOXICITIES OF SEVERAL PESTICIDES AND METALS TO MYSIDOPSIS BAHIA AND POSTLARVAL PENAEUS DUORARUM
Citation:
Cripe, G. COMPARATIVE ACUTE TOXICITIES OF SEVERAL PESTICIDES AND METALS TO MYSIDOPSIS BAHIA AND POSTLARVAL PENAEUS DUORARUM. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-95/013, 1994.
Description:
Effects of toxic chemicals on estuarine and marine crustaceans are often evaluated using the mysid, Mysidopsis bahia. n a literature survey of results of acute toxicity tests with estuarine crustaceans, Mysidae and Penaeidae were generally the two most sensitive families. owever, neither family was consistently more sensitive (higher LC50 divided by lower LC50 > two). ysids were 54 times more sensitive to pyrethroids than penaeids (N = three studies). et penaeids were 36 times more sensitive (N = 4 studies) to organochlorines and 5 times more sensitive (N = 17 studies) to organophosphates than mysids. cute exposures of < 24-hr-old mysids and second post larvae of the pink shrimp, Penaeus duorarum, were conducted to compare responses of these estuarine crustaceans to each other and to values from the literature of other crustaceans tested with the same chemicals. he test compounds were chloride salts of cadmium, copper and zinc; the organophosphates: diazinon, fenthion and malathion; and several pyrethroids: cypermethrin, fenvalerate and permethrin. esults showed that pyrethroid toxicity was similar with mysids and post larval pink shrimp, organophosphate toxicity was within a factor of2.7 for both species and mysids were 3 to 26 times more sensitive to the metals than larval pink shrimp.