Aquatic environments fenitrothion

Two research programs were conducted to examine the fate of aminocarb and fenitrothion insecticides in aquatic environments. In laboratory experiments, the dissipation of these chemicals in simple model ecosystems were studied. In the second experiment, the fate and persistence of these two chemicals were studied in forest streams following a semi-operational spray program in New Brunswick in 1982. 

The fate of fenitrothion in the environment has been a subject of great interest in Canada since the late 1960 s because of its use for control of the Spruce Budworm (Chorlstoneura fumiferana). Laboratory and field experiments have established that fenitrothion persists for only 1 to several days in natural waters and is degraded primarily by photolysis and microbial activity (1-4). Sorption by sediments, aquatic macrophytes and microphytes are also important paths of loss of the insecticide from the water column (2-5). 

Takimoto, Y., Miyamoto, J. (1976) Studies on the accumulation and metabolism of sumithion in fish. J. Pest. Sci. 1, 261-271. Takimoto, Y., Ohshima, M., Miyamoto, J. (1987) Comparative metabolism of fenitrothion in aquatic organisms. I. Metabolism in the euryhaline fish, Oryzalias latipes and Mugil cephalus. Ecotox. Environ. Saf. 13, 104—117. 

Takimoto Y, Ohshima M, Miyamoto J (1987b) Comparative metabolism of fenitrothion in aquatic organisms. III. Metabolism in the crustaceans, Daphnia pulex and Palaemon paucidens. Ecotoxicol Environ Saf 13 126-134... 

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