Abstract
High concentrations of insecticide “fenthion” were detected in the muscles, livers and stomach contents of several dead Japanese Cranes (Grus japonensis) found at Memambetsu Town, northeastern Hokkaido. A follow-up survey in another five dead cranes revealed high fenthion concentrations in the pectoral muscle, liver and stomach contents of two cranes found at Shibecha Town and Tsurui Village in eastern Hokkaido. The concentrations of fenthion were 0.14 mg/kg-wet in muscle, 0.13 mg/kg-wet each in liver and 7.9 mg in stomach contents, respectively.
