Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: DDT residues in birds and mammals of Montery Bay, California
Student Author(s): Macovich, Paul R.
Faculty Advisor(s): Morejohn, G. Victor
Pages: 12
Location: Final Papers Biology 175H
Date: June 1969
Keywords: DDT
Abstract: Pesticidal pollution of Monterey Bay, California has been suggested as the cause of an unusually large number of bird deaths reported in the past year. Analyses were performed on a series of dead or dying birds and mammals taken from the Monterey Bay area. Concentrations of DDT and its analogs DDE and DDD were determined by gas chromatography. Results were as follows: 107, 105, and 155 ppm DDE in livers of three Brandt's cormorants; 192 and 292 ppm DDE in livers of two Western grebes; 2.35 ppm DDE in the liver and 121 ppm DDE in the sub-cutaneous fat of an arctic loon; 4.25 ppm DDE in the liver and 0.61 ppm DDE in the ovary of a second arctic loon; 373 ppm DDE in the liver of a fork-tailed petrel; 412 ppm DDE in the liver of an ashy petrel; 805 ppm DDE in the liver of a Western gull; 41.5 ppm DDE in the liver of a ring-billed gull; 1.2 ppm DDE in the liver of an aborted Stellar sea lion pup; and 3.94 and 89 ppm DDE in the livers of two immature Californian sea lions.