Forty-two seals and sea lions found dead along the Oregon Coast were examined for parasites and associated pathology. Nematode infections of the lung and/or gastrointestinal tract were the primary cause of death in 5 of 42 animals examined. New distribution records were established for Pricetrema zalophi and Zalophotrema hepaticum. New host records include Z. hepaticum and Diphyllobothrium cordatum in the Steller's sea lion (Eumetopias jubatus); Nanophyetus salmincola in the California sea lion (Zalophus californianus); P. zalophi in the harbor seal (Phoca vitulina); and P. zalophi, Trigonocotyle sp. and Otostrongylus circumlitus in the northern elephant seal (Mirounga angustirostris).
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1 July 1978
PARASITES AND ASSOCIATED PATHOLOGY OBSERVED IN PINNIPEDS STRANDED ALONG THE OREGON COAST
RICHARD K. STROUD