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Premature Births in California Sea Lions: Association with High Organochlorine Pollutant Residue Levels

Robert L. DeLong, William G. Gilmartin and John G. Simpson
Science
New Series, Vol. 181, No. 4105 (Sep. 21, 1973), pp. 1168-1170
Stable URL: http://www.jstor.org/stable/1736551
Page Count: 3
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Premature Births in California Sea Lions: Association with High Organochlorine Pollutant Residue Levels
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Abstract

Premature pupping in California sea lions has been noted on the breeding islands since 1968. Organochlorine pesticides and polychlorinated biphenyl residues were two to eight times higher in tissues of premature parturient females and pups than in similar tissues of full-term parturient females and pups collected on San Miguel Island in 1970.

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