Zinc-65 specific activities in the migratory pacific hake Merluccius productus |
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| Authors: | N. H. Cutshall J. R. Naidu W. G. Pearcy |
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| Affiliation: | (1) School of Oceanography, Oregon State University, Corvallis, Oregon, USA;(2) Present address: Brookhaven National Laboratory, Upton, 11973 Long Island, New York, USA;(3) Oak Ridge National Laboratory, Operations Division, Bldg. 3037, Post Office Box X, 37830 Oak Ridge, Tennessee, USA |
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| Abstract: | Pacific hake [Merluccius productus (Ayres)], migrating northward along the California coastline during summer, encounter the southwesterly flowing plume of the Columbia River. Radioactive 65Zn associated with the plume waters is taken up by the migrating hake. Smaller fish reflect this contamination earlier than larger fish. Zinc-65 specific activities increase toward the north as far as 46°N, off the mouth of the Columbia River, and then decline northward along the coast of Washington. |
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