||Effects of several metals on smolting of coho salmon /
Lorz, Harold W. ;
Williams, Ronald H. ;
Fustish, Charles A.
||Oregon Dept. of Fish and Wildlife, Corvallis.;Corvallis Environmental Research Lab., OR.
|| Environmental Protection Agency, Office of Research and Development, Corvallis Environmental Research Laboratory ; For sale by the National Technical Information Service,
Coho salmon--Diseases. ;
Fishes--Effect of water pollution on. ;
Physiological effects ;
Water pollution effects(Animals) ;
Coho salmon ;
Oncorhynchus kisutch ;
Adenosine triphosphatase ;
Toxic substances ;
Heavy metals ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||xi, 85 pages : illustrations ; 28 cm.
Exposure to sublethal levels of copper in freshwater reduces Na,K-activated gill ATP'ase in coho salmon and results in latent effects such as poor migration and poor survival in seawater (EPA-660/3-75-009). Similar tests with cadmium, chromium, mercury nickle and zinc indicated that only mercury produced similar effects. Additional tests with cadmium and zinc plus 10 micrograms/liter of copper produced latent effects considerably more severe than those produced by 10 micrograms Cu/liter by itself. Histological examination of liver, kidney and gill showed no effects of cadmium or zinc, either singly or in combination with copper. Cadmium was found to accumulate in gill, liver and kidney, but only minor amounts occurred in muscle tissue. A seawater-entry test (SET) is recommended for detecting latent effects of toxicants on salmonid smolts.
Contract no. R-804283. Issued Sept. 1978. Includes bibliographical references (pages 83-84). Microfiche.