Publications
Since 1966, CERC scientists have published over 2000 peer reviewed articles and reports. Browse our publications below or search CERC's publications by author or title through the USGS Publications Warehouse.
If you need assistance in locating a specific CERC publication, please contact the CERC Librarian.
Filter Total Items: 1407
Editorial: Environmental contaminants and fish-dependent birds
No abstract available.
Authors
Christopher J. Schmitt, M.G. Henry
Bioavailability of Pb and Zn from mine tailings as indicated by erythrocyte aminolevulinic acid dehydratase (ALA-D) activity in suckers (Pisces: catostomidae)
The activity of the erythrocyte enzyme δ-aminolevulinic acid dehydratase (ALA-D) was measured in 35 catostomids (black redhorse, Moxostoma duquesnei; golden redhorse, M. erythrurum; northern hogsucker, Hypentelium nigricans) collected from three sites on a stream contaminated with Pb-, Cd-, and Zn-rich mine tailings and from an uncontaminated site upstream. Enzyme activity was expressed in terms o
Authors
Christopher J. Schmitt, F. James Dwyer, Susan E. Finger
Organochlorine residues in freshwater fish, 1976-1979: National Pesticide Monitoring Program
No abstract available
Authors
C.J. Schmitt, M.A. Ribick, J. L. Ludke, T.W. May
Accumulation, sublethal effects, and safe concentration of a refined oil as evaluated with cutthroat trout
Cutthroat trout (Salmo clarki) were exposed for 90 days in the laboratory to a refined oil collected from the North Platte River at a seepage site below the American Oil Company refinery at Casper, Wyoming. Fish were exposed to five concentrations and a control, and seven biological responses (survival, growth, gill pathology, liver pathology, caudal fin erosion, caudal fin pathology and swimming
Authors
D. F. Woodward, R. G. Riley, C. E. Smith
National Pesticide Monitoring Program: organochlorine residues in freshwater fish, 1976-79
No abstract available.
Authors
Christopher J. Schmitt, M. A. Ribick, J. Larry Ludke, Thomas W. May
Toxaphene residues in fish: Identification, quantification, and confirmation at part per billion levels
No abstract available.
Authors
M. A. Ribick, George R. Dubay, Jimmie D. Petty, David L. Stalling, Christopher J. Schmitt
Organochlorine residues in fish: National Pesticide Monitoring Program, 1970-74
As part of the National Pesticide Monitoring Program, the U.S. Fish and Wildlife Service analyzed organochlorine contaminant residues in fish samples collected from about 100 stations each year from 1970 to 1974. During this period, mean residues of DDT and its metabolites declined nationally but remained widespread, and high concentrations continued to be present in areas where DDT use was extens
Authors
Christopher J. Schmitt, J. Larry Ludke, D.F. Walsh
Mercury in the muscle tissue of fish from three northern Maine lakes
There is evidence that fish in Canadian wilderness areas exhibit elevated mercury levels because of the oligotrophic nature of the lakes they inhabit (BROUZES et al. 1977). D'ITRI et al. (1971) reported higher levels of mercury in trout from oligotrophic waters than in trout from eutrophic waters in unpolluted areas. They attributed part of the difference to differences in the food of the fish in
Authors
J.J. Akielaszek, T.A. Haines
Toxicity of five forest insecticides to cutthroat trout and two species of aquatic invertebrates
The Northern Rocky Mountain region has had scattered infestation of the western spruce budworm Christoneura occidentalis since the early 1900's (U.S. DEPARTMENT OF AGRICULTURE (USDA) 1976b). On the basis of aerial surveys in 1975, TUNNOCK et al. (1976), estimated that budworm defoliation occurred on 2,278,804 acres of six National Forests in Montana. Since the use of DDT was banned in 1972, there
Authors
D. F. Woodward, W.L. Mauck
Effect of feeding and of DDT on the activity of hepatic glucose 6- phosphate dehydrogenase in two salmonids
The specific activity of liver glucose 6-phosphate dehydrogenase in yearling rainbow trout remained unchanged when the fish were starved for periods as long as 8 weeks and when starved animals were fed diets of various compositions. Injection of insulin concurrently with refeeding also failed to alter the specific activity of the enzyme in trout. The absence of a dietary or insulin influence on th
Authors
Donald R. Buhler, P. Benville
Chronic oral DDT toxicity in juvenile coho and chinook salmon
Technical and p,p′-DDT was incorporated into test diets and fed to juvenile chinook and coho salmon for periods as long as 95 days. Pure p,p′-DDT was slightly more toxic to young salmon than was the technical DDT mixture. Chinook salmon appeared to be 2–3 times more sensitive to a given concentration of DDT in the diet than were coho salmon. The size of the fish greatly influenced toxicity, smalle
Authors
Donald R. Buhler, Mary E. Rasmusson, W.E. Shanks
Role of intestinal microflora in the degradation of DDT by rainbow trout (Salmo gairdneri)
Though liver homogenates show apparent microsomal enzyme DDT-dehydrochlorinase activity, in the intact fish the intestinal microflora play a major role in DDT detoxication. Since the presence of this microflora in fish depends on the recent intake of food (12), the rate of detoxication and hence the toxicity of ingested DDT to the rainbow trout will probably depend somewhat on the available food s
Authors
Gary Wedemeyer