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.
Filter Total Items: 1488
Thiamine and thiaminase status in forage fish of salmonines from Lake Michigan Thiamine and thiaminase status in forage fish of salmonines from Lake Michigan
Dietary sources of thiamine (vitamin B1) and thiamine-degrading enzymes (thiaminases) are thought to be primary factors in the development of thiamine deficiency among Great Lakes salmonines. We surveyed major forage fish species in Lake Michigan for their content of thiamine, thiamine vitamers, and thiaminase activity. Concentrations of total thiamine were similar (P ≤ 0.05) among most...
Authors
D. E. Tillitt, J.L. Zajicek, S.B. Brown, L. R. Brown, J.D. Fitzsimons, D. C. Honeyfield, M.E. Holey, G.M. Wright
Development of thiamine deficiencies and early mortality syndrome in lake trout by feeding experimental and feral fish diets containing thiaminase Development of thiamine deficiencies and early mortality syndrome in lake trout by feeding experimental and feral fish diets containing thiaminase
We conducted a laboratory investigation on the consequences of feeding predatory salmonids either experimental diets low in thiamine or diets containing alewife Alosa pseudoharengus. In experiment 1, adult lake trout Salvelinus namaycush were fed experimental diets containing bacterial thiaminase. In experiment 2, adult lake trout were fed natural prey species, alewives, and bloaters...
Authors
D. C. Honeyfield, J. P. Hinterkopf, J.D. Fitzsimons, D. E. Tillitt, J.L. Zajicek, S.B. Brown
Selenium in the Blackfoot, Salt, and Bear River Watersheds Selenium in the Blackfoot, Salt, and Bear River Watersheds
Nine stream sites in the Blackfoot River, Salt River, and Bear River watersheds in southeast Idaho, USA were sampled in May 2001 for water, surficial sediment, aquatic plants, aquatic invertebrates, and fish. Selenium was measured in these aquatic ecosystem components, and a hazard assessment was performed on the data. Water quality characteristics such as pH, hardness, and specific...
Authors
S. J. Hamilton, K.J. Buhl
Biochemical effects of lead, zinc, and cadmium from mining on fish in the Tri-States district of northeastern Oklahoma, USA Biochemical effects of lead, zinc, and cadmium from mining on fish in the Tri-States district of northeastern Oklahoma, USA
We assessed the exposure of fish from the Spring and Neosho Rivers in northeast Oklahoma, USA, to lead, zinc, and cadmium from historical mining in the Tri-States Mining District (TSMD). Fish (n = 74) representing six species were collected in October 2001 from six sites on the Spring and Neosho Rivers influenced to differing degrees by mining. Additional samples were obtained from the...
Authors
Christopher J. Schmitt, Jeffrey J. Whyte, William G. Brumbaugh, Donald E. Tillitt
Leachability of protein and metals incorporated into aquatic invertebrates: are species and metals-exposure history important? Leachability of protein and metals incorporated into aquatic invertebrates: are species and metals-exposure history important?
To partially simulate conditions in fish intestinal tracts, we leached six groups of metals-contaminated invertebrates at pH 2 and pH 7, and analyzed the concentrations of four metals (Cd, Cu, Pb, and Zn) and total protein in the leachates. Four of the groups of invertebrates were benthic macroinvertebrates collected from metals-contaminated rivers (the Clark Fork River in Montana and...
Authors
J.S. Meyer, M.J. Suedkamp, J.M. Morris, A.M. Farag
Changes in productivity and contaminants in bald eagles nesting along the lower Columbia River, USA Changes in productivity and contaminants in bald eagles nesting along the lower Columbia River, USA
Previous studies documented poor productivity of bald eagles (Haliaeetus leucocephalus) in the lower Columbia River (LCR), USA, and elevated p,p???-dichlorodiphenyldichloroethylene (DDE), polychlorinated biphenyls (PCBs), dioxins, and furans in eagle eggs. From 1994 to 1995, we collected partially incubated eggs at 19 of 43 occupied territories along the LCR and compared productivity and...
Authors
J.A. Buck, R.G. Anthony, C.A. Schuler, F.B. Isaacs, D. E. Tillitt
A field assessment of long-term laboratory sediment toxicity tests with the amphipod Hyalella azteca A field assessment of long-term laboratory sediment toxicity tests with the amphipod Hyalella azteca
Response of the amphipod Hyalella azteca exposed to contaminated sediments for 10 to 42 d in laboratory toxicity tests was compared to responses observed in controlled three-month invertebrate colonization exposures conducted in a pond. Sediments evaluated included a sediment spiked with dichlorodiphenyldichloroethane (DDD) or dilutions of a field sediment collected from the Grand...
Authors
Christopher G. Ingersoll, Ning Wang, Jeannie M. R. Hayward, John R. Jones, Susan B. Jones, D. Scott Ireland
Selenium impacts on razorback sucker, Colorado River, Colorado: I. Adults Selenium impacts on razorback sucker, Colorado River, Colorado: I. Adults
Adult razorback sucker (Xyrauchen texanus) were exposed to various selenium concentrations in ponds and isolated river channels of the Colorado River near Grand Junction, CO, to determine effects on their growth and residue accumulation over an 11-month period. Adults at Horsethief ponds were fed a commercial diet, whereas fish at Adobe Creek channel and North Pond foraged on natural...
Authors
S. J. Hamilton, K.M. Holley, K.J. Buhl, F.A. Bullard, L.K. Weston, S.F. McDonald
Aquatic habitat mapping with an acoustic doppler current profiler: Considerations for data quality Aquatic habitat mapping with an acoustic doppler current profiler: Considerations for data quality
When mounted on a boat or other moving platform, acoustic Doppler current profilers (ADCPs) can be used to map a wide range of ecologically significant phenomena, including measures of fluid shear, turbulence, vorticity, and near-bed sediment transport. However, the instrument movement necessary for mapping applications can generate significant errors, many of which have not been...
Authors
David Gaeuman, Robert B. Jacobson
Early mortality syndrome in Great Lakes salmonines Early mortality syndrome in Great Lakes salmonines
Early mortality syndrome (EMS) is the termused to describe an embryonic mortality affectingthe offspring of salmonines (coho salmonOnco-rhynchus kisutch, Chinook salmonOncorhynchustshawytscha, steelhead [anadromous rainbow troutOncorhynchus mykiss], brown troutSalmo trutta,and lake trout,Salvelinus namaycush) in LakesMichigan and Ontario and, to a lesser extent, LakesHuron and Erie...
Authors
Dale C. Honeyfield, Scott B. Brown, John D. Fitzsimons, Donald E. Tillitt
Temporal and spatial variation of early mortality syndrome in salmonids from Lakes Michigan and Huron Temporal and spatial variation of early mortality syndrome in salmonids from Lakes Michigan and Huron
To assess the extent that early mortality syndrome (EMS) impacts different Pacific salmonid stocks and the association of EMS with thiamine, we collected eggs of coho salmon Oncorhynchus kisutch from three Lake Michigan tributaries (Platte River, Thompson Creek, and Root River) in 1996-2001. We also obtained eggs of Chinook salmon O. tshawytscha from Lake Michigan (Little Manistee River)...
Authors
M. Wolgamood, J.G. Hnath, S.B. Brown, K. Moore, S.V. Marcquenski, D. C. Honeyfield, J. P. Hinterkopf, J.D. Fitzsimons, D. E. Tillitt
Relationship between mercury accumulation in young-of-the-year yellow perch and water-level fluctuations Relationship between mercury accumulation in young-of-the-year yellow perch and water-level fluctuations
A three-year (2001−2003) monitoring effort of 14 northeastern Minnesota lakes was conducted to document relationships between water-level fluctuations and mercury bioaccumulation in young-of-the-year (YOY) yellow perch (Perca flavescens) collected in the fall of each year at fixed locations. Six of those lakes are located within or adjacent to Voyageurs National Park and are influenced...
Authors
J.A. Sorensen, L.W. Kallemeyn, M. Sydor