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: 1516
Widespread occurrence of intersex in black basses (Micropterus spp.) from U.S. rivers, 1995-2004 Widespread occurrence of intersex in black basses (Micropterus spp.) from U.S. rivers, 1995-2004
Intersex occurrence in freshwater fishes was evaluated for nine river basins in the United States. Testicular oocytes (predominantly male testes containing female germ cells) were the most pervasive form of intersex observed, even though similar numbers of male (n = 1477) and female (n = 1633) fish were examined. Intersex was found in 3% of the fish collected. The intersex condition was...
Authors
J.E. Hinck, V. S. Blazer, C. J. Schmitt, D. M. Papoulias, D. E. Tillitt
Hierarchical Bayesian Markov switching models with application to predicting spawning success of shovelnose sturgeon Hierarchical Bayesian Markov switching models with application to predicting spawning success of shovelnose sturgeon
The timing of spawning in fish is tightly linked to environmental factors; however, these factors are not very well understood for many species. Specifically, little information is available to guide recruitment efforts for endangered species such as the sturgeon. Therefore, we propose a Bayesian hierarchical model for predicting the success of spawning of the shovelnose sturgeon which...
Authors
S. H. Holan, G. M. Davis, M. L. Wildhaber, A. J. DeLonay, D. M. Papoulias
Potential effects of environmental contaminants on P450 aromatase activity and DNA damage in swallows from the Rio Grande and Somerville, Texas Potential effects of environmental contaminants on P450 aromatase activity and DNA damage in swallows from the Rio Grande and Somerville, Texas
Cliff swallows (Petrochelidon pyrrhonota) and cave swallows (P. fulva) were sampled during the breeding season at several locations in the Rio Grande, Texas, to evaluate the potential effects of environmental contaminants on P450 aromatase activity in brain and gonads and DNA damage in blood cells. The tritiated water-release aromatase assay was used to measure aromatase activity and...
Authors
M.A. Sitzlar, M.A. Mora, J.G.W. Fleming, F.W. Bazer, J. W. Bickham, C. W. Matson
Hydraulic and substrate maps of reaches used by sturgeon (Genus Scaphirhynchus) in the Lower Missouri River, 2005-07 Hydraulic and substrate maps of reaches used by sturgeon (Genus Scaphirhynchus) in the Lower Missouri River, 2005-07
This report is a repository of reach-scale maps of hydraulic and substrate characteristics generated for the habitat-use portion of an interdisciplinary sturgeon research project on the Lower Missouri River (from Gavins Point Dam to the junction with the Mississippi River). The maps were derived from hydroacoustic data sets that were collected for the purpose of assessing physical...
Authors
Joanna M. Reuter, Robert B. Jacobson, Caroline M. Elliott, Harold E. Johnson, Aaron J. DeLonay
Occurrence of organic wastewater compounds in the Tinkers Creek watershed and two other tributaries to the Cuyahoga River, northeast Ohio Occurrence of organic wastewater compounds in the Tinkers Creek watershed and two other tributaries to the Cuyahoga River, northeast Ohio
The U.S. Geological Survey - in cooperation with the Ohio Water Development Authority; National Park Service; Cities of Aurora, Bedford, Bedford Heights, Solon, and Twinsburg; and Portage and Summit Counties - and in collaboration with the Ohio Environmental Protection Agency, did a study to determine the occurrence and distribution of organic wastewater compounds (OWCs) in the Tinkers...
Authors
J.S. Tertuliani, D.A. Alvarez, E. T. Furlong, M. T. Meyer, S.D. Zaugg, G. F. Koltun
Procedures for Collecting and Processing Aquatic Invertebrates and Fish for Analysis of Mercury as Part of the National Water-Quality Assessment Program Procedures for Collecting and Processing Aquatic Invertebrates and Fish for Analysis of Mercury as Part of the National Water-Quality Assessment Program
Mercury studies conducted as part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program have included nationwide reconnaissance samplings of hundreds of stream sites, as well as detailed, process-oriented research at selected sites. These reconnaissance and detailed studies are intended to provide a better understanding of methylmercury bioaccumulation in...
Authors
Barbara C. Scudder, Lia C. Chasar, L. Rod DeWeese, Mark E. Brigham, Dennis A. Wentz, William G. Brumbaugh
Protocol for monitoring metals in Ozark National Scenic Riverways, Missouri: Version 1.0 Protocol for monitoring metals in Ozark National Scenic Riverways, Missouri: Version 1.0
The National Park Service is developing a monitoring plan for the Ozark National Scenic Riverways in southeastern Missouri. Because of concerns about the release of lead, zinc, and other metals from lead-zinc mining to streams, the monitoring plan will include mining-related metals. After considering a variety of alternatives, the plan will consist of measuring the concentrations of...
Authors
Christopher J. Schmitt, William G. Brumbaugh, John M. Besser, Jo Ellen Hinck, David E. Bowles, Lloyd W. Morrison, Michael H. Williams
Determination of diphacinone in sea water, vertebrates, invertebrates, and bait pellet formulations following aerial broadcast on Mokapu Island, Molokai, Hawai'i Determination of diphacinone in sea water, vertebrates, invertebrates, and bait pellet formulations following aerial broadcast on Mokapu Island, Molokai, Hawai'i
This report presents the results of a study to determine diphacinone concentrations in samples of sea water and in fillet samples of fish and in limpets from the ocean adjacent to Mokapu Island and from reference samples from Molokai, Hawai'i; concentrations of the active ingredient (diphacinone) were also determined in samples of the Ramik Green bait pellets used for the broadcast study...
Authors
Robert W. Gale, Michael Tanner, Carl E. Orazio
Year 3 summary report: Baseline selenium monitoring of agricultural drains operated by the Imperial Irrigation District in the Salton Sea Basin Year 3 summary report: Baseline selenium monitoring of agricultural drains operated by the Imperial Irrigation District in the Salton Sea Basin
This report summarizes findings from the third year of a 4-year-long field investigation to document selected baseline environmental conditions in 29 agricultural drains and ponds operated by the Imperial Irrigation District along the southern border of the Salton Sea. Routine water quality and fish species were measured at roughly quarterly intervals from April 2007 to January 2008. The...
Authors
Michael K. Saiki, Barbara A. Martin, Thomas W. May
Reconnaissance of persistent and emerging contaminants in the Shenandoah and James River Basins, Virginia, during Spring of 2007 Reconnaissance of persistent and emerging contaminants in the Shenandoah and James River Basins, Virginia, during Spring of 2007
Fish exhibiting external lesions, incidences of intersex, and death have recently been observed in the Shenandoah and James River Basins. These basins are characterized by widespread agriculture (intensive in some areas), several major industrial discharges, numerous sewage treatment plant discharges, and urban, transportation, and residential growth that has increased rapidly in recent...
Authors
David A. Alvarez, Walter Cranor, Stephanie D. Perkins, Vickie Schroeder, Stephen Werner, Edward Furlong, Donald Kain, Robert Brent
Thiamine deficiency effects on the vision and foraging ability of lake trout fry Thiamine deficiency effects on the vision and foraging ability of lake trout fry
The exact causes of the historical recruitment failures of Great Lakes lake trout Salvelinus namaycush are unknown. Thiamine deficiency has been associated with neurological abnormalities in lake trout that lead to early mortality syndrome (EMS) in salmonine swim-up fry, and EMS-related mortality at the swim-up stage is a factor that contributes to the reproductive failure of lake trout
Authors
Donald E. Tillitt, James L. Zajicek, Rachel Claunch, Dale C. Honeyfield, John D. Fitzsimons, Scott B. Brown
Reproductive impairment of Great Lakes lake trout by dioxin-like chemicals: Chapter 21 Reproductive impairment of Great Lakes lake trout by dioxin-like chemicals: Chapter 21
No abstract available.
Authors
Donald E. Tillitt, Philip S. Cook, John P. Giesy