Publications
Browse more than 150,000 publications authored by our scientists over the past 100+ year history of the USGS. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
Upper Midwest Environmental Sciences Center Publications
Filter Total Items: 3352
Factors influencing mercury concentrations in walleyes in northern Wisconsin lakes Factors influencing mercury concentrations in walleyes in northern Wisconsin lakes
We examined relations between mercury concentrations in walleyes Stizostedion vitreum and the characteristics ofclear‐water Wisconsin lakes, which spanned a broad range of pH values (5.0–8.1) and acid‐neutralizing capacities (–9 to 1,017 μeq/L). Total concentrations of mercury in axial muscle tissue of walleyes (total length, 25–56 cm) varied from 0.12 to 1.74 μg/g wet weight...
Authors
J.G. Wiener, R.E. Martini, T.B. Sheffy, G.E. Glass
Sterilizing effects of cobalt-60 and cesium-137 radiation on male sea lampreys Sterilizing effects of cobalt-60 and cesium-137 radiation on male sea lampreys
Male spawning-run sea lampreys Petromyzon marinus were exposed to various doses of cobalt-60 or cesium-137 radiation in an attempt to sterilize them for use in a program for controlling sea lampreys through the release of sterile males. Males captured and irradiated during the early part of the upstream migration were not effectively sterilized at the doses tested. After irradiation, the...
Authors
L.H. Hanson
Effect of size on lake trout survival after a single sea lamprey attack Effect of size on lake trout survival after a single sea lamprey attack
When lake trout Salvelinus namaycush were subjected to a single attack by a sea lamprey Petromyzon marinus in laboratory tests in 1986, percentage mortality was significantly higher in small fish (64%; 469-557 mm; N = 67) than in medium (44%; 559-643 mm; N = 45) or large fish (43%; 660-799 mm; N = 47). Additional studies conducted in 1987 with 55 medium (559-650 mm) and 52 large (660-825...
Authors
William D. Swink
Evaluation of condition indices for estimation of growth of largemouth bass and white crappie Evaluation of condition indices for estimation of growth of largemouth bass and white crappie
We evaluated the ability of three condition indices-condition factor (K), relative condition (Kn), and relative weight (Wr)-to estimate annual growth rates of largemouth bass Micropterus salmoides and white crappies Pomoxis annularis collected during standardized autumn electrofishing and trap-net surveys of Texas reservoirs. Multiple-regression models for estimation of length increments...
Authors
Steve Gutreuter, W. Michael Childress
Effects of water temperature, hardness and pH on the toxicity of benzocaine to eleven freshwater fishes Effects of water temperature, hardness and pH on the toxicity of benzocaine to eleven freshwater fishes
Abstract not submitted to date
Authors
T.D. Bills, G.E. Howe, L. L. Marking
Equipment needed for field assessments Equipment needed for field assessments
No abstract available.
Authors
G. R. Ardinger
Effects of changes in dissolved oxygen on the toxicity of 3-trifluoromethyl-4-nitrophenol (TFM) to sea lamprey and rainbow trout Effects of changes in dissolved oxygen on the toxicity of 3-trifluoromethyl-4-nitrophenol (TFM) to sea lamprey and rainbow trout
Abstract not submitted to date
Authors
J.G. Seelye, R.J. Scholefield
Resistance to 3-trifluoromethyl-4-nitrophenol (TFM) in sea lamprey Resistance to 3-trifluoromethyl-4-nitrophenol (TFM) in sea lamprey
The lampricide 3-trifluoromethyl-4-nitrophenol (TFM) has been used in the United States and Canada for more than 30 years to control populations of sea lamprey (Petromyzon marinus) in the Great Lakes. There is concern that sea lamprey might become resistant to TFM. Lampricide toxicity tests have been conducted at the Hammond Bay Biological Station, Millersburg, Michigan, since the 1950s...
Authors
R.J. Scholefield, J.G. Seelye
Residues of malachite green in muscle, eggs, and fry of treated atlantic salmon and chinook salmon Residues of malachite green in muscle, eggs, and fry of treated atlantic salmon and chinook salmon
Abstract not submitted to date
Authors
J. L. Allen
The effects of the 1988 drought on water resources in Wisconsin The effects of the 1988 drought on water resources in Wisconsin
The 1988 drought was one of the most severe droughts since weather records have been kept in Wisconsin. This fact sheet describes the cause of the drought and its effects on the water resources, water use, and agriculture in the State.
Authors
B. K. Holmstrom, B.R. Ellefson
Where to send samples for analysis Where to send samples for analysis
No abstract available.
Authors
R. A. Schnick
Interpreting the scene Interpreting the scene
No abstract available.
Authors
Fred P. Meyer, Roger L. Herman