Growth and survival of newly parasitic sea lampreys at representative winter temperatures
William D. Swink
1995, Transactions of the American Fisheries Society (124) 380-386
Larval sea lampreys Petromyzon marinus begin to metamorphose into their parasitic phase in July and migrate to the Great Lakes either in autumn, when they immediately feed on fish, or in spring after overwintering in the stream substrate. Survival and growth of newly parasitic autumn migrants (mean weight, 4.18 g) differed significantly...
Genetic strategies for lake trout rehabilitation: a synthesis
Mary K. Burnham-Curtis, Charles C. Krueger, Donald R. Schreiner, James E. Johnson, Thomas J. Stewart, Ross M. Horrall, Wayne R. MacCallum, Roger Kenyon, Robert E. Lange
1995, Journal of Great Lakes Research (21) 477-486
The goal of lake trout rehabilitation efforts in the Great Lakes has been to reestablish inshore lake trout (Salvelinus namaycush) populations to self-sustaining levels. A combination of sea lamprey control, stocking of hatchery-reared lake trout, and catch restrictions were used to enhance remnant lake trout stocks in Lake Superior and...
Hatching, dispersal, and bathymetric distribution of age-0 wild lake trout at the Gull Island Shoal complex, Lake Superior
Charles R. Bronte, James H. Selgeby, James H. Saylor, Gerald S. Miller, Neal R. Foster
1995, Journal of Great Lakes Research (21) 233-245
We studied age-0 lake trout (Salvelinus namaycush) associated with spawning and nursery areas of the Gull Island Shoal complex in western Lake Superior. Post-emergent age-0 lake trout were captured on rocky spawning substrate with a 3-m beam trawl and at the nursery area with a bottom trawl from June to...
Lake trout rehabilitation in Lake Erie: a case history
Floyd C. Cornelius, Kenneth M. Muth, Roger Kenyon
1995, Journal of Great Lakes Research (21) 65-82
Native lake trout (Salvelinus namaycush) once thrived in the deep waters of eastern Lake Erie. The impact of nearly 70 years of unregulated exploitation and over 100 years of progressively severe cultural eutrophication resulted in the elimination of lake trout stocks by 1950. Early attempts to restore lake trout by...
Survival of lake trout eggs on reputed spawning grounds in Lakes Huron and Superior: In situ incubation, 1987-1988
Bruce A. Manny, Thomas A. Edsall, James W. Peck, Gregory W. Kennedy, Anthony M. Frank
1995, Journal of Great Lakes Research (21) 302-312
Lake trout reproduce widely in Lake Superior but little in Lake Huron. We examined whether survival of lake trout eggs and fry in either lake was reduced by physical disturbances and swim-up mortality. Eggs were collected from feral lake trout in Lake Superior and placed in 108 plastic incubators. A...
Differential effects of coyotes and red foxes on duck nest success
Marsha A. Sovada, A. Sargeant, J.W. Grier
1995, Journal of Wildlife Management (59) 1-9
Low recruitment rates prevail among ducks in the Prairie Pothole Region of North America, primarily because of high nest depredation rates. The red fox (Vulpes vulpes) is a major predator of duck eggs, but fox abundance is depressed by coyotes (Canis latrans). We tested the hypothesis that nest success of...
Planktivory by alewife (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax) on microcrustacean zooplankton and dreissenid (Bivalvia: Dreissenidae) veligers in southern Lake Ontario
Edward L. Mills, Robert O’Gorman, Edward F. Roseman, Connie Adams, Randall W. Owens
1995, Canadian Journal of Fisheries and Aquatic Sciences (52) 925-935
The objective of this study was to describe the diet of young-of-the-year and adult alewife (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax) in nearshore waters coincident with the colonization of Lake Ontario by Dreissena. Laboratory experiments and field observations indicated that alewife and rainbow smelt consumed dreissenid veligers and that the...
Effect of gear selectivity on recommended allowable harvest with application to the Lake Erie yellow perch fishery
Charles P. Madenjian, Philip A. Ryan
1995, North American Journal of Fisheries Management (15) 79-83
Because the 57-mm-mesh gill net is the predominant gear in the Lake Eric fishery for yellow perch Perca flavescens, gear selectivity is an important factor operating in that fishery. The selectivity curve for age-groups 2–6 is roughly symmetrical with peak vulnerability at age 4; younger and older perch are substantially...
Lake trout restoration in the Great Lakes: stock-size criteria for natural reproduction
James H. Selgeby, Charles R. Bronte, Edward H. Brown, Michael J. Hansen, Mark E. Holey, Jan P. VanAmberg, Kenneth M. Muth, Daniel B. Makauskas, Patrick Mckee, David M. Anderson, C. Paola Ferreri, Stephen T. Schram
1995, Journal of Great Lakes Research (21) 498-504
We examined the question of whether the lake trout restoration program in the Great Lakes has developed brood stocks of adequate size to sustain natural reproduction. Stock size criteria were developed from areas of the Great Lakes where natural reproduction has been successful (defined as detection of age-1 or older...
Size limitation on zebra mussels consumed by freshwater drum may preclude the effectiveness of drum as a biological controller
John R. P. French III, Joy G. Love
1995, Journal of Freshwater Ecology (10) 379-383
The septa lengths of bivalve shells were used to estimate shell lengths of the largest zebra mussels (Dreissena polymorpha) crushed and consumed by freshwater drum (Aplodinotus grunniens) to determine if size limitation could preclude the effectiveness of drum as a biological controller of the zebra mussel. We examined gut samples...
Fisheries management to reduce contaminant consumption
Craig A. Stow, Stephen R. Carpenter, Charles P. Madenjian, Lisa A. Eby, Leland J. Jackson
1995, BioScience (45) 752-758
This paper concludes that contaminants in Lake Michigan fishes are likely to remain above detectable levels for some time. Some interest groups have called for measures ranging from additional effluent controls to a ban on the industrial use of chlorine. Such measures, however well intended, are likely to have little...
Introduction to the Proceedings of the 1994 International Conference on Restoration of Lake Trout in the Laurentian Great Lakes
James H. Selgeby
1995, Journal of Great Lakes Research (21) 1-2
Lake trout (Salvelinus namaycush) restoration in the Great Lakes began in the 1950s when stocking of artificially propagated lake trout was coupled with the first attempts at sea lamprey (Petromyzon marinus) control. A major milestone in the restoration process was recorded when a selective sea lamprey larvicide was identified in...
Winter diet of lake herring (Coregonus artedi) in western Lake Superior
Jason Link, James H. Selgeby, Michael H. Hoff, Craig Haskell
1995, Journal of Great Lakes Research (21) 395-399
Lake herring (Coregonus artedi) and zooplankton samples were simultaneously collected through the ice in the Apostle Islands region of western Lake Superior to provide information on the winter feeding ecology of lake herring. Zooplankton constituted the entire diet of the 38 lake herring collected for this study. We found no...
Geologic framework of a transect of the central Brooks Range: Regional relations and an alternative to the Endicott Mountains allochthon
John S. Kelley, W. P. Brosge
1995, American Association of Petroleum Geologists Bulletin (79) 1087-1115
This paper evaluates the geologic framework and tectonic development of the central Brooks Range based on a transect through the range and Arctic foothills. A geologic cross section constructed through the transect is confirmed by comparing the retrodeformed section with the regional distribution of lithofacies in the central Brooks Range....
Procedures for formation of composite samples from segmented populations
Mary C. Fabrizio, Anthony M. Frank, Jacqueline F. Savino
1995, Environmental Science & Technology (29) 1137-1144
We used a simulation approach to investigate the implication of two methods of forming composite samples to characterize segmented populations. We illustrate the case where the weight of individual segments varies randomly, a situation common with fish samples. Composite samples from segments such as whole fish or muscle tissue should...
Predation on Mysis relicta by slimy sculpins (Cottus cognatus) in southern Lake Ontario
Randall W. Owens, Peter G. Weber
1995, Journal of Great Lakes Research (21) 275-283
Mysis relicta and Diporeia dominated the diet of slimy sculpins (Cottus cognatus) caught at depths of 55, 75, and 95 m at two locations in southern Lake Ontario. Length of prey was positively correlated with length of slimy sculpin. At a given depth, mean...
Waterbird predation on fish in western Lake Erie: a bioenergetics model application
Charles P. Madenjian, Steven W. Gabrey
1995, Condor (97) 141-153
To better understand the role of piscivorous waterbirds in the food web of western Lake Erie, we applied a bioenergetics model to determine their total fish consumption, The important nesting species included the Herring Gull (Larus argentatus), Ring-billed Gull (L. delawarensis), Double-crested Cormorant (Phalacrocorax auritus), Great Blue Heron (Ardea herodias),...
Measured and predicted velocity and longitudinal dispersion at steady and unsteady flow, Colorado River, Glen Canyon Dam to lake mead
J.B. Graf
1995, Water Resources Bulletin (31) 265-281
The effect of unsteadiness or dam releases on velocity and longitudinal dispersion of flow was evaluated by injecting a fluorescent dye into the Colorado River below Glen Canyon Dam and sampling for dye concentration at selected sites downstream. In Glen Canyon, average flow velocity through the study reach increased directly...
Paleohydrologic record from lake brine on the southern High Plains, Texas
Ward E. Sanford, Warren W. Wood
1995, Geology (23) 229-232
The timing of changes in the stage and salinity of Double Lakes of Lynn County, Texas, was estimated using dissolved-chloride profiles across an underlying shale layer. Lake conditions over the past 30 to 50 ka can be inferred from the chloride profiles by using the advective velocity of the pore...
Optimization techniques for integrating spatial data
U.C. Herzfeld, D. F. Merriam
1995, Mathematical Geology (27) 559-588
Two optimization techniques ta predict a spatial variable from any number of related spatial variables are presented. The applicability of the two different methods for petroleum-resource assessment is tested in a mature oil province of the Midcontinent (USA). The information on petroleum productivity, usually not directly accessible, is related indirectly...
Use of electric logs to estimate water quality of pre-tertiary aquifers
J. B. Lindner-Lunsford, Breton W. Bruce
1995, Groundwater (33) 547-555
Electric logs provide a means of estimating ground-water quality in areas where water analyses are not available. Most of the methods for interpreting these logs have been developed for the petroleum industry and are most reliable in saline aquifers (concentration of dissolved solids as sodium...
Evaluation of simplified stream-aquifer depletion models for water rights administration
Marios Sophocleous, Antonis Koussis, J.L. Martin, S.P. Perkins
1995, Groundwater (33) 579-588
We assess the predictive accuracy of Glover's (1974) stream-aquifer analytical solutions, which are commonly used in administering water rights, and evaluate the impact of the assumed idealizations on administrative and management decisions. To achieve these objectives, we evaluate the predictive capabilities of the Glover stream-aquifer...
Interpretation of prematurely terminated air-pressurized slug tests
Allen M. Shapiro, Earl A. Greene
1995, Ground Water (33) 539-546
An air-pressurized slug test consists of applying a constant pressure to the column of air in a well, monitoring the declining water level, and then releasing the air pressure and monitoring the recovering water level. Such tests offer a means of estimating formation transmissivity and storativity without extensive downhole equipment...
Annotated bibliography of methodology for assessment of undiscovered oil and gas resources
Ronald R. Charpentier, G.L. Dolton, G. F. Ulmishek
1995, Nonrenewable Resources (4) 154-186
An annotated bibliography of methodology of assessment of undiscovered oil and gas resources is presented as a useful reference for those engaged in resource assessment. The articles that are included deal only with quantitative assessment of undiscovered or inferred resources. the articles in this bibliography are classified largely according to...
Exposure of a late cretaceous layered mafic-felsic magma system in the central Sierra Nevada batholith, California
D.S. Coleman, A. F. Glazner, J.S. Miller, K.J. Bradford, T. P. Frost, J.L. Joye, C.A. Bachl
1995, Contributions to Mineralogy and Petrology (120) 129-136
New U-Pb zircon ages for the Lamarck Granodiorite, associated synplutonic gabbro and diorite plutons, and two large mafic intrusive complexes that underlie them in the Sierra Nevada batholith are 92??1 Ma. These ages establish the Late Cretaceous as a period of extensive mafic-felsic magmatism in the central part of the...
