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Effect of lake-wide planktivory by the pelagic prey fish community in Lakes Michigan and Ontario

Autor: Brian F. Lantry, Lars G. Rudstam, Stephen B. Brandt, Andrew P. Goyke, Robert O'Gorman, Ora E. Johannsson, Gary W. Eck, Donald J. Stewart, Peter S. Rand

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 52:1546-1563

We compared predatory demand by pelagic planktivorous prey fish with invertebrate production in Lake Michigan during 1987 and in Lake Ontario during 1990. Predation by the planktivores in Lake Ontario was nearly fourfold higher than in Lake Michigan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::928dd4afafa18e42d027c3c4680b2baf
https://doi.org/10.1139/f95-148

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Limitations to Lake Trout ( Salvelinus namaycush ) Rehabilitation in the Great Lakes Imposed by Biotic Interactions Occurring at Early Life Stages

Autor: Gary W. Eck, Mary C. Fabrizio, David O. Evans, Michael L. Jones, David J. Jude, Jacqueline F. Savino, John Janssen, Robert O'Gorman, Patrick L. Hudson, Michael H. Hoff

Publikováno v: Journal of Great Lakes Research. 21:505-517

We examine evidence that biotic factors, particularly predation, may be limiting early survival of wild lake trout (Salvelinus namaycush) juveniles in many areas of the Great Lakes. The Great Lakes contain numerous potential predators of lake trout e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::54e4a1bbe9c938f57a8f8da63024076e
https://doi.org/10.1016/s0380-1330(95)71122-4

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Progress Toward Lake Trout Restoration in Lake Michigan

Autor: Mark E. Holey, J. Ellen Marsden, Michael L. Toneys, Ronald W. Rybicki, Edward H. Brown, Tom N. Trudeau, Dennis S. Lavis, Gary W. Eck, Ross M. Horrall

Publikováno v: Journal of Great Lakes Research. 21:128-151

Progress toward lake trout restoration in Lake Michigan is described through 1993. Extinction of the native lake trout fishery by sea lamprey predation, augmented by exploitation and habitat destruction, resulted in an extensive stocking program of h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18302042eee0596e4c2b101e114612f7
https://doi.org/10.1016/s0380-1330(95)71087-5

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Accumulation of PCBs by Lake Trout (Salvelinus namaycush): An Individual-Based Model Approach

Autor: Gary W. Eck, Stephen R. Carpenter, Michael A. Miller, Charles P. Madenjian

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 50:97-109

To explain the variation in growth and in concentration of polychlorinated biphenyls (PCBs) among individual fish, an individual-based model (IBM) was applied to the lake trout (Salvelinus namaycush) population in Lake Michigan. The IBM accurately re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58a6b54adea294fb62bb93d0cc19d667
https://doi.org/10.1139/f93-012

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Myxobolus cognati n. sp. (Myxosporea) from the Opercular Integument of Cottus cognatus (Cottidae) in Lake Michigan

Autor: Patrick M. Muzzall, David K. Cone, Gary W. Eck, Richard Greg Stickel

Publikováno v: The Journal of Parasitology. 82:137

A myxosporean producing aggregations of white pseudocysts in skin covering the posterior margin of the operculum and perioral tissue of Cottus cognatus in Lake Michigan is described as Myxobolus cognati n. sp. (Myxosporea). Histological sections reve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b5ae032a82bbd8266783a9a22083d65
https://doi.org/10.2307/3284129

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Recent Changes in Lake Michigan's Fish Community and Their Probable Causes, With Emphasis on the Role of the Alewife (Alosa pseudoharengus)

Autor: LaRue Wells, Gary W. Eck

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 44:s53-s60

Major changes in fish populations occurred in Lake Michigan between the early 1970s and 1984. The abundance of lake trout (Salvelinus namaycush) and several nonnative species of salmonines increased greatly as a result of intensive stocking. The exot

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d684c977b7655a5a0f304ec68be9dbe8
https://doi.org/10.1139/f87-308

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Meeting Future Information Needs for Great Lakes Fisheries Management

Autor: Lawrence D. Jacobson, W. J. Christie, Mark E. Holey, Wayne R. MacCallum, Gary W. Eck, John M. Hoenig, Robert O'Gorman, James H. Selgeby, John J. Collins, Chris I. Goddard, Stephen J. Nepszy

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 44:s439-s447

Description of information needs for management of Great Lakes fisheries is complicated by recent changes in biology and management of the Great Lakes, development of new analytical methodologies, and a transition in management from a traditional uni

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::310dc0e11dbfa54e7f0f82b4ffb49b54
https://doi.org/10.1139/f87-346

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Depth Distribution, Diet, and Overwinter Growth of Lake Trout (Salvelinus Namaycush) in Southeastern Lake Michigan Sampled in December 1981 and March 1982

Autor: LaRue Wells, Gary W. Eck

Publikováno v: Journal of Great Lakes Research. 12:263-269

Lake trout were collected in graded-mesh gill nets and forage fishes were collected in trawls in mid December 1981 and late March 1982. The length ranges of 317 lake trout caught in December and 138 in March were 280–767 and 286–857 mm, and the a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5f134c342fdf8b15a7a2812c26f923c
https://doi.org/10.1016/s0380-1330(86)71726-7

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Lake Michigan's Capacity to Support Lake Trout (Salvelinus namaycush) and Other Salmonines: An Estimate Based on the Status of Prey Populations in the 1970s

Autor: Edward H. Brown, Gary W. Eck

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 42:449-454

We used a mass balance equation relating total mortality of age II and older alewives (Alosa pseudoharengus) to their removals by predatory fish and other sources of mortality as the basis for estimating that the forage base in Lake Michigan could su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0474265498395df875810e31e37689f9
https://doi.org/10.1139/f85-060

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