Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Ralph M. Stedman"'
Publikováno v:
Journal of Great Lakes Research. 28:44-51
In fisheries, imprecise measurements in catch data from surveys add uncertainty to the results of fishery stock assessments. The USGS Great Lakes Science Center (GLSC) began to survey the fall fish community of Lake Michigan in 1962 with bottom trawl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e20f659cdd03b362f01e2eea139e1e14
https://doi.org/10.1016/s0380-1330(02)70561-3
https://doi.org/10.1016/s0380-1330(02)70561-3
Autor:
Timothy J. Desorcie, Daniel V. O’Connor, Donald V. Rottiers, Robert F. Elliott, Charles P. Madenjian, Ralph M. Stedman
Publikováno v:
Journal of Great Lakes Research. 26:427-444
Lipid concentrations were measured in seven species of fish from several locations in Lake Michigan during spring, summer, and fall in 1994 to 1995. Adult alewife (Alosa pseudoharengus) and age-2 coho salmon (Oncorhynchus kisutch) exhibited pronounce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f77360691cd58a052579494250309846
https://doi.org/10.1016/s0380-1330(00)70706-4
https://doi.org/10.1016/s0380-1330(00)70706-4
Autor:
Larry J. Schmidt, Gary W. Eck, Timothy J. DeSorcie, Charles P. Madenjian, Dora R. Passino-Reader, Edward H. Brown, Ralph M. Stedman, Sergei M. Chernyak, Robert J. Hesselberg
Publikováno v:
Journal of Great Lakes Research. 25:149-159
Most of the PCB body burden in lake trout (Salvelinus namaycush) of the Great Lakes is from their food. PCB concentrations were determined in lake trout from three different locations in Lake Michigan during 1994–1995, and lake trout diets were ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb18b7938f17b771b09638c416391186
https://doi.org/10.1016/s0380-1330(99)70723-9
https://doi.org/10.1016/s0380-1330(99)70723-9
Publikováno v:
Transactions of the American Fisheries Society. 127:236-252
Lake trout Salvelinus namaycush in nearshore waters of Lake Michigan grow faster than lake trout residing offshore on Sheboygan Reef, which is in midlake. We examined the stomachs of lake trout, spanning ages 1 through 16, caught in both nearshore an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df79231c14df5e47551d3387567300ed
https://doi.org/10.1577/1548-8659(1998)127<0236:oaspid>2.0.co
https://doi.org/10.1577/1548-8659(1998)127<0236:oaspid>2.0.co
Autor:
Richard T. Quintal, Linda J. Begnoche, Larry J. Schmidt, Ralph M. Stedman, Timothy J. Desorcie, Charles P. Madenjian, Robert J. Hesselberg, Dora R. Passino-Reader
Publikováno v:
Environmental Science & Technology. 32:886-891
Most of the polychlorinated biphenyl (PCB) body burden accumulated by lake trout (Salvelinus namaycush) from the Laurentian Great Lakes is from their food. We used diet information, PCB determinations in both lake trout and their prey, and bioenerget
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f01b676f9cbc16947b89846e667d909c
https://doi.org/10.1021/es9708326
https://doi.org/10.1021/es9708326
Publikováno v:
Journal of Great Lakes Research. 24:404-410
We determined maturity schedules of male and female lake trout (Salvelinus namaycush) in Lake Michigan from nearshore populations and from an offshore population on Sheboygan Reef, which is located in midlake. Gill nets and bottom trawls were used to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4514681b97cf045dbcb1b46a67387f16
https://doi.org/10.1016/s0380-1330(98)70831-7
https://doi.org/10.1016/s0380-1330(98)70831-7
Publikováno v:
Canadian Journal of Zoology. 72:1002-1009
Ergasilus nerkae was found infecting ninespine stickleback (Pungitius pungitius) in lakes Huron, Michigan, and Superior and threespine stickleback (Gasterosteus aculeatus) and round whitefish (Prosopium cylindraceum) in Lake Huron. Based upon the lit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fb7abb40a4e79c75d656ccf59f366ed
https://doi.org/10.1139/z94-136
https://doi.org/10.1139/z94-136
Autor:
Charles A. Bowen, Ralph M. Stedman
Publikováno v:
Canadian Journal of Zoology. 68:1988-1994
Examination of the branchial cavities of 8347 adult bloaters (Coregonus hoyi) collected from seven locations in Lake Huron for parasitic copepods yielded only the lernaeopodid Salmincola corpulentus; its distribution was limited to bloaters collected
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07bedd58a4309bd5acbcc6039a402840
https://doi.org/10.1139/z90-280
https://doi.org/10.1139/z90-280
Autor:
Thomas N. Todd, Ralph M. Stedman
Publikováno v:
Canadian Journal of Zoology. 67:1679-1685
Gill raker number and length were compared for lake herring, Coregonus artedii LeSueur, and bloater, Coregonus hoyi (Gill), collected in 1917, 1956, and 1984 – 1985 at four locations in western Lake Huron to examine the effects of suspected introgr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9d0991a601ca2fbbce6f28c5e26bc2b
https://doi.org/10.1139/z89-241
https://doi.org/10.1139/z89-241
Autor:
Ralph M. Stedman, Charles A. Bowen
Publikováno v:
Journal of Great Lakes Research. 11:508-511
The threespine stickleback (Gasterosteus aculeatus) was not known to occur in the Great Lakes above Niagara Falls until 1980, when it was collected in South Bay, Manitoulin Island, in the Lake Huron basin. By 1984 this species had been found in tribu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2f99bfc8446facb763f56d56506745a
https://doi.org/10.1016/s0380-1330(85)71794-7
https://doi.org/10.1016/s0380-1330(85)71794-7