Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Jeffrey S. Schaeffer"'
Autor:
Sara N. Diller, Anna M. Harrison, Kurt P. Kowalski, Valerie J. Brady, Jan J. H. Ciborowski, Matthew J. Cooper, Joshua D. Dumke, Joseph P. Gathman, Carl R. Ruetz, Donald G. Uzarski, Douglas A. Wilcox, Jeffrey S. Schaeffer
Publikováno v:
Wetlands Ecology and Management. 30:439-460
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc617adafceffa7d5bcf858867cb7ffe
https://doi.org/10.1007/s11273-022-09862-8
https://doi.org/10.1007/s11273-022-09862-8
Publikováno v:
Journal of Great Lakes Research. 43:399-404
A trawl survey was conducted in the Saint Marys River during 2010–2011 and we compared our results to a prior trawl survey conducted during 1979–1983 to look for long-term changes in the fish community, especially in terms of changes induced by i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29e2af49691791f9c17b3ab776857fa5
https://doi.org/10.1016/j.jglr.2016.10.014
https://doi.org/10.1016/j.jglr.2016.10.014
Autor:
William B. Richardson, Robert J. Kennedy, Mary Anne Evans, James H. Larson, J. C. Nelson, Jeffrey S. Schaeffer
Publikováno v:
The American Midland Naturalist. 176:119-129
Invasion of North American waters by nonnative Dreissena polymorpha and D. rostriformis bugensis has resulted in declines of the Unionidae family of native North American mussels. Dreissenid mussels biofoul unionid mussels in large numbers and interf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cab82f51be50836defd632dbfbc9dc4
https://doi.org/10.1674/0003-0031-176.1.119
https://doi.org/10.1674/0003-0031-176.1.119
Publikováno v:
Transactions of the American Fisheries Society. 143:1419-1433
Examination of angler-caught piscivore stomachs revealed that Lake Trout Salvelinus namaycush, Chinook Salmon Oncorhynchus tshawytscha, and Walleyes Sander vitreus altered their diets in response to unprecedented declines in Lake Huron's main-basin p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9af7b60dd439fd31a177cb9230fbdd35
https://doi.org/10.1080/00028487.2014.945659
https://doi.org/10.1080/00028487.2014.945659
Autor:
Lisa M. O'Connor, Susan Greenwood, Jeffrey S. Schaeffer, Mark W. Rogers, Josh Parrish, Neal Godby, Greg Wright, Anjanette Bowen, Stephen C. Chong, David G. Fielder
Publikováno v:
Journal of Great Lakes Research. 40:15-22
Long-term surveys are useful in understanding trends in connecting channel fish communities; a gill net assessment in the Saint Marys River performed periodically since 1975 is the most comprehensive connecting channels sampling program within the La
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d92f1f7b3c978c872d21bb150f43c9dd
https://doi.org/10.1016/j.jglr.2014.03.002
https://doi.org/10.1016/j.jglr.2014.03.002
Publikováno v:
Journal of Great Lakes Research. 39:404-408
Reported population biomass of Limnocalanus macrurus in Lake Huron has been underestimated by several-fold owing to application of an inappropriate length–weight regression model. During August and September the underestimates can exceed three-fold
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::227b845c3a1cf75ff78398b788ac30a2
https://doi.org/10.1016/j.jglr.2013.05.005
https://doi.org/10.1016/j.jglr.2013.05.005
Autor:
Jeffrey S. Schaeffer, Thomas R. Hrabik, David M. Warner, Bernie Pientka, Timothy P. O'Brien, Jeffrey D. Holuszko, Lars G. Rudstam, Randall M. Claramunt, Daniel L. Yule
Publikováno v:
Fisheries Research. :62-69
Because it is not possible to identify species with echosounders alone, trawling is widely used as a method for collecting species and size composition data for allocating acoustic fish density estimates to species or size groups. In the Laurentian G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26ac1940d2b14ac6f4561810c0c07ac5
https://doi.org/10.1016/j.fishres.2011.11.021
https://doi.org/10.1016/j.fishres.2011.11.021
Autor:
Jeffrey S. Schaeffer, Thomas F. Nalepa, Stuart A. Ludsin, Randall M. Claramunt, Henry A. Vanderploeg, Steven A. Pothoven, David M. Warner
Publikováno v:
Journal of Great Lakes Research. 38:134-141
We compared Bythotrephes population demographics and dynamics to predator (planktivorous fish) and prey (small-bodied crustacean zooplankton) densities at a site sampled through the growing season in Lakes Michigan, Huron, and Erie. Although seasonal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52920462b8ec0c87c2b2f798994c6663
https://doi.org/10.1016/j.jglr.2011.10.003
https://doi.org/10.1016/j.jglr.2011.10.003
Publikováno v:
Fisheries. 37:66-75
Maintaining aquatic biodiversity in urban or suburban areas can be problematic because urban landscapes can be nearly devoid of aquatic habitats other than engineered basins for storm water management. These areas are usually of questionable value fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6722cfb6ab5de810bac0c1b186a8f9ba
https://doi.org/10.1080/03632415.2012.650992
https://doi.org/10.1080/03632415.2012.650992
Publikováno v:
Journal of Great Lakes Research. 38:93-97
The opossum shrimp (Mysis diluviana) is a vital component of Great Lakes food webs. Baseline data on the nutritional condition of Mysis populations are necessary to evaluate potential impacts of recent, dramatic changes in the lower food webs of lake
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f5cae696b2fe99462f367c0c44c8fdc
https://doi.org/10.1016/j.jglr.2011.07.001
https://doi.org/10.1016/j.jglr.2011.07.001