Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Joseph C. Makarewicz"'
Publikováno v:
Inland Waters. 6:35-53
An ordination approach using chemical and biological measures was employed to evaluate and identify alternative phases of a large, stratified, eutrophic lake as well as the correlated causes associ...
Autor:
Joseph C. Makarewicz, Theodore W. Lewis, Dale Pettenski, P. Richards, B.J. Snyder, Mellissa J. Winslow, James Zollweg, Evan Rea, L. Dressel
Publikováno v:
Journal of Great Lakes Research. 41:743-759
An assessment of sediment and phosphorus concentrations and load, identification of phosphorus allocation and sources, and the effectiveness of management practices on the main stem (Upper Genesee River, Lower Genesee River) and on the four major Gen
Publikováno v:
Journal of Great Lakes Research. 41:794-800
An ordination approach integrating chemical water quality and biological parameters proved to be an effective method that identified six regional clusters of differing water quality in the nearshore of Lake Ontario. This approach allows for an evalua
Publikováno v:
Journal of Great Lakes Research. 41:123-135
Developing reference criteria for nutrient conditions on streams can be difficult especially in heavily farmed or urbanized regions where most of the landscape has been impacted by human development. SWAT (soil water assessment tool) simulations perm
Publikováno v:
Journal of Great Lakes Research. 41:192-199
Rotifers and the predatory Cercopagis , Bythotrephes , Leptodora , and Diacyclops were collected from 1984 to 2013 in Lake Ontario. In contrast to a previous study, total rotifer abundance decreased. Of the six common genera, Polyarthra and Keratella
Publikováno v:
Journal of Great Lakes Research. 40:1037-1047
We evaluated the trophic status of several contrasting wadeable streams with the Nutrient Biotic Index for phosphorus (NBI-P) and the NBI for nitrate (NBI-N) in comparison to trophic status as determined based solely on measured nutrient chemistry. T
Publikováno v:
Journal of Great Lakes Research. 38:62-71
Large lakes have characteristics, such as a spring thermal bar; nearshore offshore gradients of nutrients, sediment, and biota; and the development of a nearshore zone often chemically, biologically, and physically different from the offshore region,
Publikováno v:
Journal of Great Lakes Research. 38:161-170
Dreissenid mussels are ecosystem engineers in the Great Lakes, affecting benthic and water column communities and production. We surveyed mussel populations at four Canadian and three U.S. locations in summer 2008 to update population status and exam
Autor:
E.T. Howell, Joseph C. Makarewicz
Publikováno v:
Journal of Great Lakes Research. 38:2-9
Intensive sampling of seven 100-km 2 nearshore sites and a lake circumnavigation using geo-spatially linked, continuous-measuring sensors allowed unprecedented detail on the structure of the nearshore of Lake Ontario in the post-dreissenid era. The 2
Publikováno v:
Journal of Great Lakes Research. 38:154-160
Round goby ( Neogobius melanostomus ) populations are established in all the Great Lakes, subsequent to the success of the Dreissena mussel invasion. Additionally, localized resurgence of the nuisance alga, Cladophora glomerata , also has been report