scholarly journals Projected precipitation changes within the Great Lakes and Western Lake Erie Basin: a multi-model analysis of intensity and seasonality

2017 ◽  
Vol 37 (14) ◽  
pp. 4864-4879 ◽  
Author(s):  
Samantha J. Basile ◽  
Sara A. Rauscher ◽  
Allison L. Steiner
Keyword(s):  
Great Lakes ◽  
Lake Erie ◽  
Model Analysis ◽  
Western Lake ◽  
Precipitation Changes ◽  
Western Lake Erie

scholarly journals Late-summer phytoplankton in western Lake Erie (Laurentian Great Lakes): bloom distributions, toxicity, and environmental influences

2009 ◽  
Vol 43 (4) ◽  
pp. 915-934 ◽  
Author(s):  
David F. Millie ◽  
Gary L. Fahnenstiel ◽  
Julianne Dyble Bressie ◽  
Ryan J. Pigg ◽  
Richard R. Rediske ◽  
...  
Keyword(s):  
Great Lakes ◽  
Lake Erie ◽  
Environmental Influences ◽  
Late Summer ◽  
Laurentian Great Lakes ◽  
Western Lake ◽  
Western Lake Erie

Walleye (Stizostedion vitreum vitreum) Fluctuations in the Great Lakes and Possible Causes, 1800–1975

1977 ◽  
Vol 34 (10) ◽  
pp. 1878-1889 ◽  
Author(s):  
J. C. Schneider ◽  
J. H. Leach
Keyword(s):  
Great Lakes ◽  
Lake Erie ◽  
Lake Superior ◽  
Lake Huron ◽  
Stizostedion Vitreum ◽  
Spawning Habitat ◽  
Green Bay ◽  
Western Lake ◽  
Foreign Species ◽  
Western Lake Erie

Changes in walleye (Stizostedion vitreum vitreum) stocks in the Great Lakes from 1800 to 1975 were linked to proliferation of foreign species of fish and culturally induced sources of stress — exploitation, nutrient loading, alteration of spawning habitat, and toxic materials. During the 1800s, three small spawning stocks (and probably many others) were damaged or destroyed because of either overfishing or elimination of spawning habitat through logging, pollution, or damming.During 1900–40, stocks in the Michigan waters of Lake Superior, southern Green Bay, the Thunder Bay River of Lake Huron, the North Channel of Lake Huron, and the New York waters of Lake Ontario declined gradually. Pollution, in general, and degradation of spawning habitat, in particular, probably caused three of the declines and overexploitation was suspected in two instances. In addition, the decline of three of these stocks occurred when rainbow smelt (Osmerus mordax) were increasing.During 1940–75, stocks in seven areas declined abruptly: Saginaw Bay (1944), northern Green Bay (1953), Muskegon River (mid-1950s), western Lake Erie (1955), Nipigon Bay (late 1950s), Bay of Quinte (1960), and Black Bay (mid-1960s). The decline of each stock was associated with a series of weak year-classes. The stocks were exposed to various sources of stress, including overexploitation, pollution, and interaction with foreign species, which, if not important in the decline, may be suppressing recovery. Only the western Lake Erie stock recovered, in part due to a reduction in exploitation and, possibly, because of the relatively low density of smelt and alewives (Alosa pseudoharengus) in the nursery areas.Relatively stable stocks persisted in five areas: Wisconsin waters of Lake Superior, Lake St. Clair — southern Lake Huron, eastern Lake Erie, northern Lake Huron, and parts of Georgian Bay. Pollution problems were relatively minor in these areas and exploitation was light during recent decades. Apparently these stocks were more capable of withstanding the additional stresses exerted by alien species. Key words: population fluctuations, Percidae, Stizostedion, Great Lakes walleye, history of fisheries, summary of stresses, harvests, management implications

scholarly journals Genome sequences of lower Great Lakes Microcystis sp. reveal strain-specific genes that are present and expressed in western Lake Erie blooms

PLoS ONE ◽  
2017 ◽  
Vol 12 (10) ◽  
pp. e0183859 ◽  
Author(s):  
Kevin Anthony Meyer ◽  
Timothy W. Davis ◽  
Susan B. Watson ◽  
Vincent J. Denef ◽  
Michelle A. Berry ◽  
...  
Keyword(s):  
Great Lakes ◽  
Lake Erie ◽  
Genome Sequences ◽  
Western Lake ◽  
Western Lake Erie

Dramatic Decline of Unionid Bivalves in Offshore Waters of Western Lake Erie After Infestation by the Zebra Mussel, Dreissena polymorpha

1994 ◽  
Vol 51 (10) ◽  
pp. 2234-2242 ◽  
Author(s):  
Don W. Schloesser ◽  
Thomas F. Nalepa
Keyword(s):  
Great Lakes ◽  
Zebra Mussel ◽  
Dreissena Polymorpha ◽  
Lake Erie ◽  
Zebra Mussels ◽  
Laurentian Great Lakes ◽  
Western Lake ◽  
Dramatic Decline ◽  
Heavy Infestation ◽  
Western Lake Erie

Unionid bivalves and attached epizoic zebra mussels (Dreissena polymorpha) were collected at one index station in 1989, 1990, and 1991 and at 17 stations in 1991 in offshore waters of western Lake Erie of the Laurentian Great Lakes. Sampling at the index station revealed that the proportion of live unionids declined from 53% in September 1989 to 17% in May–June 1990 and to 0% in September 1990: this 100% mortality coincided with heavy infestation by zebra mussels. Quantitative sampling with a Ponar grab at the 17 stations in 1991 revealed a widespread and dramatic reduction in unionid populations. In 1982, five unionid species occurred at 35% of the stations at a density of 4/m2, whereas in 1991, no live unionid species were found. Qualitative sampling with an epibenthic sled at the 17 stations in 1991 yielded only 4 live specimens of 2 species (Amblema plicata plicata and Fusconaia flava) and 187 dead specimens of 10 species. These and other results indicate that unionid populations are being negatively affected by zebra mussels in the Great Lakes. Similar impacts on unionids are expected to occur where zebra mussels become abundant throughout North America.

An experimental analysis of crayfish (Orconectes rusticus) effects on a Dreissena-dominated benthic macroinvertebrate community in western Lake Erie

1998 ◽  
Vol 55 (4) ◽  
pp. 1043-1050 ◽  
Author(s):  
Timothy W Stewart ◽  
Jeffrey G Miner ◽  
Rex L Lowe
Keyword(s):  
Great Lakes ◽  
Trophic Interactions ◽  
Lake Erie ◽  
Community Dynamics ◽  
Macroinvertebrate Community ◽  
Trophic Levels ◽  
Benthic Macroinvertebrate ◽  
Orconectes Rusticus ◽  
Western Lake ◽  
Western Lake Erie

Quantitative descriptions of trophic interactions between Dreissena (zebra and quagga mussels) and other organisms are needed for an understanding of Dreissena's effects on energy flow and community dynamics in the Great Lakes. We used a field experiment to quantify effects of crayfish (Orconectes rusticus) predation on a Dreissena-dominated benthic macroinvertebrate community in western Lake Erie. Rocks colonized by Dreissena and associated macroinvertebrates were placed in cages and cageless reference plots located at a depth of 4 m. Crayfish (0, 8.3, and 20.8 individuals ·m-2) placed in cages were allowed to graze for 28 days. Dreissena had a greater effect than crayfish on the macroinvertebrate community, with positive relationships observed between Dreissena densities and both total macroinvertebrate biomass and densities of the amphipod Gammarus fasciatus. However, crayfish at densities of 20.8 individuals ·m-2 still reduced non-Dreissena macroinvertebrate biomass and Gammarus densities by 33 and 37%, respectively, relative to crayfish exclosures. Crayfish had negligible effects on Dreissena densities or shell length frequency distribution. Because crayfish and amphipods are prey for several fish species, trophic interactions among Dreissena, amphipods, and crayfish may be important in channeling energy from Dreissena to higher trophic levels in the Great Lakes.

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