M
Maureen G. Walsh
Researcher at United States Geological Survey
Publications - 13
Citations - 507
Maureen G. Walsh is an academic researcher from United States Geological Survey. The author has contributed to research in topics: Hemimysis anomala & Mysis diluviana. The author has an hindex of 9, co-authored 13 publications receiving 448 citations.
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Journal ArticleDOI
Changing Ecosystem Dynamics in the Laurentian Great Lakes: Bottom-Up and Top-Down Regulation
David B. Bunnell,Richard P. Barbiero,Stuart A. Ludsin,Charles P. Madenjian,Glenn J. Warren,David M. Dolan,Travis O. Brenden,Ruth D. Briland,Owen T. Gorman,Ji X. He,Thomas H. Johengen,Brian F. Lantry,Barry M. Lesht,Thomas F. Nalepa,Stephen C. Riley,Catherine M. Riseng,Ted Treska,Iyob Tsehaye,Maureen G. Walsh,David M. Warner,Brian C. Weidel +20 more
TL;DR: In this article, the relative importance of top-down and bottom-up regulation of ecosystem structure is investigated in the Laurentian Great Lakes, where, since the early 1970s, nutrient inputs have been reduced, whereas toppredator biomass has increased.
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Effects of Implantation Method and Temperature on Mortality and Loss of Simulated Transmitters in Hybrid Striped Bass
TL;DR: Neither suture material nor antenna placement affected transmitter loss, mortality, or growth at either high or low temperatures.
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Diet and trophic niche space and overlap of Lake Ontario salmonid species using stable isotopes and stomach contents
James A. Mumby,Sarah M. Larocque,Timothy B. Johnson,Thomas J. Stewart,John D. Fitzsimons,Brian C. Weidel,Maureen G. Walsh,Jana R. Lantry,Michael J. Yuille,Aaron T. Fisk +9 more
TL;DR: Overall, Lake Ontario salmonids maintained a high reliance on alewife, and their potential for plasticity in diet provides important information to management regarding population sustainability.
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Mysis diluviana population and cohort dynamics in Lake Ontario before and after the establishment of Dreissena spp., Cercopagis pengoi , and Bythotrephes longimanus
TL;DR: This paper investigated population responses of Mysis to ecosystem changes induced by invasion of dreissenids and pred- atory cladocerans, Cercopagis and Bythotrephes.
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Age-specific light preferences and vertical migration patterns of a Great Lakes invasive invertebrate, Hemimysis anomala
TL;DR: This study is one of the first to demonstrate that Hemimysis diel vertical migration has an ontogenetic component and to report the specific light levels likely to initiate and limit vertical movements.