期刊
JOURNAL OF GREAT LAKES RESEARCH
卷 43, 期 3, 页码 90-99出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jglr.2017.03.005
关键词
Lake Michigan; Microcystis; Bioenergetics; Asian Carp; Invasive species
资金
- Missouri Department of Conservation, The University of Missouri
- U.S. Fish and Wildlife Service
- U.S. Geological Survey
- Wildlife Management Institute
We used bioenergetic simulations combined with satellite-measured water temperature and estimates of algal food availability to predict the habitat suitability of Lake Michigan for adult silver carp (Hypophthalmichthys molitrix) and bighead carp (H. nobilis). Depending on water temperature, we found that bigheaded carp require ambient algal concentrations between 1 and 7 mu g chlorophyll/L or between 0.25 x 10(5) and 120 x 10(5) cells/mL Microcystis to maintain body weight When the bioenergetics model is forced with the observed average annual temperature cycle, our simulations predicted silver carp bioenergetics predicted annual weight change ranging from 9% weight loss to 23% gain; bighead carp ranged from 68 to 177% weight gain. Algal concentrations <4 mu g chlorophyll/L and <200,000 cells/mL were below the detection limits of the remote sensing method. However, all areas with detectable algae have sufficient concentrations of algal foods for bigheaded carp weight-maintenance and growth. Those areas are predominately along the nearshore areas. Published by Elsevier B.V. on behalf of International Association for Great Lakes Research.
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