All Climate Events
Webinar: Climate change impacts on lake thermal habitat
Wednesday, 01 March 2017, 3:30
Wednesday, March 1, 2017. 3:30 PM. Webinar: Climate change impacts on lake thermal habitat. Gretchen Hansen, Minnesota Department of Natural Resources; Jordan Read, USGS Office of Water Information. Sponsored by Northeast Climate Science Center. More information here.
Inland waters are warming, with consequences for ecosystem functions and fisheries management. Fish populations in some temperate lakes and streams have experienced range shifts, extirpations, and changes in species dominance, while populations in other nearby waters are comparably resilient. Understanding and predicting thermal refugia within individual waterbodies is an important component of climate adaptation for management agencies. To address these issues, our NE CSC-funded project leveraged several data networks for water temperature and fisheries observations, and created new methods for modeling in order to simulate contemporary (1979-2015) and future (2020-2100) thermal habitat for over ten thousand lakes in Wisconsin, Minnesota, and Michigan. These data allow researchers and managers to better understand heterogeneous responses of lakes and fish communities to climate warming. We will discuss our findings from this project, including lake-specific properties that influence resilience to climate change and help explain among-lake differences in the magnitude and direction of observed and predicted future changes in fish distributions.