Journal
LAKE AND RESERVOIR MANAGEMENT
Volume 28, Issue 4, Pages 338-345Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07438141.2012.745911
Keywords
climate change; curlyleaf pondweed; macrophyte cover; Minnesota; point-intercept; Potamogeton crispus; snow; temperature
Categories
Funding
- Minnesota's Game and Fish Fund
- Dingell-Johnson Sportfish Restoration Act [F-26-R36]
- Environment and Natural Resources Trust Fund [067-B4]
- Minnesota Pollution Control Agency
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Curlyleaf pondweed (Potamogeton crispus) is a long-established, nonnative aquatic plant common throughout southern and central Minnesota that is thought to be expanding northward. Curlyleaf pondweed typically grows abundantly in spring in productive lakes and then senesces in midsummer, often followed by algae blooms. We report observations of widespread, short-term declines in curlyleaf pondweed cover that appear linked to winter snow depth on frozen lakes. These findings suggest that climate change may greatly affect habitat suitability for curlyleaf pondweed. As Minnesota lakes warm with less snow cover limiting light penetration, curlyleaf pondweed growth will likely increase. These observations form the foundation for targeted follow up studies that more precisely describe conditions limiting the growth and expansion of curlyleaf pondweed in north-temperate, North American lakes.
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