2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/20/2019 | 2:15 PM - 2:30 PM | THE EFFECT OF EXTREME FLOOD EVENTS ON LARGE LAKES: ZOOPLANKTON COMMUNITY DYNAMICS IN LAKE CHAMPLAIN | 254 B
THE EFFECT OF EXTREME FLOOD EVENTS ON LARGE LAKES: ZOOPLANKTON COMMUNITY DYNAMICS IN LAKE CHAMPLAIN
Lake Champlain experienced two major flood events in 2011: a record spring flood and a major Fall rain event. In this study, we assessed zooplankton community responses to major flooding a large lake. Responses were species specific including flood adapted, tolerant, or intolerant population impacts. We observed major shifts in community composition associated with flooding in 2011. Density patterns varied from reduced density (e.g, Daphnia retrocurva), to a neutral response (e.g., Diacyclops thomasi), to increased density (e.g., Ceriodaphnia spp.). The timing of responses varied by group. In rotifers, early (June) seasonality patterns were not impacted but population effects were observed in the summer (August-September). Taxa that increased or did not respond may be considered flood-adapted or flood tolerant. Lake Champlain zooplankton responses to 2011 flood events suggest that increased flooding under future climate change scenarios may have predictable impacts on large lake systems.
- Zooplankton
- Flood
- Lentic
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Presenters/Authors
Timothy Mihuc
(), SUNY Plattsburgh, mihuctb@plattsburgh.edu;
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