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Lake Conservation Webinar Series: Dissolved oxygen in warming lakes
Dissolved oxygen (DO) is a fundamental component of lake ecosystems. It is an important attribute of habitat such that low levels make habitat unsuitable for most aerobic organisms. In addition, because of its role in redox reactions, DO strongly influences water chemistry. Low oxygen can result in internal loading of limiting nutrients, accumulation of the greenhouse gas methane, as well as formation of the toxic form of mercury in the water column. Therefore, changes to lake DO strongly impact the functioning of lake ecosystems with implications for drinking water quality, biodiversity, and possibly, fish toxicity. In theory, DO should respond to warming surface waters through a variety of mechanisms. This talk will summarize recently published work that used long-term and geographically extensive lake water quality data to explore the relationship between warming of surface waters and DO.

Mar 28, 2023 02:00 PM in Eastern Time (US and Canada)

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Speakers

Stephen Jane
Atkinson Postdoctoral Fellow @Cornell University
Stephen Jane is a postdoctoral researcher at Cornell University. He has broad experience in aquatic research ranging from environmental DNA behavior in small mountain streams to hurricane impacts to coastal-marine fauna. His current work focuses on the impact of warming surface waters on these systems with an emphasis on lake ecosystems. Dr. Jane’s work explores the effects warming has on the physical and chemical aspects of these systems, often employing computational and data-intensive approaches. Recent work includes a human health component as it examines the potential for warming-induced deoxygenation of lakes to enhance the bioaccumulation of toxic mercury in fishes sought by anglers.

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