Cold-water fish are disappearing from many Midwestern lakes as they warm. This loss is due to a combination of de-oxygenation of the deep waters with heating of the surface waters. Together, these climate-driven changes squeeze the depth distribution of fish that require cold, well-oxygenated water, sometimes eliminating their habitat entirely. We will investigate where this combination of factors has likely caused extirpation of cold-water fishes, and where future warming is most likely to eliminate more populations. The goals are to: 1) Manage cold-water lake fishes. 2) Manage fish species of special concenr in the state. 3) Guide pre-emptive efforts to prioritize sites for management interventions.
- NE CSC Seminar "Climate Change and Loss of Tributary Connections in the World's Great Lakes" presented on April 20, 2016