Coupled physical-chemical-biological models to predict losses of cold-water fish from inland lakes under climate warming

Project Type: 
Core Research Project
Project Leader: 
Project Fellows: 
Science Themes: 

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.