Climate Change Threatens California Freshwater Fish. We Can Do Something About It, Experts Say.

Fish die-offs in freshwater lakes are an increasing threat in California, and experts say climate change is to blame. Researchers from UC Davis and Reed College in Portland, Ore., found a strong link between fish deaths in freshwater lakes in Wisconsin and hot summers. They predict that fish die-offs will double by 2050 and quadruple by 2100 in Wisconsin. Andrew Rypel, a UC Davis wildlife, fish and conservation biology researcher, said we should expect similar effects in California. He told The Bee in an interview that California lakes may be even more vulnerable to the effects of climate change than those in Wisconsin, because they host many sensitive cold-water species.