Fish respond to predator attack by doubling growth rate

Scientists have known for years that when some fish sense predators eating members of their species, they try to depart the scene of the crime and swim toward safer waters. This sensible behavior is exactly what evolution ...

Climate change threatens Lake Erie's yellow perch

Research has suggested yellow perch grow more rapidly during the short winters resulting from climate change, but a new study shows warmer water temperatures can lead to the production of less hardy eggs and larvae that have ...

New method distinguishes yellow perch females from males

A plentiful supply of yellow perch was once available in the U.S. Great Lakes region, but that changed in the 1990s. Populations of this Midwest fish-fry favorite dropped dramatically due to the invasion of the zebra mussel, ...

Robot submarine patrols Lake Michigan for climate-change study

Researchers at Purdue University are using a robotic submarine and other specialized tools in Lake Michigan to gather biological and environmental data showing how young fish vital to the ecosystem may cope with future climate ...