Walleye fish populations are in decline

Walleye, an iconic native fish species in Wisconsin, the upper Midwest and Canada, are in decline in northern Wisconsin lakes, according to a study published this week in the Canadian Journal of Fisheries and Aquatic Sciences.

Researchers explore walleye for aquaculture

More than a thousand walleye are in the six sets of circular water tanks at the UW-Stevens Point Aquaponics Innovation Center in Montello, Wis. And they swim around in near-total darkness, their environment protected by several ...

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 ...