Dec 13
It’s no joke—in many places, fish can’t get to the other side of a road. Listen up for the why and so what: Turns out, fish can’t just go with the flow after all. According to research out of the University of Wisconsin-Madison, more than 1,000 dams and 100,000 road crossings inhibit fish movement in …
Permanent link to this article: http://www.currentcast.org/development/fish-barriers-great-lakes/
Dec 12
How are man-made islands helping young fish traveling through the Milwaukee Estuary? Listen up: Sometimes fish need a break, too. This is a story of how human development has actually helped fish find places to rest and eat as they move through the aquatic urban jungle. One sixth its former size, the Milwaukee Estuary is …
Permanent link to this article: http://www.currentcast.org/development/helping-fish-survive-an-urban-gauntlet/
Jul 16
A middle-of-the-food-web fish: Ciscoes were once abundant in the Great Lakes. But these native fish were depleted by overfishing, invasive species, and pollution. Ellen George, a grad student in the Cornell Department of Natural Resources, wants to see them come back. She says some of the invasive fish that replaced ciscoes in the food chain …
Permanent link to this article: http://www.currentcast.org/sustainable-fisheries/ciscoes-a-great-snack-for-great-lakes-fish/
Jul 03
Lake herring are making a comeback in the Great Lakes. Listen up: Until the sixties, schools of slender silvery cisco swam the Great Lakes, feeding on zooplankton, and dodging predators. Fishermen called them ‘lake herring.’ “They were one of the most abundant species across the great lakes. And at one time they comprised the largest …
Permanent link to this article: http://www.currentcast.org/sustainable-fisheries/a-fish-called-cisco/
Feb 14
Bighead and silver carp can grow up to four feet long and gobble up food that native fish rely on. These invasive fish are in the Mississippi, Missouri, and Illinois rivers. And if they get into the Great Lakes, they could do enormous damage. John Dettmers, of the Great Lakes Fishery Commission, says one strategy …
Permanent link to this article: http://www.currentcast.org/sustainable-fisheries/5040/
