Cory Goldsworthy

2 Collection Items

• 'Vampire of the Great Lakes' still haunts Lake Superior fish

  MPR’s Dan Kraker looks into the ongoing battle to control sea lamprey in the Great Lakes. It was one of the earliest aquatic nonnative species to invade the U.S., long before zebra mussels and Asian carp garnered headlines. Its also been one of the most destructive, wiping out lake trout populations.

  Oct. 31, 20174 minSave
• Tough times, overfishing shake Superior's herring fleet

  MPR’s Dan Kraker reports on the decline of lake herring, called cisco in Lake Superior. The fish typically aggregate in thick schools in the late fall when they swim to shore to spawn. But overfishing in parts of Superior regulated by Wisconsin, and a decline in fish survival, have caused cisco numbers on the Minnesota side of the lake to plummet, putting the lake's small but iconic commercial fishery in jeopardy.

  Dec. 2, 20154 minSave