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Ten Threats to the Great Lakes Invasive Species
All | 1) Invasive Species | 2) Nonpoint source pollution | 3) Shoreline development/Wetlands | 4) Cargo ship channels | 5) Point source pollution | 6) Disappearing native species | 7) Pollution hot spots | 8) Air pollution deposition | 9) Polluted beaches | 10) Water withdrawals

Invasive Species
HIDDEN COSTS OF INVASIVES

Today we begin an extensive series called "Ten Threats to the Great Lakes." The Great Lakes Radio Consortium's Lester Graham reports on how the shipping industry helped move goods into the major cities on the Lakes, but they also brought invasive species. He looks at the money Americans spend to deal with invasive species like zebra mussels.


Invasive Species
NATIVES BITE BACK

Invasive species have been a real problem for native species in the Great Lakes, but some native species are turning tails on the invaders. The Great Lakes Radio Consortium's Rebecca Williams reports on the evolving relationship between a rare water snake and an invasive fish.


Invasive Species
PREDICTING NEW INVADERS

There are new problems for the Great Lakes on the horizon. The Great Lakes Radio Consortium's Zach Peterson reports that invasive species are crowding out the native species in the Lakes, and disrupting the natural food chain; Peterson says there will likely be more coming.


Invasive Species
THE EARLIEST INVADER

The Great Lakes Radio Consortium's David Sommerstein reports on how the invasive sea lamprey got into the Great Lakes. In this story he guides us through the history of one of the earliest invaders.


Invasive Species
THE BELOVED INVADER

One of the first invasive species to arrive in the Great Lakes was the alewife. The Great Lakes Radio Consortium's Peter Payette reports on how the alewife has become the most loved invader because it provides food for popular sport fish.


Invasive Species
CLOSING A DOOR

Experts across the country agree that invasive species pose the greatest threat to the Great Lakes. The Great Lakes Radio Consortium's Lester Graham reports on one major route for invasive species… the ballast tanks of ocean-going ships.


Other Stories
Gardeners Have Hand In Invasive Species Control
Invasive Fish Rears Ugly Head in Great Lakes
Invasive Species or Delectable Green?

Bugs Released to Munch on Invasive Plant
Asian Food Stores Adding to Carp Problem?
More Information
A gateway for invasive species information
See a list of non-native species in the Great Lakes
Great Lakes National Program Office on invasives