You’ve heard the story: many of our exotic species — Eurasian ruffe, round gobies, and zebra mussels — apparently hitched a ride on ocean-going vessels, hiding in the ship’s ballast water and then gained a foothold in the Great Lakes after the water was released. If Allegra Cangelosi of the Northeast Midwest Institute and Richard Harkins of the Lake Carriers Association succeed, aquatic organisms may no longer get such an easy ride from their homes in Europe to America.
Two Superior, WI, teenagers discovered a thriving population of round gobies (Neogobius melanostomus), an exotic fish, in the Duluth-Superior harbor this summer.
The good and the bad news about marketing lamprey in Europe were presented at a seminar held at the Great Lakes Science Center in Ann Arbor, MI, in June.
The University of Minnesota Sea Grant Web site was named site of the month for July by the Great Lakes Information Network (GLIN).
Find out what Steve Hedtke does when he’s not at Minnesota Sea Grant advisory committee meetings. Hedtke is acting director for the U.S. Environmental Protection Agency’s freshwater research laboratory in Duluth, MN.
Five Minnesota Sea Grant staff members received promotions or awards.
Male round gobies will make the ultimate sacrifice for their young.
Minnesota Sea Grant Director Mike McDonald discusses the harm behind the attitude that the spread of some exotic species is “just a matter of time.”
New Publications & Services
This updated brochure contains facts about the greatest Great Lake, Lake Superior.
Sea Grant has produced a compact disk version of its award-winning Sea Grant Nonindigenous Species (sgnis) Web site. If you don’t have Internet access, this CD is your best source for comprehensive information on zebra mussels, Eurasian ruffe, round gobies, and other aquatic nuisance species. Cost is $14.
Two new videos are available from the University of Minnesota to help landowners restore or maintain a natural shoreline. Cost is $15 each, plus tax and shipping.
This lists five recently-published scientific journal reprints we have available for free.
“A Computer Program for Analyzing the Growth of Fish,” developed by Sanford Weisberg, professor of applied statistics at the University of Minnesota, is still one of the best available. Cost is $25.