Archive for Species Specific News

Invasive green crab count hits 87 on Washington’s Dungeness Spit

As crabbing season reaches its midpoint in the area, state and federal resource managers report they’ve caught 87 of the invasive European green crab on the Dungeness Spit. The most recent totals from July 6 show they’ve trapped 51 males and 36 females, said Allen Pleus, Aquatic Invasive Species coordinator for the Washington Department of […]

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Frogbit grows in shallow rivers, swamps, ponds in Michigan

European frogbit is a native species to Switzerland and it has become an invasive species to North America. The aquatic plant grows in shallow rivers, swamps and ponds, said NEMIGLSI (Northeast Michigan Great Lakes Stewardship Initiative) Program Coordinator Meaghan Gass. In Alpena it can be found in Duck Park, Fletcher Pond and the Wildlife Sanctuary, […]

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Lake Minnetonka zebra mussel project continues

A study is continuing in Lake Minnetonka this year on a potential new method to control zebra mussel populations. Researchers from the Minnehaha Creek Watershed District and the Minnesota Aquatic Invasive Species Research Center are testing low doses of a copper-based product to kill off or at least slow the spread of zebra mussel larvae, […]

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Two weeks, 43 miles of net, 365 electro-fishing runs and no new Asian carp

A gasp heard around the entire Great Lakes region went up late last month when a commercial fisherman caught a silver carp below the T.J. O’Brien Lock and Dam, a mere nine miles south of Lake  Michigan. The intense two-week emergency response by the Asian Carp Regional Coordinating Committee, DNR and other agencies included close monitoring of the rivers […]

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Japanese Biologists call for urgent nationwide response to stop fire ant infestation

Biologists have called for urgent nationwide action to prevent venomous fire ants infesting Japan, after the highly invasive species was spotted at several major ports in the country including Tokyo. “Japan needs to fight the insects as a national project,” Takahiro Murakami, associate professor of behavioral biology at Kyushu University, said. “The government must implement […]

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A Call For Citizen Scientists To Remove Asian Clams In Sandy Bay

Last year, 475 Asian clams — a small clam, less than 1.5 inches in size, that can spread rapidly — were removed from Lake George, thanks to a half day of work from about 20 volunteers as part of the Lake George Association’s Asian Clam Citizen Science Day in Sandy Bay. The association hopes for […]

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Intensive fishing finds no more Asian carp beyond barrier

Two weeks of intensive fishing in and around a Chicago waterway failed to produce any proof that more Asian carp have made it past electronic barriers intended to keep the invasive species out of Lake Michigan. The Free Press reported two weeks ago that a live 8-pound, 28-inch-long silver carp was caught beyond the barriers […]

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A record 1,079 lionfish harvested at Mote derby

Divers brought in 1,079 of the voracious, invasive lionfish to the Sarasota Lionfish Derby on Sunday, by far the most for the event in the last four years. So, what does it mean? Probably that there are more lionfish in local waters, and fishermen are getting better at finding them. Danny Ward of Sarasota, one […]

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Ohio Department of Natural Resources takes precaution against Asian carp

Species of Asian carp, including bighead carp, silver carp, grass carp, and black carp, were intentionally introduced into the United States for different purposes, but each pose a threat to Ohio’s aquatic ecosystems including Lake Erie. Grass carp were imported into Alabama and Arkansas aquaculture facilities in 1963 to control vegetation in rearing ponds and black carp were brought to the United States […]

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Tench can live anywhere and will eat anything – And that’s the problem

You wouldn’t think minnows, which seem like benign 1:200 scale models of real fish, would garner complaints. How much trouble can a minnow cause? Potentially a lot, if it’s real big and has an enormous tribe. It may be a card-carrying member of the minnow family, but the invasive tench (Tinca tinca) can grow to […]

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