Bait dumping offers invaders path to Great lakes

Aug 28, 2014 by John Flesher

A scientific paper released Thursday says the bait fish trade represents a serious threat for spreading invasive species in the Great Lakes area.

Researchers say they tested water samples from tanks containing small fish for sale as bait at more than 500 shops around the eight-state region.

Twenty-seven of the samples tested positive for DNA of invasive fish. Three of the positive hits along Lake Erie in Ohio were for Asian carp, which authorities are trying to keep out of the Great Lakes.

Andrew Mahon of Central Michigan University says the findings suggest that at least some invaders are being spread by anglers who dump unused bait into the water.

Notre Dame scientist Chris Jerde says more consistent bait fish regulation among the states is needed.

Explore further: Study shows Asian carp could establish in Lake Erie with little effect to fishery

Related Stories

Asian carp DNA not widespread in the Great Lakes

Apr 04, 2013

Scientists from the University of Notre Dame, The Nature Conservancy, and Central Michigan University presented their findings of Asian carp DNA throughout the Great Lakes in a study published in the Canadian Journal of Fi ...

Efforts to close canal to Great Lakes

Aug 08, 2011

Efforts are underway to try and get the river locks on the Chicago Sanitary and Ship Canal closed in order to stop the spread of two invasive species of fish known as the Asian carp and the Snakehead.

Recommended for you

Ecologists develop new method for mapping poaching threats

May 22, 2015

Ecologists from the University of York, together with the Wildlife Conservation Society (WCS) and the Uganda Wildlife Authority (UWA), have developed a new method to better identify where poachers operate in protected areas.

Serengeti Park disappearing

May 22, 2015

A huge wildebeest herd migrates across the open, parched plains. Dust swirls up from the many hooves pounding the ground, and forms a haze over the landscape. The setting sun gives the scene a golden tinge.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.