Grass carp are living in the Great Lakes, according to a new international study. "Unfortunately, the news is not good," said Robert Hecky, vice-chair of the Great Lakes Fishery Commission. "The assessment suggests grass carp pose substantial risk to the Great Lakes." Geological Survey)"Grass carp have been in the Great Lakes for ... probably 30 years or even more but they've been sterile," said Mark Gaden, with the Great Lakes Fishery Commission. "Lately ... we've been seeing recurring incidents of fertile grass carp in the Great Lakes.

Source: CBC News January 27, 2017 20:55 UTC