Ballast water could deliver next invaders
SPICER — Ballast water discharged from ships in the Great Lakes could deliver the next invaders to Minnesota’s waters.
The arrival of golden mussels would represent a “triple strike’’ for the Great Lakes, said Green when speaking at a Minnesota Department of Natural Resources Roundtable held Jan. 11 in Bloomington.The mussels colonize habitats that zebra mussels and quagga mussels do not. No different than zebra mussels and quagga mussels, golden mussels displace native mussel species.Killer shrimp look like shrimp, but are actually a small, 1.2-inch crustacean. Their small size belies the menace they pose.Green said they are indiscriminate killers that will literally attack and kill more prey than they can eat. “This thing doesn’t care if it is hungry or not. If it moves and it is its prey, it kills it.’’