Invasive zebra mussels detected on a boat. The only other state with zebra mussel dogs is California, with 17.
Brian Peterson , Star Tribune
Zebra mussels dip on Lake Mille Lacs
- Associated Press
- August 23, 2013 - 2:57 PM
AITKIN, Minn. — The number of zebra mussels on Lake Mille Lacs has dropped this year for the first time since they were found in 2005.
Minnesota outdoors officials say a survey this week found about 1,070 zebra mussels per square foot. That's down by about 200 from a year ago.
Department of Natural Resources treaties manager Tom Jones says it's typical for an invading species to ramp up in big numbers and then fall back a bit. Jones says in other places invasives have often dropped by as much as a third after initial expansion.
Jones tells Minnesota Public Radio (http://bit.ly/1da88WF ) that researchers will need more data next year to see if this year is the start of a decline or a one-time thing.
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