Good news out of Minnesota.
Along with the general trout season getting underway on April 13, there's promising news on the invasive species front.
The Minnesota Aquatic Invasive Species Research Center at the University of Minnesota (MAISRC) and U.S. Geological Survey and the Minnesota Department of Natural Resources (DNR) have concluded in a recent report that water samples from the Mississippi and St. Croix rivers has showed little evidence of bighead or silver carp.
While recent captures by commercial fisheries show these invasive fish are present in Minnesota, officials say their numbers are likely still relatively low.
"The differences between the 2011 and 2012 eDNA testing results may be partly attributable to the evolving technology," noted Peter Sorensen, MAISRC director, and leader of the research team. "As the bighead results show, this particular technique needs to be refined for detecting this species in open waters."