Hatchery biologists joined partners from the Park Service the Minnesota-Wisconsin Ecological Services Field Office, U.S.G.S., and the University of Minnesota to search for displaying Winged Mapleleaf this year. Over the past 6 years we’ve experienced different patterns of flow and temperature across the fall and this year is different still, with very low water levels and persistent warm temperatures. The Winged Mapleleaf responded and have been active early, but the warmer temperatures seems to be acting to slow down their displays. We found the first female in full display in the shallows on Thursday 9/22, an exciting start. We’ll be out on the river every other day for another week or so to ensure we find enough females to infest all of our host fish. We have many plans for any mussel larvae, from collaborative projects with U.S.G.S., to producing juveniles for our own culture at the hatchery.
By: Megan Bradley