Minnesota Aquatic Invasive Species Research Center (MAISRC)
Hybrid watermilfoil map available
A new map showing instances of Eurasian, hybrid, and northern watermilfoil is now available from MAISRC. This map was created following field work around the state to quantify the genetic diversity of Eurasian, hybrid, and northern watermilfoil. Note that this map shows presence data in the 62 Minnesota lakes sampled and is not a complete record of occurrences throughout the state.
Researchers are using this knowledge to identify whether different genotypes represent increased invasiveness, if there are patterns of hybrid watermilfoil invasions, and how hybrid watermilfoil is interacting with native plant communities.
After genetic identification was completed in partnership with Montana State University, researchers found that Eurasian watermilfoil is the least genetically diverse while Northern watermilfoil is the most diverse. Most lakes with Northern watermilfoil had multiple different genotypes of Northern watermilfoil and no genotypes were shared between lakes. Check out the map to see which lakes had which species.