A documentary on invasive species in Lake Huron is being shown at the Thunder Bay National Marine Sanctuary's Great Lakes Maritime Heritage Center.
The film titled "Lake Invaders: The Fight for Lake Huron" was produced by faculty and students at Grand Valley State University in Allendale. A free screening and question-and-answer session was scheduled for Saturday night in Alpena.
The film was two years in the making and explores the threat invasive species have posed to the lake. It features state Department of Natural Resources staff from Alpena and the DNR's Chinook research vessel.
The DNR in Alpena for more than 60 years has studied invasive species in Lake Huron, including sea lamprey, alewives, zebra mussels and round gobies.