Aquatic Invasive Species (AIS) Click for the Rusty Crayfish harvest volunteer’s calendar and sign-up 2023 Rusty Crayfish Harvest by Date & Loc (click or)Download 2022 Rusty Crayfish Count by Location (click or)Download Cook County AIS Infestations (click to view) orDownload Caribou Crayfish 2020 (click to view) orDownload Spiny Water Flea Sample – August 2020 (click to view) orDownload Rusty Crayfish Factsheet (click to view) orDownload Spiney Water Flea Factsheet (click to view) orDownload Eurasian Water Milfoil (click to view) orDownload Click to view: AIS Volunteer Refresher Training | Minnesota DNR (state.mn.us)
