Invasive species Jodey & Eric
Rock Snot Came from: Europe Affected Organisms: Fish, Bottom Dwellers. Arrival: Migrating through stream beds Impact: Covers long stretches of stream beds, choking organisms. Method of control: Freezing
Round Gobies Came from: Eurasia, Black Sea Arrival: They were brought in through ballat water Impact: They have no predators and no compotition Affected Organisms: Fish Method of control: Electrical Barriers
Water chestnut Came from: Asia Arrival: Grown at a Harvard Botanical Garden but some were released for overpopulation reasons. Impact: Blocks light for native species, little nutritional value. Affected Organisms: Fish, Waterfoul Method of control: Pull them out of the water, Clean boat to prevent them from latching on and spreading.
Asian Longhorn Beetle Came from: China, Korean Peninsula Arrival: It came in solid wood packaging and crates/pallets Impact: Kills wide ratio of native trees Affected Organisms: Trees (Maple) Method of control: N/A
Eurasian Watermilfoil Came from: United States Arrival: Used as aquarium decorations until released Impact: Overtakes habitats, rids environments of native plants Affected Organisms: Fish, Wetland Plants and Habitants Method of control: Hand pull them out, Harvest, Rake, DON’T CUT.
Sea Lamprey Came from: Atlantic ocean, St. Lawrence River Arrival: Entered the Great Lakes by migrating through canals. Impact: Kills fish Affected Organisms: Fish Method of control: Lmapracide TFM
Japanese Knotweed Came from: Japan Arrival: Decorations for estates in the late 1800’s until farmers started growing more. Impact: Crowds and Shades out native vegetation. Affected Organisms: Water and Fish quality, Entries to waterways. Method of control: Pulling them from environment, Chemicals
Sirex Woodwasp Came from: Europe, Asia, North Africa Arrival: It was brought to America through wood shipments Impact: It burrows in pine trees and makes nests in them Affected Organisms: Pine trees Method of control: Use other parasitic wasps to hunt them down.
Giant Hogweed Came from: Eurasia Arrival: Brought to the U.S. as an ornamental plant. Impact: Stops growth of native plants, Sap burns human skin Affected Organisms: Humans, Plants Method of control: Herbicide treatment
Hemlock Wooly Adelgid Came from: Japan Arrival: It was attached to pine trees that were being shipped. Impact: They kill plants, and trees by absorbing their nutrients Affected Organisms: Hemlock, Spruce Method of control, Chemical treatment, Natural predetors.