Aquatic Invasives

Plant and animal invasives threaten our watersheds in Lake Ontario and elsewhere, but residents can be informed, and learn ways to identify, report, and help control their presence.

Chinese Mystery Snail

Chinese mystery snails can form dense populations and outcompete native species for food and habitat in lakes and streams. Learn the dangers of Chinese mystery snail and how to prevent its spread, here.

Asian Shore Crab

The Asian Shore Crab originated in the western part of the Pacific Ocean and their growing population threaten both coastal ecosystems and aquaculture operations. Learn the dangers of Asian shore crab and how to prevent its spread, here.

Northern Snakehead Fish

Northern snakehead fish are highly invasive and have the potential to disrupt recreational and commercial fishing, harm native fish and wildlife, and impact our economy. Learn the dangers of snakeheads and how to prevent their spread, here.

Fishhook Waterflea

Fishhook waterflea is an aggressive, predatory zooplankton that preys on smaller zooplankton. Learn the dangers of fishhook waterflea and how to prevent its spread, here.

Quagga Mussel

Quagga mussel alters the food web by filtering water and removing plankton which reduces food for native populations of alewives, salmon, whitefish and native mussel species. Learn the dangers of quagga mussel and how to prevent its spread, here.

Sea Lamprey

Sea lamprey have a major detrimental impact on the fish community, ecosystem, along with the fishing and tourist industry. Learn the dangers of sea lamprey and how to prevent its spread, here.

Last updated January 6, 2021