Invasive Species

Signal Crayfish in Buskin Lake

Signal Crayfish in Buskin Lake


Invasive species are plants, animals and insects that are “not from here”. Often they are also referred to as exotic, non-native, or invasive.  Once an invasive species becomes established, they often out-compete natural vegetation or animals, quickly take over a habitat, and can be quite destructive.

In Kodiak, Signal Crayfish (Pacifastacus leniusculus) are not native to the Island and they have the potential to damage salmon habitat throughout Kodiak Island. The Sun’aq Tribe of Kodiak Natural Resources Department (NRD) is working towards learning more about and stopping the spread of this invasive species. Please contact the Sun’aq Tribe of Kodiak at (907) 486-4449 or the Kodiak Soil and Water Conservation District at (907) 486-5574 with any information concerning crayfish sightings and the locations on Kodiak Island.

Click here for more information on signal crayfish on Kodiak Island.

Alaska Weeds ID – iOS App


  •  Interactive key that allows users to identify plant species by selecting plant features. A picture is always displayed showing the difference between various features, such as leaf shape and leaf arrangement.
  • Images and information on over 60 high priority invasive plants.
  • Easy species reporting that captures your current location and allows you to submit images of your observation. AK Invaders allows for both online and offline reporting with reports saved on your phone for uploading when you have network connectivity.
  • Real-time point distribution maps centered on your current  location.