2 new species of crayfish identified in Pacific Northwest — and they’re already at risk

Two new species of crayfish have recently been discovered in the Pacific Northwest region of North America, raising concerns about their vulnerability to extinction. Biologist Eric Larson has identified these two species as the “misfortunate crayfish,” primarily found in central Oregon, and the Okanagan crayfish, located in British Columbia’s Okanagan Lake.

Previously mistaken for the signal crayfish, which is the most common species in the West Coast, these newly identified crayfish species have distinct characteristics that set them apart. The Okanagan crayfish, in particular, can be distinguished by the absence or reduction of a white mark on its claw.

Professor Eric Taylor of the University of British Columbia emphasizes the importance of accurately identifying different species, not only for understanding biodiversity but also for studying the ecosystem and implementing conservation efforts. With the smaller populations of the Okanagan and misfortunate crayfish already at risk of extinction, conservationists are urged to take action to protect these unique species.

The Okanagan crayfish, in particular, faces threats due to its habitat in Okanagan Lake, which is heavily impacted by human activities. Larson highlights the dangers of introducing invasive crayfish species, such as the virile crayfish and rusty crayfish, which could displace the native populations and disrupt the ecosystem.

Invasive crayfish species not only pose a threat to native species but also contribute to the destruction of aquatic plants, infrastructure, and the spread of diseases. The Department of Fisheries and Oceans warns about the potential impacts of invasive crayfish on aquatic environments, emphasizing the need to prevent their introduction to new areas.

Conservation efforts are crucial to safeguard the unique biodiversity of the Pacific Northwest and protect vulnerable species like the Okanagan and misfortunate crayfish. By raising awareness and implementing measures to prevent the spread of invasive species, researchers and conservationists can work together to preserve these newly discovered crayfish species for future generations.