Invasive Fish

Northern Snakehead

Although originating in parts of Asia and Russia the Northern Snakehead Fish is an invasive species to the PNW. It can grow up to 33in when reaching adulthood and commonly weighs 10-12lbs although, schools of invasive Snakeheads have been found weighing up to 20lbs.


Kelly Eriksen

Oriental Weatherfish

The Oriental Weatherfish, also known as the Pond Loach is native to eastern Asia, and was introduced to North America in the twentieth century. It is a freshwater fish that usually lives in muddy, shallow water, and is considered invasive because it competes with native fishes for food and habitat, and because it is a predator for other native aquatic species.

Photo credit: US Fish & Wildlife Service

Melozie Madland