Fish swimming with the salmon

From Harry Jennings: “I easily recognize the sockeye salmon under the bridge, but what are the other grey plentiful fish appearing to be heading upstream as well?”
Many people were excited to see the sockeye salmon swimming under the Nekw7usem bridge into Williams Lake this September. It has been several years since they have been seen here. The other fish with them are Northern Pikeminnow, previously known as Northern Squawfish. They are recognized by their dark green backs, cream abdomen, and strongly forked tail. They are common in Interior BC but are predatory and considered pests because they feed on salmon fry and eggs. They often accompany migrating salmon.