The coho salmon (Oncorhynchus kisutch; Karuk: achvuun [1]) is a species of anadromous fish in the salmon family and one of the five Pacific salmon species. Coho salmon are also known as silver salmon (or "silvers") and is often sold as medium red salmon. [2] The scientific species name is based on the Russian common name kizhuch (кижуч).

Coho salmon are a species of Pacific salmon which inhabit the Pacific coast in California, Oregon, Washington, British Columbia, and Alaska. These fish are also known as silver salmon. The average size adult coho is around 24 inches and 8-9 pounds, but can range up to 20 pounds.

2024年12月4日 · Coho salmon are anadromous—they hatch in freshwater streams and spend a year in streams and rivers then migrate out to the saltwater environment of the ocean to feed and grow. Some stocks of coho salmon migrate more than 1,000 miles in the ocean, while other stocks remain in marine areas close to the streams where they were born.

freshwater. Juveniles migrate to the ocean in the spring where the remainder of their life cycle is spent in the Pacific Ocean and its estuaries. Some stocks of coho salmon migrate more than 1,000 miles in the ocean, while other stocks remain in marine areas close to the streams where they were born. Coho salmon fry. Photo by Roger Tabor, USFWS ...

2024年9月12日 · Coho salmon are an anadromous fish, which means they can live in both fresh and saltwater. Coho salmon have a relatively complex life history that includes spawning and juvenile rearing in rivers for at least one summer followed by migrating to saltwater to feed, grow, and mature before returning to freshwater to spawn.

Adult Coho Salmon enter fresh water to spawn from September through January. In the short coastal streams of California, migration usually begins between mid-November and mid-January. Coho Salmon move upstream after heavy rains open the sand bars that can form at the mouths of many California coastal streams, but may enter larger rivers earlier.

Coho salmon begin life in freshwater tributaries all along the Pacific coast. Coho spend approximately the first half of their life cycle (18 months) rearing and feeding in streams and small freshwater tributaries.

Young coho in freshwater feed on plankton and insects. When they reach the ocean, their diet consists of herring, pilchards, sand lance, squid and crustaceans. Coho that live only in freshwater also eat plankton and insects in their youth and baitfish …

In 2005, anglers throughout Alaska caught 1.4 million coho salmon. In salt water they are taken primarily by trolling or mooching (drifting) with herring or with flies or lures along shore. In fresh water they hit salmon eggs, flies, spoons, or spinners. Coho are spectacular fighters and the most acrobatic of the Pacific salmon.

Adults spend their lives in the ocean, and return to freshwater to spawn and die. Redds – When they reach their preferred freshwater streams and creeks, the females dig shallow nests known as “redds.” They bury the clutches of eggs safely beneath the gravel to protect them from predators.