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coho
(redirected from coho salmon)

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coho

 or silver salmon

Species (Oncorhynchus kisutch) of salmon prized for food and sport that ranges from the Bering Sea to Japan and the Salinas River of Monterey Bay, Cal. It weighs about 10 lbs (4.5 kg) and is recognized by the small spots on the back and upper tail-fin lobe. Young cohos stay in freshwater for about one year before entering North Pacific waters; they mature in about three years. Some landlocked populations spend their entire lives in freshwater. Cohos were successfully transplanted in the 1970s into Lake Michigan as a game fish.



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A 30-minute exposure to a 1 parts per billion (ppb) concentration of atrazine reduced the activity of olfactory neurons in coho salmon (Oncorhynchus kisutch) by 11 percent, the researchers reported last November at the annual meeting of the Society of Environmental Toxicology and Chemistry (SETAC) in Montreal.
Aquatic non-scents: repercussions of water pollutants that mute smell by Raloff, Janet / Science News
In Chile, infestation with Diphyllobothrium plerocercoids has also been detected in coho salmon living in the wild, a nonindigenous species raised originally in aquaculture that escaped from pens (19).
Salmon aquaculture and transmission of the fish tapeworm by Cabello, Felipe C. / Emerging Infectious Diseases
In late 1964 and early 1965, fishery managers in Michigan stocked the lake with 1 million surplus coho salmon eggs from Oregon and by the time those fish reached spawning age in 1966 and 1967, the experiment proved such a success that "coho fever" spread like wildfire around Lake Michigan.
Life's great on the lake by Lydecker, Ryck / BOAT/U.S. Magazine
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