08-31-2009, 08:19 PM
the coho actualy became extinct in 1987 here is some good stuff on them. the nez pearce are doing some great stuff with them, i am curious if they will ever do something like this up by stanley in valley creek i have heard they use to be thick in there
Snake River coho are just one of the 106 runs of Columbia River Basin anadromous fish that became extinct over time. But the story of these fish is unique because their extinction occurred recently and almost nothing was done to stop it.
In 1986, five years before petitions would be filed to add Snake River Chinook and sockeye salmon to the federal endangered species list, a single adult Snake River coho salmon crossed Lower Granite Dam on its futile return to spawn. With none of the news media fanfare that would accompany the 1991 Endangered Species Act petitions, in fact in a year when 6,895 spring Chinook, 3,934 summer Chinook, 449 fall Chinook and 15 sockeye crossed the dam, a single coho returning to spawn somewhere in one of the lower Snake River tributaries that once ran thick with them was virtually unnoticed. But with no mate, there would be no spawning. A single coho had returned in 1985, as well, but in 1987 the count was zero, and it would remain zero until 1997.
No more Snake River coho.
In 1995, the Nez Perce Tribe of Idaho began a reintroduction program by releasing into the Clearwater River Basin 630,000 coho fry reared in Mitchell Act hatcheries in the lower Columbia River. The program has been moderately successful. Coho are known to be opportunistic, prolific spawners, and the first adult returns were noted at Lower Granite Dam in 1997, a total of 85 fish. The number of returning adults grew steadily. In 2000, a total of 891 adults and 36 jacks were counted, a smolt-to-adult return ratio of less than one-tenth of one percent compared to the number of juveniles that had been released, a rate that scientists consider low. The count at Lower Granite topped 1,000 fish for the first time in 2003, and was more than 3,000 in 2004 and more than 2,000 in 2005. Jack counts have increased, as well, consistently topping 100 fish per year. In 2006, for example, a total of 263 jacks were counted at Lower Granite, the highest since 460 were counted in 1976. The 2006 adult count was lower than in recent years — 1,141 — but the trend remains upward.
The returns are not spectacular, but the fish aren’t failing, either. This is good news for an important salmon population that was swept under the rug and then revived, at least in the native habitat if not with native fish.
[url "http://www.nwcouncil.org/history/Extinction.asp"]http://www.nwcouncil.org/history/Extinction.asp[/url]
i read and posted a couple great links about this project this spring. maybe i will go search for them a bit. but yes and awsome program. Keep in mind every time you see an indian snagging, netting, harpooning a fish that if it wasnt for some of there projects. there may not be any fish or any of the awarness.
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Snake River coho are just one of the 106 runs of Columbia River Basin anadromous fish that became extinct over time. But the story of these fish is unique because their extinction occurred recently and almost nothing was done to stop it.
In 1986, five years before petitions would be filed to add Snake River Chinook and sockeye salmon to the federal endangered species list, a single adult Snake River coho salmon crossed Lower Granite Dam on its futile return to spawn. With none of the news media fanfare that would accompany the 1991 Endangered Species Act petitions, in fact in a year when 6,895 spring Chinook, 3,934 summer Chinook, 449 fall Chinook and 15 sockeye crossed the dam, a single coho returning to spawn somewhere in one of the lower Snake River tributaries that once ran thick with them was virtually unnoticed. But with no mate, there would be no spawning. A single coho had returned in 1985, as well, but in 1987 the count was zero, and it would remain zero until 1997.
No more Snake River coho.
In 1995, the Nez Perce Tribe of Idaho began a reintroduction program by releasing into the Clearwater River Basin 630,000 coho fry reared in Mitchell Act hatcheries in the lower Columbia River. The program has been moderately successful. Coho are known to be opportunistic, prolific spawners, and the first adult returns were noted at Lower Granite Dam in 1997, a total of 85 fish. The number of returning adults grew steadily. In 2000, a total of 891 adults and 36 jacks were counted, a smolt-to-adult return ratio of less than one-tenth of one percent compared to the number of juveniles that had been released, a rate that scientists consider low. The count at Lower Granite topped 1,000 fish for the first time in 2003, and was more than 3,000 in 2004 and more than 2,000 in 2005. Jack counts have increased, as well, consistently topping 100 fish per year. In 2006, for example, a total of 263 jacks were counted at Lower Granite, the highest since 460 were counted in 1976. The 2006 adult count was lower than in recent years — 1,141 — but the trend remains upward.
The returns are not spectacular, but the fish aren’t failing, either. This is good news for an important salmon population that was swept under the rug and then revived, at least in the native habitat if not with native fish.
[url "http://www.nwcouncil.org/history/Extinction.asp"]http://www.nwcouncil.org/history/Extinction.asp[/url]
i read and posted a couple great links about this project this spring. maybe i will go search for them a bit. but yes and awsome program. Keep in mind every time you see an indian snagging, netting, harpooning a fish that if it wasnt for some of there projects. there may not be any fish or any of the awarness.
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