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#1061047 - 11/25/22 01:23 PM Re: Oly. Capital Lake/Dechutes R. Estuary Improvements [Re: RUNnGUN]
Smalma Offline
River Nutrients

Registered: 11/25/01
Posts: 2844
Loc: Marysville
A couple comments_

1) Yes it looks like the Tumwater hatchery is now self-sufficient. This year there was 3,261 chinook spawned out of a run 13700 adults (and 1,880 jacks).

2) Following the ESA listing of Puget Sound Chinook the use of in-sound nets for Chinook were ended. The problem was that any of the uncaught chinook did not home very well to the release sites. Sampling at the time of natural spawning Chinook throughout the Puget Sound rivers had a significant number (an unacceptable number) of fish reared in net pens.

3) Increasing the number of hatchery produce chinook to benefit is another ESA myth. The resident orcas are large animals that evolved feeding on large Chinook (40/50 lbers) that were common pre 1900. A large male orca requires roughly 450 pounds of chinook a day. Having to catch 40 to 50 hatchery chinook to meet their diet needs is much more difficult that a 125 years ago when it only took 10 or less fish. If the State were truly serious of providing Chinook to meet the orcas' diet needs there would be serious selective breeding at hatchery racks to increase the size of the returning adults. Currently the average adult hatchery Chinook returning to Puget Sound is only 3.6 years old with an average length of 28.5 inches (8 to 10 lbs).

curt

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#1061048 - 11/25/22 04:27 PM Re: Oly. Capital Lake/Dechutes R. Estuary Improvements [Re: RUNnGUN]
Carcassman Offline
River Nutrients

Registered: 11/21/07
Posts: 7411
Loc: Olema,California,Planet Earth
I really don't understand why folks on Chinook as end-all, be-all, save-all for SRKWs. At best we had adult Chinook April-September; the rest of the year that ate other salmon. I know that they can and will go after chum, having seen them clean out Dyes Inlet one year.

We know, because we have the adult run-sizes, of what the PS salmon run has been since the 60s. We can easily look at total salmon numbers (and as Amalma notes) and biomass annually since then. We can easily relate this back to the SKKW numbers we have which may not go as far back but go back far enough to have been more abundant.

Having that, we have a target number and biomass of adult salmon to have entering PS to support the whales.

We simply don't want too make the changes necessary to recover SRKWs.

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#1061049 - 11/26/22 07:55 AM Re: Oly. Capital Lake/Dechutes R. Estuary Improvements [Re: Carcassman]
On The Swing Offline
Spawner

Registered: 02/06/03
Posts: 783
Originally Posted By: Carcassman

We simply don't want too make the changes necessary to recover ANYTHING in this state.


Fixed that for ya
_________________________
Fish gills are like diesel engines, don't run them out of fuel!

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#1061050 - 11/26/22 08:06 AM Re: Oly. Capital Lake/Dechutes R. Estuary Improvements [Re: RUNnGUN]
Carcassman Offline
River Nutrients

Registered: 11/21/07
Posts: 7411
Loc: Olema,California,Planet Earth
Quite possibly but we have actually recovered a few species.

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