Originally Posted By: stlhdr1
Originally Posted By: freespool
A fishing pole makes you a expert fisherman, it doesn't make you a fisheries expert.
To learn about fisheries science you need to read a lot of research, it doesn't have anything to do with how long you have been an angler.
Fish genetics are not like any mammals, when wild and hatchery breed, virtually nothing returns, and if any do return, few if any of their offspring return.
Hatchery genes don't survive in the wild, so it's not a watered down gene pool that's the problem, but all those black holes created in the spawning beds.


Keep telling yourself that, sooner than later you'll believe it....

I took your advice and did some reading, used the Cowlitz river as an example....

Historically, hatchery broodstock have been mostly native Cowlitz fall Chinook. However, four non-native plants of juvenile Chinook occurred between 1951 and 1981, including Toutle, Kalama, Big Creek, and Bonneville stocks. Broodstock is collected from volitional returns to the Cowlitz Salmon Hatchery. This is an integrated harvest program, and some natural-origin fish may be inadvertently collected for broodstock, but the level is unknown since the marking/tagging level of the hatchery release does not allow the identification of natural-origin fish. Incubation and rearing occurs on-station at the Cowlitz Salmon Hatchery.

Inbred? Hmmm, help me understand.... Seeing how it's been of recent years that they're getting around to clipping 100% of hatchery fall king releases, how do you really know?

Stock status was rated Depressed in 2002, because of chronically low escapements. Natural spawning abundance is more a reflection of the size of returns to the Cowlitz Salmon Hatchery and stray rates than of natural production.

No genetic analysis has been done on naturally-spawning Cowlitz fall Chinook. Allozyme analysis of Cowlitz Hatchery fall Chinook sampled in 1981, 1982 and 1988 showed that they were similar to, but distinct from, Kalama hatchery fall Chinook and distinct from all other Washington Chinook examined (WDF and WDW 1993, SaSSi 2002).

How do you really know?

Keith thumbs


FREETOOL,

Where'd you go? You gonna help me understand this?

In all do respect, thanks for the compliment of a decent fisherman.... But in reality, you need to dig a little deeper to understand................ Hello????

Keith
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It's time to put the red rubber nose away, clown seasons over.