Upon further reflection, I thought I’d add some more bullshit.
As whites moved into the PNW, they began logging, farming, fishing and mining. As our population grew we displaced the indigenous peoples. The advent of electrical power brought the economics of hydropower. And there were huge native runs of coho, chinook, and sockeye salmon in the Columbia River. The construction of the hydro dams pretty much destroyed those runs. The “mitigation” of those losses by building hatcheries filled with various genetic stocks of salmon began to alter migration patterns. These native runs will likely never ever recover.
On the coast, there were incredible runs of salmon in every river. Some of these rivers produced huge fish with thier run specific genetics and the incredible nutrition available to parr in the close waters of the Pacific. These runs attracted commercial fishing that literally could not miss.
And at the same time, logging was beginning to destroy spawning habitat through siltation and elevated stream temps due to increased sun exposure of stream beds.
More people meant more cars and the natal salmon creeks were further damaged with channelizing and passage barriers.
And then came the invention of monofilament gillnets...
I was able to witness the last vestige of the Quilleyute River king salmon in 1967. I creel checked sportsman with 50 and 60 lb kings (certified weight scales). The Elway kings were caught in excess of 80lbs, or so I was told. Mitigation brought in hatcheries to “f” it up.
Yep, we humans have done ourselves proud, all right.
Just more scientific bullshit from an aging, world experienced former fisheries biologist bullshitter.
You salmonid biologists, please correct my errors in fact. I’m not very happy with own species these days.