Currently viewing the tag: "fish hatcheries"

Just one generation in a salmon hatchery ruin salmon for thriving in the wild

On January 10, 2012 By

Most people know the inspiring story of the salmon. Hatched in the gravel of a rushing mountain stream, the smolts are pulled by the waters downstream past logjams, lethal crevices in the rock, and sometimes into side pools from which there is no escape.

Mile-after-mile, sometimes many hundreds of miles, the river grows but nowadays […]

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Federal biologists say that cutting hatchery production could help protect wild salmon

On August 9, 2010 By

It is an argument for removing dams as well.

For many years biologists have known that hatchery fish effect the fitness of wild fish through competition and interbreeding. Hatchery fish don’t have the selective pressures that wild fish do so are less fit to survive in the wild. Because of this, when hatchery fish breed […]

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Anandromous fish from hatcheries have poor survival rates.

On October 5, 2007 By

“Steelhead turned out by hatcheries quickly evolve into a kind of swimming livestock with a poor chance of surviving in the wild and may carry their inferior traits into wild populations that biologists are trying to save, a new study of fish in Oregon’s Hood River has found.”

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Quote

‎"At some point we must draw a line across the ground of our home and our being, drive a spear into the land and say to the bulldozers, earthmovers, government and corporations, “thus far and no further.” If we do not, we shall later feel, instead of pride, the regret of Thoreau, that good but overly-bookish man, who wrote, near the end of his life, “If I repent of anything it is likely to be my good behaviour."

~ Edward Abbey