NATURE

surprise_salmon

SALMON: RUNNING THE GAUNTLET

WEDNESDAY, JULY 2 @ 10:00PM

The Columbia River Basin once teemed with young salmon heading toward the ocean and mature salmon returning to their home rivers and streams to spawn. Now, many salmon species of the Pacific Northwest are extinct, and thirteen, including the iconic sockeye salmon, are currently endangered. When European Americans arrived in the area 150 years ago, the subsequent growth and change in population severely affected the ecosystems. Overfishing, habitat destruction, and dam construction contributed to salmon’s decline, which led, in the late-nineteenth century, to a new government-sanctioned industry created to restore dwindling salmon populations: hatcheries. Today, salmon hatcheries provide controlled environments where early developmental stages of the salmon lifecycle are replicated within the confines of concrete walls; eggs are artificially fertilized and incubated in tubes and plastic bags, and young salmon are raised in tanks before being released into the wild.


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