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Redband trout's decline under study http://apocadocs.com/s.pl?1224625859
The redband index - like the Dow Jones - is headed south. On one stretch of the upper Spokane, redband counts dropped 75 percent between 1980 and last year. Though downstream counts are higher, redband populations aren't healthy in any part of the river, Donley said. The declines have occurred despite two decades of catch-and-release regulations for anglers.... But hydropower dams altered the river's flows, while withdrawals sucked water out of the river. Gravel spawning beds, where redbands lay their eggs, dry out too soon, killing the young fry.
Pollutants also hurt the trout. More than other fish in the Spokane system, redbands need cold, clean water for survival.
"They're the canary in the coal mine," Donley said. "We use them as an environmental indicator."
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[Read more stories about:
canary in coal mine, anthropogenic change, ecosystem interrelationships]
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Scott says: "a blue flag for a red band"
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The ApocaDocs say:
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Another freakin' canary in that overpopulated mine.
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