Does anyone really care?” editorialized Feather Publishing in its six newspapers. “If the yellow-legged frog disappears, would anyone notice? Seriously.
Rotenone only affects gill tissue.īut as early as 2008, numerous anglers, media and local politicians were throwing hissy fits about an effort to protect mountain yellow-legged frogs merely by suspending trout stocking in 175 waters within national forests.
For centuries, Indigenous peoples have used high concentrations to kill fish for consumption. In modern fisheries management, rotenone has never been seen to permanently affect a native ecosystem except to restore it. But in 33 lakes, the only option was rotenone, a short-lived, organic fish poison derived from plant roots and applied at 100 parts per billion. The agency plan called for eradicating trout in 110 lakes, though trout would remain in 465 park lakes and hundreds of stream miles, leaving plenty of fishing opportunities. Fish and Wildlife Service listed both groups of frogs as endangered, prompting aggressive action by Sequoia and Kings Canyon National Parks. Gorging on zooplankton, insects, and two kinds of mountain yellow-legged frogs, the alien invaders unraveled aquatic and terrestrial ecosystems, often in designated wilderness. Some of the fish hit rocks and ice, but most hit water. Shortly after World War II, California fish managers had a brainstorm: They loaded juvenile trout into airplanes and saturation-bombed naturally fishless lakes in the High Sierra Mountains of California. Digital Replica Edition Home Page Close Menu
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