Trout Versus Frogs In California Parks
There are high mountain lakes in Sequoia and Kings Canyon National Parks that are naturally free of fish and home to yellow-legged frogs. Non-native trout, introduced into the lakes, are now threatening the survival of the frogs, and the question for the National Park Service is what to do about it.
There are 560 lakes and ponds within the parks that contain introduced trout, and removal of these non-native species from up to 15 percent of these sites will be considered. Up to 82 lakes and 56 miles of streams are being considered for trout removal.
In its scoping document, the Park Service says the trout removal project “is needed to preserve and restore aquatic ecosystems and populations of native species, including mountain yellow-legged frogs in high elevation lakes and streams, creating new opportunities for visitors to experience native wildlife yet also maintaining recreational fishing opportunities.”
A preliminary project to eradicate trout from 11 lakes in the two parks since 2001 has allowed the recovery of yellow-legged frogs at these lakes. Now Park Service officials want to broaden the campaign to restore the frogs throughout the two parks - while leaving the fish in many lakes that are popular with anglers.
So the controversy is which lakes to remove the trout from, and how to go about doing it. For more information, and the opportunity to comment if you are so inclined, go to Save The Frogs!
Posted on 20th November 2009
Under: conservation, endangered species, national parks | No Comments »

