View Related Episode: Elk Babies, Quagga Mussels, Paulina Lake Lodge

In January 2007, tiny quagga mussels from Europe invaded Lake Mead, Nevada. Within months, they began fouling boat engines, docks, and the water intakes of Hoover Dam. Now quaggas are spreading across the west and Oregon is bracing for a costly invasion that threatens everything from hydropower to salmon recovery. Learn more about the threat posed by this invasive species and the prevention efforts underway to stop their spread to Oregon.

First Broadcast: 2007
Producer: Ed Jahn

Appeared in episode: Elk Babies, Quagga Mussels, Paulina Lake Lodge

Video Extra:

Oregon Clean Marina Program

100th Meridian Initiative

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Field Journal Blog
Bald Eagle Recovery Changes Nature’s Balance
by Vince Patton | 02/04/2010
Bald eagles are back.  They’ve been removed from the endangered species list since June, 2007.  From just 417 nesting pairs in 1963 to  9,789 breeding pairs now, eagles have recovered well in the lower 48 states. More eagles need more food.  Naturally, they eat other animals.  In Oregon, coastal eagles are having a profound impact on [...]
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