12/28/09

JACKSON, Wyo. (AP) _ Surveys of watersheds in western Wyoming's
Bridger-Teton National Forest found no new populations of invasive
aquatic species.

Portland State University's Center for Lakes and Reservoirs
surveyed the watersheds over two weeks in July and August.

The technicians were looking for nonnative species such as New
Zealand mud snails, zebra and quagga mussels, Eurasian watermilfoil
and saltcedar. Such species can out-compete native species or clog
waterways.

Jeanette Langston is lead river ranger for Bridger-Teton
National Forest. She says it's important for boaters and anglers to
keep their equipment clean to prevent invasions of nonnative
species.

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Information from: Jackson Hole News And Guide,
http://www.jhnewsandguide.com

(Copyright 2009 by The Associated Press. All Rights Reserved.)
APNP-12-28-09 1543MST<