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Gone Fishing!

By Gretchen Schenk

During the 2001 field season, the fish crew at Great Basin NP focused on three streams. In the South Fork of Big Wash, we visually monitored Bonneville cutthroat trout that had been placed there in 2000 and found that they appear to have adapted to their new home. In Strawberry Creek, monthly post-chemical treatment monitoring was conducted to determine if enough of the food base has returned so that fish can be reintroduced. The Buglab at Utah State University is identifying the macroinvertebrates and is expected to return results in December.

Our visual estimates indicate that at least 75% of the number and diversity of pre-treatment macroinvertebrates have returned, thus we are anticipating reintroducing Bonneville cutthroat trout there in the summer of 2002. In Snake Creek, pre-treatment monitoring was continued, including intensive surveys for macroinvertebrates, mollusks, water quality and fish. In order to prepare for the Snake Creek treatment in August of 2002, Resource Management staff held an interagency meeting outlining the plan in July. Attendees included personnel from the Nevada Division of Wildlife, Humboldt National Forest, the U.S. Fish and Wildlife Service, Trout Unlimited and the National Park Service. Information was shared about the antibiotic antimycin that will be used for the treatment and concerns were addressed. Meetings for the local community will be held in the spring and summer of 2002.

With the intention of getting some hands on experience with antimycin, Great Basin NP staff spent two weeks in Great Smoky Mountain NP assisting with their stream treatment. We received good news in November. The genetics samples taken from Bonneville cutthroat on Mill, Pine and Ridge Creeks showed that these populations are not hybridized, therefore they can serve as source streams for reintroduction efforts. Additional work this summer included developing a recreational fisheries brochure, improving data collection and data entry, and conducting fire rehabilitation work on the Granite Fire in the South Fork of Big Wash.

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