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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.
Midden
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