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Arctic Grayling within the drainage
system of the Williston Reservoir
have a restricted distribution above
the W.A.C. Bennett Dam on the
Peace River. Populations within the
Williston Reservoir and its tributaries
have been isolated from the
remainder of the Peace system
since at least 1963, when preparations
to construct the dam commenced.
In 1972, the reservoir
achieved full pool. Both the reservoir
and stream populations
remained reasonably abundant
and widespread until about 1982,
when grayling in all small and
medium-sized streams flowing
directly into the reservoir rapidly
disappeared. By 1988, only populations
native to the largest river
systems survived.
Lashmar, Murray, Ptolemy, Juanita. 1111. Arctic Grayling (Wildlife at Risk). Ministry of Water, Land and Air Protection. Species at Risk Brochure
Topic: Species and Ecosystems at Risk
Keywords: species at risk, sara, williston reservoir, williston reservoir, population, endangered, threatened
ISSN:
Scientific Name: Thymallus arcticus
ISBN: 0-7726-7705-0
English Name: Arctic Grayling
Other Identifier:
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