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Abstract: |
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Rapid physical and biological change in Glacier Bay’s Dry Bay
Preserve is likely affecting East Alsek River sockeye salmon productivity and returns.
The National Park Service (NPS) seeks to understand the cause of these declines to
consider, develop and implement management prescriptions if necessary. This project
would forge a partnership between the University of Alaska, School of Fisheries
(UAF SOF) and the NPS. There is physical and biological data available on the changes
hypothesized to be contributing to declining sockeye salmon. This existing data will
be obtained, analyzed, and evaluated to examine these hypotheses. Existing physical
and biological information consists of georeferenced aerial photography, fisheries
data, uplift rates, seismic activity, Alsek River outburst flooding events and
stage-discharge data for the Tatsheshini/Alsek River and similar sized coastal
streams. Existing information will be collected, analyzed and evaluated to assess
declining salmonid productivity in the East Alsek River. |
