Dataset Identification:
Resource Abstract:
- description: A large-scale lake study on Interior Alaska National Wildlife Refuges (NWR) was undertaken from 1984 1986. Six
NWRs were surveyed (Innoko, Kanuti, Koyukuk, Nowitna, Tetlin, and Yukon Flats) and lake-specific habitat and fish data were
collected from 135 lakes, though a comprehensive report of the findings was never published. This Alaska Fisheries Data Series
Report presents these data, allowing public access to this important information. Lake locations, reference and bathymetric
maps, lake habitat descriptions, and fisheries data are organized and presented. Lowland lakes were most commonly sampled
(74), followed by foothill (31) and oxbow (30) lakes. The highest elevation and deepest sampled lakes were in Tetlin NWR.
The highest water quality measurements (conductivity, total alkalinity, total hardness, and pH) came from Yukon Flats NWR
lakes. Of the 135 lakes sampled, 102 lakes contained fish. A total of 15 fish species were collected throughout the study,
with Tetlin NWR lakes having the highest species diversity (9 species) and Nowitna and Yukon Flats NWRs having the lowest
(6 species). Humpback whitefish Coregonus clupeaformis, least cisco C. sardinella, and northern pike Esox lucius had the widest
distribution, being present in all six refuges. The highest frequencies of fish occurrence were in oxbow and lowland lakes,
lakes with river connections, and lakes with high flood potential. Foothill lakes and lakes without river connections had
the lowest probability of fish capture. Koyukuk NWR had the most sampled lakes containing fish (96%) and Yukon Flats NWR had
the fewest sampled lakes with fish present (49%). Northern pike was the most ubiquitous species, occurring in 90% of all lakes
containing fish. Fish species diversity was highest in lakes with river connections (14 species).; abstract: A large-scale
lake study on Interior Alaska National Wildlife Refuges (NWR) was undertaken from 1984 1986. Six NWRs were surveyed (Innoko,
Kanuti, Koyukuk, Nowitna, Tetlin, and Yukon Flats) and lake-specific habitat and fish data were collected from 135 lakes,
though a comprehensive report of the findings was never published. This Alaska Fisheries Data Series Report presents these
data, allowing public access to this important information. Lake locations, reference and bathymetric maps, lake habitat descriptions,
and fisheries data are organized and presented. Lowland lakes were most commonly sampled (74), followed by foothill (31) and
oxbow (30) lakes. The highest elevation and deepest sampled lakes were in Tetlin NWR. The highest water quality measurements
(conductivity, total alkalinity, total hardness, and pH) came from Yukon Flats NWR lakes. Of the 135 lakes sampled, 102 lakes
contained fish. A total of 15 fish species were collected throughout the study, with Tetlin NWR lakes having the highest species
diversity (9 species) and Nowitna and Yukon Flats NWRs having the lowest (6 species). Humpback whitefish Coregonus clupeaformis,
least cisco C. sardinella, and northern pike Esox lucius had the widest distribution, being present in all six refuges. The
highest frequencies of fish occurrence were in oxbow and lowland lakes, lakes with river connections, and lakes with high
flood potential. Foothill lakes and lakes without river connections had the lowest probability of fish capture. Koyukuk NWR
had the most sampled lakes containing fish (96%) and Yukon Flats NWR had the fewest sampled lakes with fish present (49%).
Northern pike was the most ubiquitous species, occurring in 90% of all lakes containing fish. Fish species diversity was highest
in lakes with river connections (14 species).
Citation
- Title Lake Habitat and Fish Surveys on Interior Alaska National Wildlife Refuges, 1984 1986.
-
- creation Date
2018-05-20T22:42:43.983230
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2018-08-07T01:27:59Z
Resource Maintenance Information
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- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-07T01:27:59Z
Metadata contact
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pointOfContact
- organisation Name
CINERGI Metadata catalog
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- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
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Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:5502d8e6-786f-4e9a-875f-bb50a7d06316
Metadata record format is ISO19139 XML (MD_Metadata)