A mark-recapture experiment to estimate the escapement of coho salmon in Steep Creek, 1994
By: by Scott A. McPherson, Brian J. Glynn and Edgar L. Jones III.
Contributors: Glynn, Brian J.; Jones, Edgar L., III.; Alaska. Division of Sport Fish.
Series: Fishery data series -- no. 96-31.
Publisher: Alaska Dept. of Fish and Game, Division of Sport Fish
Published: 1996
Place of publication: Anchorage, Alaska
Language: eng
Number of pages: 20
Subjects: Fish tagging -- Study and teaching.; Fish populations -- Alaska -- Steep Creek -- Measurement.; Coho salmon -- Alaska -- Steep Creek -- Statistics.
Description: A mark-recapture experiment was used to estimate total escapement of coho salmon Oncorhynchus kisutch returning to Steep Creek, a tributary of Mendenhall Lake located in the upper Mendenhall River drainage near Juneau, Alaska. Two hundred sixty-two coho salmon were captured in beach seines between 29 September and 21 October. All were marked with uniquely numbered anchor tags and given a secondary mark consisting of an upper opercle punch. Between 7 October and 10 November, 416 fish on the spawning grounds were inspected for marks and 118 (28%) were marked. A Darroch model was used to estimate a total escapement of 952 (SE = 68) coho salmon. As part of regular escapement monitoring activities, five foot surveys were conducted between 23 September and 3 November to count the number of coho salmon observed in a single day at Steep Creek. The peak observer count was 200 (14 October), representing 21% of the total escapement.
Notes: "October 1996"

"Literature cited": p. 11-12.

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