Abundance of Dolly Varden overwintering in the Wulik River, northwestern Alaska, during 1994/1995
By: by Alfred L. DeCicco.
Contributors: Alaska. Division of Sport Fish. Statewide Research and Technical Services Unit.
Series: Fishery data series -- no. 96-3.
Publisher: Alaska Dept. of Fish and Game, Division of Sport Fish, Research and Technical Services Unit
Published: 1996
Place of publication: Anchorage, Alaska
Language: eng
Number of pages: 24
Subjects: Dolly Varden (Trout) -- Alaska -- Wulik River -- Statistics.; Fishery resources -- Alaska -- Wulik River -- Statistics.; Fish populations -- Alaska -- Wulik River -- Measurement.
Description: The status of the Dolly Varden Salvelinus malma population overwintering in the Wulik River drainage of northwestern Alaska was investigated during 1994-1995. Population abundance, and length composition were estimated. The number of Dolly Varden over 399 mm in FL overwintering in the Wulik River during the winter of 1994 - 1995 was estimated at 361,599 fish (SE = 62,306). Two aerial surveys conducted during the last week of September 1994 counted 66,937 fish and 65,100 fish respectively. It was assumed that the late migration of Dolly Varden into the Wulik River in 1994 accounted for much of this difference. Dolly Varden ranged in fork length from 250 to 826 mm with the majority (79%) between 400 mm and 500 mm FL. Scars from attempted predation by marine mammals were noted on 887 (20.7%) of fish inspected.
Notes: "March 1996"

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