Abundance and composition of the northern pike population in Harding Lake, 1995
By: by Stafford M. Roach.
Contributors: Alaska. Division of Sport Fish.
Series: Fishery data series -- no. 96-8.
Publisher: Alaska Dept. of Fish and Game, Division of Sport Fish
Published: 1996
Place of publication: Anchorage, Alaska
Language: eng
Number of pages: 31
Subjects: Pike -- Alaska -- Harding Lake.; Fish populations -- Alaska -- Harding Lake.
Other titles: Federal aid in sport fish restoration (Alaska)
Description: Abundance and composition of the northern pike Esox lucius population within Harding Lake in early June 1995 was described using mark-recapture techniques. Future strength of the population was discussed in view of year-class strength, percent harvest, estimated maximum sustainable yield, and past history of the fishery. Since 1991 estimated abundances of northern pike 300 mm FL have ranged from 2,308 fish (SE = 563) in 1991 to 3,768 fish (SE = 432) in 1993. In 1995, estimated abundance of northern pike 300 mm FL was 2,338 fish (SE = 411 and CV = 24%) and for northern pike 450 mm FL was 1,554 fish (SE = 170 and CV = 11%). Estimated density of northern pike 300 mm FL was 2.3 (SE = 0.04) fish per hectare. The estimated abundances of northern pike were 543 fish (SE = 95) from 300 to 449 mm FL; 1,333 fish (SE = 234) from 450 to 624 mm FL; and, 464 fish (SE = 82) 625 mm FL. The estimated proportion of northern pike from 300 to 449 mm FL was 0.23 (SE = 0.04); from 450 to 624 mm FL was 0.57 (SE = 0.07); and, 625 mm FL was 0.20 (SE = 0.01). The estimated abundances of northern pike 300 mm FL were 631 fish (SE = 111) age-5 and 1,707 fish (SE = 300) age-5. The estimated proportions of northern pike 300 mm FL were 0.27 (SE = 0.02) for fish age-5, and 0.73 (SE = 0.02) for fish age-5.
Notes: "Partially financed by the Federal Aid in Sport Fish Restoration Act ... under Project F-10-6, Job No. R-3-4(c)."

"April 1996"

Includes bibliographical references (p. 24-25).

Also issued online.