Buy this book
![Loading indicator](/images/ajax-loader-bar.gif)
In 1996, a mark-recapture investigation was conducted to assess the stock of Arctic grayling Thymallus arcticus in Piledriver Slough, near Fairbanks, Alaska. The timing of the investigation corresponded with an exceptionally late spring breakup. A total of 808 Arctic grayling were captured with backpack electrofishing gear, marked, and released during late-May. During the late-June recapture sampling, 1,009 Arctic grayling were captured using the same methods and examined for marks, yielding 91 recaptures. An estimated 9,981 (SE = 1,256) Arctic grayling > 150 mm FL were present during late June. The 1996 stock was characterized by a high proportion of young Arctic grayling, and the age composition was predominated by age-3 fish. Significantly fewer Arctic grayling 270 mm FL were present in 1996 than at the last assessment in 1994. Densities of Arctic grayling have continued to remain at high levels (722 fish per km), but beaver dams have blocked migrations to headwater areas and reduced the total area of habitat by as much as 60%.
Buy this book
![Loading indicator](/images/ajax-loader-bar.gif)
Subjects
Statistics, Measurement, Fish populations, Arctic grayling, Fish-culturePlaces
Piledriver Slough, AlaskaEdition | Availability |
---|---|
1
Stock assessment of Arctic grayling in Piledriver Slough during 1996
1997, Alaska Dept. of Fish and Game, Division of Sport Fish, Research and Technical Services
in English
|
aaaa
|
Book Details
Edition Notes
"September 1997"
Includes bibliographical references (p. 19-20).
Also issued online.
Classifications
The Physical Object
ID Numbers
Community Reviews (0)
Feedback?January 20, 2010 | Edited by WorkBot | add subjects and covers |
December 11, 2009 | Created by WorkBot | add works page |