Author: Stephen Thaddeus GrabackiPublisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 226
Book Description
Effects of Exploitation on the Population Dynamics of Arctic Grayling in the Chena River, Alaska
Author: Stephen Thaddeus GrabackiPublisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 226
Book Description
U.S. Geological Survey Professional Paper
Author: Sport Fishery Abstracts
Author: Fisheries Review
Author: Evaluation of the Reintroduction of the Arctic Grayling, Into Michigan Lakes and Streams
Author: Andrew J. NuhferPublisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 50
Book Description
Population Dynamics of Arctic Grayling in the Upper Susitna Basin
Author: Dana C. SchmidtPublisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 23
Book Description
Presents population dynamics model to determine effects of catch and release management strategies in anticipation of a sport fishery of arctic grayling. Improved access to such a fishery in the upper Susitna River basin would be associated with the hydroelectric project. Sampling sites were located along tributaries (mostly at areas of confluence) of the Susitna River above the Devil Canyon dam site.
Biological Papers of the University of Alaska
Author: Research Advances on Anadromous Fish in Arctic Alaska and Canada
Author: Robert H. ArmstrongPublisher:
ISBN:
Category : Aeronautics in wildlife management
Languages : en
Pages : 434
Book Description
Environmental and Evolutionary Processes Affecting Population Dynamics and Life-history of Arctic Grayling in Western and Interior Alaska
Author: Jenny Lou NeymePublisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 122
Book Description
"I compared the life-history and population dynamics of arctic grayling Thymallus arcticus in western and Interior Alaska. Fish in western Alaska grew rapidly to a large maximum size, adult mortality rates were low and juvenile mortality rates were high. As a result, western populations consisted mainly of larger, older fish. Fish in Interior streams grew more slowly to a smaller maximum size, adult mortality rates were higher and juvenile mortality rates lower than in western streams. As a result, Interior populations consisted mainly of smaller, younger fish. The relationship between body size and ovary mass was similar between regions, but Interior fish allocated a greater proportion of their annual energy budget to reproduction. I also used a foraging model to test the hypothesis that regional differences in drift-feeding opportunities were responsible for faster growth and larger size in arctic grayling in western Alaska and to determine the relative contribution of invertebrate drift density and physical habitat characteristics to regional differences in profitability. The model predicted that drift-feeding would be more profitable in western Alaska and that regional differences in invertebrate drift density and size composition were responsible for this difference"--Leaf iii.
Author: