Skip to main content

Growth, foraging behavior and distribution of age-0 Arctic grayling in an Alaskan stream

Dates

Year
2002

Citation

Dion, C. A., 2002, Growth, foraging behavior and distribution of age-0 Arctic grayling in an Alaskan stream: University of Alaska Fairbanks.

Summary

I evaluated the ability of three models to relate habitat characteristics to habitat quality for age-0 Arctic grayling Thymallullus arcticus in an Alaska stream. A temperature-based growth model made accurate predictions, showing it can reliably assess thermal habitat quality. Deviations between predicted and observed growth were useful because they identified the timing of possible critical periods, when competition for food or space may cause density-dependent mortality and emigration. A foraging model consistently overestimated the mean prey size of fish, showing that such models need further work before then can accurately assess food availability from invertebrate drift. A habitat selection model accurately predicted small fish [...]

Contacts

Attached Files

Communities

  • LC MAP - Landscape Conservation Management and Analysis Portal
  • Northwest Boreal Landscape Conservation Cooperative

Tags

Provenance

Data source
File Processing
File Process
Type
End Note
Reference Item
NWBLCC20160627

Additional Information

Citation Extension

citationTypeThesis
parts
typeNotes
value6673

Item Actions

View Item as ...

Save Item as ...

View Item...