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Filtering by: Subject Steelhead (Fish) -- Oregon -- Clackamas River Subject Steelhead (Fish) -- Migration -- Oregon -- John Day River

Description and prediction of broad-scale spatial variability in expression of anadromy in female Oncorhynchus mykiss in the John Day River, Oregon, USA

Creator:

Mills, Justin S.

Abstract:

Partial migration is a common migratory behavior where some individuals in a population migrate and others do not. Patterns of partial migration can vary dramatically, especially for species that inhabit a wide range of environments. I described and predicted spatial variation in marine migration (anadromy) of female Oncorhynchus mykiss (steelhead...

Resource Type:

Masters Thesis

Full Text:

Female Oncorhynchus mykiss in the John Day River, Oregon, USA Abstract approved
The influence of sex, migration distance, and latitude on expression of anadromy in Oncorhynchus mykiss

Creator:

Ohms, Haley

Abstract:

The evolution and maintenance of multiple phenotypes within populations is an interesting evolutionary and ecological question, and is becoming increasingly important for the restoration and conservation of partially migratory species. In particular, why individuals adopt a particular phenotype has been the focus of numerous research efforts. In the partially migratory...

Resource Type:

Masters Thesis

Full Text:

resident rainbow trout and juvenile steelhead from the South Fork John Day River, eastern Oregon, from