Gene expression in natural subyearling fall Chinook salmon in the Snake and Clearwater Rivers

ABSTRACT: We used gene expression accompanied by physical characteristics and gill Na+/K+-ATPase activity to analyze physiological differences associated with two life history variations of juvenile fall Chinook Salmon in the Snake River basin. Subyearlings originating in the Snake River typically migrate seaward as subyearlings, whereas many subyearlings from the Clearwater River delay seaward migration during summer and complete seaward migration the following spring as yearlings. We examined gill Na+/K+-ATPase activity and gene expression of subyearlings at different times during rearing and seaward emigration. Natural-origin Snake River subyearlings rearing under an increasing photoperiod and seasonally increasing temperatures showed a typical increasing pattern of parr to smolt gill Na+/K+-

ORGANISM(S): Oncorhynchus tshawytscha

SUBMITTER: Helena Christiansen 

PROVIDER: E-GEOD-58670 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress