Estuarine and early-marine survival of transported and in-river migrant Snake River spring Chinook salmon smolts.
Ontology highlight
ABSTRACT:
SUBMITTER: Rechisky EL
PROVIDER: S-EPMC3371587 | biostudies-literature | 2012
REPOSITORIES: biostudies-literature
Publications
Estuarine and early-marine survival of transported and in-river migrant Snake River spring Chinook salmon smolts.
Rechisky Erin L EL Welch David W DW Porter Aswea D AD Jacobs-Scott Melinda C MC Winchell Paul M PM McKern John L JL
Scientific reports 20120611
Many juvenile Snake River Chinook salmon are transported downriver to avoid hydroelectric dams in the Columbia River basin. As mortality to the final dam is ∼50%, transported fish should return as adults at roughly double the rate of nontransported fish; however, the benefit of transportation has not been realized consistently. "Delayed" mortality caused by transportation-induced stress is one hypothesis to explain reduced returns of transported fish. Differential timing of ocean entry is anothe ...[more]
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