Publication: Estimating the daily passage of juvenile salmonids at McNary Dam on the Columbia River
dc.contributor.author | Giorgi, A E | |
dc.contributor.author | Sims, C W | |
dc.date | 2023-09-23T05:04:49.000 | |
dc.date.accessioned | 2024-04-26T17:20:40Z | |
dc.date.available | 2024-04-26T17:20:40Z | |
dc.date.issued | 1987 | |
dc.description.abstract | The U.S. National Marine Fisheries Service, under contract to the U.S. Army Corps of Engineers, monitored the seaward migration of juvenile salmonids through the Snake-Columbia river system from 1973 to 1983. We developed a procedure for estimating the numbers of steelhead Salmo gairdneri and yearling chinook salmon Oncorhynchus tshawytscha smolts passing McNary Dam each day in 1982-1983. The method utilized the fingerling collection and bypass system contained within the powerhouse. Freeze-branded groups of smolts released upstream from the dam were used to calibrate the efficiency with which migrants were collected over a range of powerhouse discharge levels. Application of collection efficiency calibration curves enables researchers and fisheries managers to generate daily estimates of smolt passage as a function of the amount of water discharged through the powerhouse and the number of fish collected in the bypass system. | |
dc.description.pages | 215-222 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14394/27308 | |
dc.relation.ispartof | North American Journal of Fisheries Management | |
dc.source.issue | 7 | |
dc.source.status | published | |
dc.subject | juvenile | |
dc.subject | salmonids | |
dc.subject | McNary Dam | |
dc.subject | Columbia River | |
dc.subject | Army Corps of Engineers | |
dc.subject | seaward migration | |
dc.subject | migration | |
dc.subject | steelhead | |
dc.subject | chinook | |
dc.subject | salmon | |
dc.subject | Oncorhynchus tshawytscha | |
dc.subject | smolt | |
dc.subject | bypass | |
dc.subject | upstream | |
dc.subject | efficiency | |
dc.subject | smolt passage | |
dc.title | Estimating the daily passage of juvenile salmonids at McNary Dam on the Columbia River | |
dc.type | article | |
dc.type | article | |
digcom.contributor.author | Giorgi, A E | |
digcom.contributor.author | Sims, C W | |
digcom.identifier | fishpassage_journal_articles/214 | |
digcom.identifier.contextkey | 2446149 | |
digcom.identifier.submissionpath | fishpassage_journal_articles/214 | |
dspace.entity.type | Publication |