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Title: Assessment of Subyearling Chinook Salmon Survival through the Federal Hydropower Projects in the Main-Stem Columbia River

Abstract

High survival through hydropower projects is an essential element in the recovery of salmonid populations in the Columbia River. It is also a regulatory requirement under the 2008 Federal Columbia River Power System (FCRPS) Biological Opinion (BiOp) established under the Endangered Species Act. It requires dam passage survival to be ≥0.96 and ≥0.93 for spring and summer outmigrating juvenile salmonids, respectively, and estimated with a standard error ≤ 0.015. An innovative virtual/paired-release design was used to estimate dam passage survival, defined as survival from the face of a dam to the tailrace mixing zone. A coordinated four-dam study was conducted during the 2012 summer outmigration using 14,026 run-of-river subyearling Chinook salmon surgically implanted with acoustic micro-transmitter (AMT) tags released at 9 different locations, and monitored on 14 different detection arrays. Each of the four estimates of dam passage survival exceeded BiOp requirements with values ranging from 0.9414 to 0.9747 and standard errors, 0.0031 to 0.0114. Two consecutive years of survival estimates must meet BiOp standards in order for a hydropower project to be in compliance with recovery requirements for a fish stock.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1171303
Report Number(s):
PNNL-SA-100146
400403209
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
North American Journal of Fisheries Management, 34(4):741-752
Additional Journal Information:
Journal Name: North American Journal of Fisheries Management, 34(4):741-752
Country of Publication:
United States
Language:
English

Citation Formats

Skalski, J. R., Eppard, M. B., Ploskey, Gene R., Weiland, Mark A., Carlson, Thomas J., and Townsend, Richard L. Assessment of Subyearling Chinook Salmon Survival through the Federal Hydropower Projects in the Main-Stem Columbia River. United States: N. p., 2014. Web. doi:10.1080/02755947.2014.910577.
Skalski, J. R., Eppard, M. B., Ploskey, Gene R., Weiland, Mark A., Carlson, Thomas J., & Townsend, Richard L. Assessment of Subyearling Chinook Salmon Survival through the Federal Hydropower Projects in the Main-Stem Columbia River. United States. https://doi.org/10.1080/02755947.2014.910577
Skalski, J. R., Eppard, M. B., Ploskey, Gene R., Weiland, Mark A., Carlson, Thomas J., and Townsend, Richard L. 2014. "Assessment of Subyearling Chinook Salmon Survival through the Federal Hydropower Projects in the Main-Stem Columbia River". United States. https://doi.org/10.1080/02755947.2014.910577.
@article{osti_1171303,
title = {Assessment of Subyearling Chinook Salmon Survival through the Federal Hydropower Projects in the Main-Stem Columbia River},
author = {Skalski, J. R. and Eppard, M. B. and Ploskey, Gene R. and Weiland, Mark A. and Carlson, Thomas J. and Townsend, Richard L.},
abstractNote = {High survival through hydropower projects is an essential element in the recovery of salmonid populations in the Columbia River. It is also a regulatory requirement under the 2008 Federal Columbia River Power System (FCRPS) Biological Opinion (BiOp) established under the Endangered Species Act. It requires dam passage survival to be ≥0.96 and ≥0.93 for spring and summer outmigrating juvenile salmonids, respectively, and estimated with a standard error ≤ 0.015. An innovative virtual/paired-release design was used to estimate dam passage survival, defined as survival from the face of a dam to the tailrace mixing zone. A coordinated four-dam study was conducted during the 2012 summer outmigration using 14,026 run-of-river subyearling Chinook salmon surgically implanted with acoustic micro-transmitter (AMT) tags released at 9 different locations, and monitored on 14 different detection arrays. Each of the four estimates of dam passage survival exceeded BiOp requirements with values ranging from 0.9414 to 0.9747 and standard errors, 0.0031 to 0.0114. Two consecutive years of survival estimates must meet BiOp standards in order for a hydropower project to be in compliance with recovery requirements for a fish stock.},
doi = {10.1080/02755947.2014.910577},
url = {https://www.osti.gov/biblio/1171303}, journal = {North American Journal of Fisheries Management, 34(4):741-752},
number = ,
volume = ,
place = {United States},
year = {Fri Jul 11 00:00:00 EDT 2014},
month = {Fri Jul 11 00:00:00 EDT 2014}
}