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File Size: 280 KB

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Research, monitoring, and evaluation of emerging issues and measures to recover the Snake River fall Chinook salmon ESU


Data Categories Food habits/diet, Predation
Dates of Data 2016 TO 2016
Data Set Status Complete
Data Set Update Schedule This data set is complete but more work will be done on this project in the future.
Date Data Set Published on StreamNet Data Store 07-20-2017
Project Name & Number 1991-029-00
Purpose of Data Set Staff of the U. S. Fish and Wildlife Service and U. S. Geological Survey has responded to emerging issues relative to the recovery of Snake River fall Chinook salmon through project 199102900 for 15 years. We propose to help managers increase fall Chinook salmon production in the free-flowing Snake River by using existing and newly collected field data to answer five critical questions: (1) is the progression of life history events changing over time; (2) is growth during rearing and seaward movement changing over time; (3) could survival to the tailrace of Lower Granite Dam be increased; (4) could interactions between wild and hatchery smolts be reduced; and (5) does summer spill benefit fall Chinook salmon migrants? We answer these questions by accomplishing the following five objectives: (1) increasing the effectiveness of hydrosystem operations; (2) maximizing growth of wild fall Chinook salmon; (3) increasing the survival of wild fall Chinook salmon subyearlings; (4) reducing the potential for wild-hatchery fish interaction; and, (5) increasing the understanding of the efficacy of spill. To accomplish our objectives, we will PIT tag wild subyearlings and analyze subsequent detection data to estimate survival, growth, describe run timing and life history attributes, and evaluate the effectiveness of summer spill. We will explore the roles of food availability, growth, and habitat rearing capacity as potential limiting factors to Snake River fall Chinook salmon.
Summary / Abstract This data contains catch, diet, and consumption data on smallmouth bass collected in Hells Canyon on the Snake River to evaluate predation on juvenile fall chinook salmon before and after hatchery releases in 2016.
Broad Biological Groups Fishes
Taxa Chinook salmon Oncorhynchus tshawytscha (Walbaum, 1792)
Sand roller Percopsis transmontana (Eigenmann and Eigenmann, 1892)
Sculpin Cottidae
Smallmouth bass Micropterus dolomieu Lacepède, 1802
Location Hells Canyon on the Snake River
NPCC Subbasins (2001 Subbasins) Basinwide
Hatcheries Irrigon Hatchery: source of fish released at Hells Canyon Dam
Nez Perce Tribal Hatchery: source of fish released at Pittsburg Landing and Captain John Rapids acclimation facilities.
Dams
Keywords Predation, smallmouth bass, fall chinook salmon, Hells Canyon, hatchery release, consumption, diet
Lead Person and Organization That Created the Data Set US Geological Survey (USGS)
Other Participating Organizations Funding provided by Bonneville Power Administration
Contact Person for Questions About the Data Name:  Ken Tiffan
Position:  
Organization:  U.S. Geological Survey
Address:  5501A Cook-Underwood Rd.
Cook, WA  98605
USA
Phone:  509-538-2972
email:  ktiffan@usgs.gov
Broad Category of Methods Field and Lab
Data Collection Methods Angling, electrofishing
File Formats Microsoft Excel 2000 or later.
Data structure description This data set contains three sheets in an Excel file. The "Read Me" sheet explains the meaning of all columns and data in the other two sheets and how the data are linked. Reading this sheet is imperative to understand the data.
URL where updated data may be available
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Papers, reports, and presentations that were done under this project. 44. W.P. Connor and K.F. Tiffan. 2017. Research, monitoring, and evaluation of emerging issues and measures to recover the Snake River fall Chinook salmon ESU. 2016 Annual Report to the Bonneville Power Administration, Project 199102900, Portland, Oregon.
Restrictions or legal prerequisites for accessing and using this data set. No

File Size: 280 KB