Header

Date requested: 2/26/2018 9:35:07 AM

Requester: Gordon Axel

Requester email: Gordon.Axel@noaa.gov

Request status: Approved

Action and Files
Target group Site Action Tags for Action Total Tags Released Start Date End date Additional Info
All Coordinator "GAA" fish with MY "16" GRJ Collect all 9,999 4/1/2018 6/30/2018
Bear Valley GRJ Collect quota 1,000 4/1/2018 6/30/2018
Elk Creek GRJ Collect quota 999 4/1/2018 6/30/2018
Loon Creek GRJ Collect quota 304 4/1/2018 6/30/2018
Herd Creek GRJ Collect quota 946 4/1/2018 6/30/2018
Valley Creek GRJ Collect quota 1,406 4/1/2018 6/30/2018
Secesh River GRJ Collect quota 1,000 4/1/2018 6/30/2018
Lake Creek GRJ Collect quota 652 4/1/2018 6/30/2018
South Fork Salmon River GRJ Collect quota 1,000 4/1/2018 6/30/2018
Upper Big Creek GRJ Collect quota 1,057 4/1/2018 6/30/2018
Lower Big Creek GRJ Collect quota 1,021 4/1/2018 6/30/2018
Cape Horn Creek GRJ Collect quota 732 4/1/2018 6/30/2018
Marsh Creek GRJ Collect quota 1,000 4/1/2018 6/30/2018
Project
Title: Migration timing and parr-to-smolt estimated survival for wild Snake River spring/summer Chinook salmon smolts
Project Lead: Gordon Axel
Agency: NMFS
Project Number: 1991-028-00 (CR-303265)
Funding Agency: BPA
Project Objectives: We intend to utilize the separation-by-code system at the Lower Granite Dam Fish Facility to separate PIT-tagged wild smolts for length and weight measurements. We will provide the PIT Tag Operations Center with the appropriate PIT-tag codes and actions for this study. These actions require 100 maximum diversions, with no more than 15 per day, for fish from 16 streams or defined sites where we have PIT-tagged wild fish that will migrate in 2018 (with coordinator "GAA"). In addition, we plan to obtain measurements on any age-2 wild smolts with migration year 2017. To accomplish this, we require separation of all wild fish with coordinator "GAA" and migration year “2017”. Operation of the separation-by-code system is needed from about 1 April 2018 through approximately 30 June 2018, depending on the numbers of fish diverted. In addition, no more than 15 diversions from each stream or defined site may occur in a day.
Study Description: The National Marine Fisheries Service (NMFS) has been studying the migrational timing of wild Snake River spring/summer Chinook salmon smolts since the late 1980s. During this study, an important question has emerged regarding wild fish growth and how it relates to parr-to-smolt survival, natal stream productivity, and other aspects related to the fry-parr-smolt life stages. To address this question during the 2018 smolt migration, we intend to utilize the separation-by-code system at the Lower Granite Dam Fish Facility to separate PIT-tagged wild smolts for length and weight measurements. This will be the 6th year for these separation activities at this dam and the 17th overall year. This work will continue to provide important baseline information to help protect these listed stocks.
Juvenile
Juvenile Description: We plan to mark a maximum of 39,000 wild spring/summer Chinook salmon parr annually in selected streams in Idaho during summers of 1991-2018. Depending upon parr densities in natal rearing areas and State collection permit restrictions, we will attempt to mark a maximum of 3,000 parr annually in each stream/site combination. Assuming a detection rate range between 2.0 and 20.0%, we would detect between 60 and 600 of these fish from each stream at Lower Granite Dam. Once fish are tagged and recovered from anesthetic they are released back into their natal stream.
Smolt-to-Adult Ratio: Not at this time.
Collection Efficiency: No, only collecting growth data for those fish collected in the SbyC system at Lower Granite.
Adult
Adult Description:
Coordination
Certify: True