Header

Date requested: 3/13/2017 3:59:15 PM

Requester: Tiffani Marsh

Requester email: tiffani.marsh@noaa.gov

Request status: Approved

Action and Files
Target group Site Action Tags for Action Total Tags Released Start Date End date Additional Info
2017 fall chinook adults GRA Collect all 646,018 8/18/2017 11/30/2017
2017 Chin and Sthd for Survival B2J Collect all 60,000 4/16/2017 6/23/2017 Since we will be collecting fish being tagged during the spring, we will need to provide the codes of the fish released to PTAGIS staff on a weekly basis.
Project
Title: Transportation and survival research
Project Lead: Tiffani Marsh
Agency: NMFS
Project Number: USCOE TPE-W-04-1 & TPE-W-00-4; BPA 1993-029-00
Funding Agency: USACE
Project Objectives: The Corps AFEP seasonal effects of transportation study with which I am involved will require the use of the SbyC collection system at Bonneville Dam and at the Lower Granite Dam adult trap in 2017. If you have any questions concerning these projects, contact Tiffani Marsh at (206) 860-3235 or via email Tiffani.Marsh@noaa.gov. The objective of collecting juvenile wild yearling Chinook salmon and wild and hatchery steelhead at Bonneville Dam is to determine the effects of hydropower operations on inriver migrating fish. The objective of recapturing adult fall Chinook salmon at the Lower Granite Dam trap is to determine their age-of-ocean entry, total age, and origin.
Study Description: As in past years, wild yearling Chinook salmon and wild and hatchery steelhead tagged for the BPA-funded reach survival study will be collected at Bonneville Dam for the gathering of length and condition data. We are continuing an intensified appraisal of fish condition at the time of tagging at Lower Granite Dam and need to recapture fish at Bonneville to collect length, weight, and fish condition data. This data will allow us to determine the effects of hydropower operations on inriver migrating fish. We anticipate that less than 600 fish of each group will be collected As we have since 2005, we will recapture returning adult fall Chinook salmon at the Lower Granite Dam trap for the collection of scales. These adults are from juveniles tagged as part of transport evaluations during 2001 to 2012. The PIT tag codes of the returning adults in 2017 will come from a collection of approximately 646,000 PIT tag codes (fish tagged during 2012). The collected scales will provide information on age-of-ocean entry, total age, and origin. All SbyC activities described above have been occurring for several years.
Juvenile
Juvenile Description: The wild spring/summer Chinook salmon and wild and hatchery steelhead being recaptured at Bonneville Dam will be tagged at Lower Granite Dam during the 2017 spring outmigration for the reach survival study. Up to 20,000 of each group will be tagged and released into the dam's tailrace, although we anticipate fewer than 600 fish from each species and rear-type combination will be collected.
Smolt-to-Adult Ratio: SARs are one of the primary objectives of the overall tagging in 2017.
Collection Efficiency:
Adult
Adult Description: As noted in the study description, the adults collected at the Lower Granite Dam adult trap since 2005 were tagged as part of a series (2001-2012) of fall Chinook salmon transport studies. The adult collected in 2017 were tagging during 2012. After the collection of scales, the adults will, depending on broodstock collection protocols, either be released to continue their ascent of the adult ladder, or held for broodstock. This should be the final year of adult collection for our fall Chinook evaluations.
Coordination
Certify: True