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Otolith output - Project to study alternative life history types of fall Chinook based on otoliths
This project describes ongoing work by scientists in FE Ecosystem Analysis and EFS Environmental Chemistry programs to identify natal and rearing locations, reconstruct life history strategy, and evaluate juvenile performance of adult Snake River fall Chinook salmon. Due to dramatic declines in its abundance, Snake River fall Chinook salmon was listed as threatened under the Endangered Species Act. Management of Snake River fall Chinook salmon has been hindered by a great deal of uncertainty regarding key aspects of the population. In particular, the existence of an overwintering behavior in a portion of the population has complicated estimates of survival through the hydropower system. Further, differential detectability of redds has limited the ability to accurately develop run reconstructions. Effective management of Snake River fall Chinook salmon will require an understanding of the details of their early life-history, including where juveniles hatch and rear, the proportion of juveniles that exhibit the yearling strategy, when they initiate downstream migration, and estuarine residence time. In this project we investigate early life history movement and performance of Snake River fall Chinook salmon by using microchemistry and microstructure of otoliths sampled from juveniles and adults. Results from this study are intended to help inform recovery planning including future habitat restoration and conservation efforts in the Snake River Basin and Columbia River.
Images, increment measurements, and microchemistry trajectories.
Resources
4 resources available
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Sampled Fish Snake River Chinook
TEXT/HTML -
Sampled Fish Snake River Chinook (RESTful)
TEXT/HTML -
GCMD Keyword Forum Page
TEXT/HTML -
Full Metadata Record
TEXT/HTML
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{ "fn": "Chittaro, Paul", "@type": "vcard:Contact", "hasEmail": "mailto:paul.chittaro@noaa.gov" } |
| describedByType | application/octet-steam |
| description | This project describes ongoing work by scientists in FE Ecosystem Analysis and EFS Environmental Chemistry programs to identify natal and rearing locations, reconstruct life history strategy, and evaluate juvenile performance of adult Snake River fall Chinook salmon. Due to dramatic declines in its abundance, Snake River fall Chinook salmon was listed as threatened under the Endangered Species Act. Management of Snake River fall Chinook salmon has been hindered by a great deal of uncertainty regarding key aspects of the population. In particular, the existence of an overwintering behavior in a portion of the population has complicated estimates of survival through the hydropower system. Further, differential detectability of redds has limited the ability to accurately develop run reconstructions. Effective management of Snake River fall Chinook salmon will require an understanding of the details of their early life-history, including where juveniles hatch and rear, the proportion of juveniles that exhibit the yearling strategy, when they initiate downstream migration, and estuarine residence time. In this project we investigate early life history movement and performance of Snake River fall Chinook salmon by using microchemistry and microstructure of otoliths sampled from juveniles and adults. Results from this study are intended to help inform recovery planning including future habitat restoration and conservation efforts in the Snake River Basin and Columbia River. Images, increment measurements, and microchemistry trajectories. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Sampled Fish Snake River Chinook", "accessURL": "https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/tables/table/sampled_fish_snake_river_chinook", "mediaType": "text/html", "description": "This table describes data associated with each Snake River fall chinook salmon collected from Lyons Ferry Hatchery in 2011.", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Sampled Fish Snake River Chinook (RESTful)", "accessURL": "https://www.webapps.nwfsc.noaa.gov/apex/parr/sampled_fish_snake_river_chinook/data/page/", "mediaType": "text/html", "description": "This table describes data associated with each Snake River fall chinook salmon collected from Lyons Ferry Hatchery in 2011.", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "GCMD Keyword Forum Page", "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords", "mediaType": "text/html", "description": "Global Change Master Directory (GCMD). 2026. GCMD Keywords, Version 24. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Full Metadata Record", "accessURL": "https://www.fisheries.noaa.gov/inport/item/18138", "mediaType": "text/html", "description": "View the complete metadata record on InPort for more information about this dataset.", "describedByType": "application/octet-stream" } ] |
| identifier | https://data.noaa.gov/waf/NOAA/nmfs/nwfsc/iso/xml/18138.xml |
| issued | 2010-01-01T00:00:00.000+00:00 |
| keyword |
[ "otolith", "Lyons Ferry Hatchery", "Instrument Not Applicable", "DOC/NOAA/NMFS/NWFSC > Northwest Fisheries Science Center, National Marine Fisheries Service, NOAA. U.S. Department of Commerce", "FE (Fish Ecology) Division" ] |
| landingPage | https://www.fisheries.noaa.gov/inport/item/18138 |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2016-07-20T00:00:00.000+00:00 |
| publisher |
{ "name": "Northwest Fisheries Science Center", "@type": "org:Organization" } |
| rights | otherRestrictions, unclassified |
| spatial | -118.2183,46.5963,-118.2283,46.6063 |
| temporal | 2010-10-01T00:00:00+00:00/2010-10-01T00:00:00+00:00 |
| theme |
[ "geospatial" ] |
| title | Otolith output - Project to study alternative life history types of fall Chinook based on otoliths |
