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    • Oceanographic Trawl Data - Juvenile Salmon & Ocean Ecosystem Survey

    Metadata Updated: March 8, 2024

    FY20 will mark the 23nd year of sampling, making the Juvenile Salmon and Ocean Ecosystem Survey (JSOES) the longest running salmon survey on the west coast. JSOES has clearly demonstrated correlations between ocean conditions and the distribution, abundance, and survival of juvenile Columbia River (CR) salmon in the Northern California Current (NCC) nearshore ecosystem. For example, our ocean indicators provide managers from the federal and state governments, tribes, and other agencies/groups the ability to forecast adult returns one to two years in advance for coho and spring/summer Chinook salmon. We continue to show the importance of evaluating ocean conditions to support management decisions and to provide context for efforts by the Northwest Power and Conservation Council (NWPCC) and BPA to restore and enhance salmon production.

    The primary goal of our work is to develop a mechanistic understanding of how trophic dynamics and conditions in the ocean and CR plume affect survival of juvenile salmonids. This knowledge will allow us to improve forecasts in a quantitative rather than qualitative manner, and decouple the effects of mitigation efforts in the freshwater environment from the effects of a changing ocean environment. These improved forecasts will lead to well-informed recommendations for an ecosystem approach to management strategies based on the full suite of river, plume, and ocean environments. Nekton and juvenile salmon collections from surface trawl.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date February 29, 2024
    Metadata Created Date July 28, 2023
    Metadata Updated Date March 8, 2024
    Reference Date(s) June 1, 1998 (creation), March 17, 2017 (publication)
    Frequency Of Update

    Metadata Source

    Harvested from NMFS NWFSC

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 29, 2024
    Metadata Created Date July 28, 2023
    Metadata Updated Date March 8, 2024
    Reference Date(s) June 1, 1998 (creation), March 17, 2017 (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:18501
    Access Constraints Cite As: Northwest Fisheries Science Center, [Date of Access]: Oceanographic Trawl Data - Juvenile Salmon & Ocean Ecosystem Survey [Data Date Range], https://www.fisheries.noaa.gov/inport/item/18501., Access Constraints: NA
    Bbox East Long -122.3027
    Bbox North Lat 47.9491
    Bbox South Lat 44.6229
    Bbox West Long -124.0472
    Coupled Resource
    Frequency Of Update
    Harvest Object Id 5d969a44-c276-4f31-ad0a-3753737e333f
    Harvest Source Id ba43549f-8268-499d-bec8-91b164cb168f
    Harvest Source Title NMFS NWFSC
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage Entry into Access/Excel from datasheets: These data were collected and processed in accordance with established protocols and best practices under the direction of the project’s Principal Investigator. Contact the dataset Data Manager for full QA/QC methodology.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-124.0472, 44.6229], [-122.3027, 44.6229], [-122.3027, 47.9491], [-124.0472, 47.9491], [-124.0472, 44.6229]]]}
    Progress underDevelopment
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1998-06-01

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