Science Advancements Key to Increasing Management Value of Life Stage Monitoring Networks for Endangered Sacramento River Winter-Run Chinook Salmon in California
<!-- p.p1 {margin: 0.0px 0.0px 6.5px 0.0px; line-height: 13.0px; font: 11.0px RotisSerif} --> <p class="p1">doi: <a title="Johnson et al 2017" href="/ojs/index.php/jmie_sfews/editor/viewMetadata/University of California, Santa Cruz" target="_blank&qu...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
eScholarship Publishing, University of California
2017-09-01
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| Series: | San Francisco Estuary and Watershed Science |
| Subjects: | |
| Online Access: | http://escholarship.org/uc/item/6751j957 |
| _version_ | 1819153811954991104 |
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| author | Rachel C. Johnson Sean Windell Patricia L. Brandes J. Louise Conrad John Ferguson Pascale A. L. Goertler Brett N. Harvey Joseph Heublein Joshua A. Israel Daniel W. Kratville Joseph E. Kirsch Russell W. Perry Joseph Pisciooto William R. Poytress Kevin Reece Brycen G. Swart |
| author_facet | Rachel C. Johnson Sean Windell Patricia L. Brandes J. Louise Conrad John Ferguson Pascale A. L. Goertler Brett N. Harvey Joseph Heublein Joshua A. Israel Daniel W. Kratville Joseph E. Kirsch Russell W. Perry Joseph Pisciooto William R. Poytress Kevin Reece Brycen G. Swart |
| author_sort | Rachel C. Johnson |
| collection | DOAJ |
| description | <!-- p.p1 {margin: 0.0px 0.0px 6.5px 0.0px; line-height: 13.0px; font: 11.0px RotisSerif} --> <p class="p1">doi: <a title="Johnson et al 2017" href="/ojs/index.php/jmie_sfews/editor/viewMetadata/University of California, Santa Cruz" target="_blank">https://doi.org/10.15447/sfews.2017v15iss3art1</a></p><p class="p1">A robust monitoring network that provides quantitative information about the status of imperiled species at key life stages and geographic locations over time is fundamental for sustainable management of fisheries resources. For anadromous species, management actions in one geographic domain can substantially affect abundance of subsequent life stages that span broad geographic regions. Quantitative metrics (e.g., abundance, movement, survival, life history diversity, and condition) at multiple life stages are needed to inform how management actions (e.g., hatcheries, harvest, hydrology, and habitat restoration) influence salmon population dynamics. The existing monitoring network for endangered Sacramento River winter-run Chinook Salmon (SRWRC, <em>Oncorhynchus tshawytscha</em>) in California’s Central Valley was compared to conceptual models developed for each life stage and geographic region of the life cycle to identify relevant SRWRC metrics. We concluded that the current monitoring network was insufficient to diagnose when (life stage) and where (geographic domain) chronic or episodic reductions in SRWRC cohorts occur, precluding within- and among-year comparisons. The strongest quantitative data exist in the Upper Sacramento River, where abundance estimates are generated for adult spawners and emigrating juveniles. However, once SRWRC leave the upper river, our knowledge of their identity, abundance, and condition diminishes, despite the juvenile monitoring enterprise. We identified six system-wide recommended actions to strengthen the value of data generated from the existing monitoring network to assess resource management actions: (1) incorporate genetic run identification; (2) develop juvenile abundance estimates; (3) collect data for life history diversity metrics at multiple life stages; (4) expand and enhance real-time fish survival and movement monitoring; (5) collect fish condition data; and (6) provide timely public access to monitoring data in open data formats. To illustrate how updated technologies can enhance the existing monitoring to provide quantitative data on SRWRC, we provide examples of how each recommendation can address specific management issues</p> |
| first_indexed | 2024-12-22T15:11:08Z |
| format | Article |
| id | doaj.art-ad85a9198b0246dd8b931642b53fc33b |
| institution | Directory Open Access Journal |
| issn | 1546-2366 |
| language | English |
| last_indexed | 2024-12-22T15:11:08Z |
| publishDate | 2017-09-01 |
| publisher | eScholarship Publishing, University of California |
| record_format | Article |
| series | San Francisco Estuary and Watershed Science |
| spelling | doaj.art-ad85a9198b0246dd8b931642b53fc33b2022-12-21T18:21:53ZengeScholarship Publishing, University of CaliforniaSan Francisco Estuary and Watershed Science1546-23662017-09-01153ark:13030/qt6751j957Science Advancements Key to Increasing Management Value of Life Stage Monitoring Networks for Endangered Sacramento River Winter-Run Chinook Salmon in CaliforniaRachel C. Johnson0Sean Windell1Patricia L. Brandes2J. Louise Conrad3John Ferguson4Pascale A. L. Goertler5Brett N. Harvey6Joseph Heublein7Joshua A. Israel8Daniel W. Kratville9Joseph E. Kirsch10Russell W. Perry11Joseph Pisciooto12William R. Poytress13Kevin Reece14Brycen G. Swart15National Marine Fisheries Service, National Oceanic and Atmospheric Administration & Center for Watershed Sciences, University of California, DavisCalifornia Sea Grant Fellowship, Delta Stewardship CouncilU.S. Fish and Wildlife ServiceCalifornia Department of Water ResourcesAnchor QEACalifornia Department of Water ResourcesCalifornia Department of Water ResourcesNational Marine Fisheries Service, National Oceanic and Atmospheric AdministrationU.S. Bureau of ReclamationCalifornia Department of Fish and WildlifeU.S. Fish and Wildlife ServiceU.S Geological SurveyCalifornia Department of Fish and WildlifeU.S. Fish and Wildlife ServiceCalifornia Department of Water ResourcesNational Marine Fisheries Service, National Oceanic and Atmospheric Administration<!-- p.p1 {margin: 0.0px 0.0px 6.5px 0.0px; line-height: 13.0px; font: 11.0px RotisSerif} --> <p class="p1">doi: <a title="Johnson et al 2017" href="/ojs/index.php/jmie_sfews/editor/viewMetadata/University of California, Santa Cruz" target="_blank">https://doi.org/10.15447/sfews.2017v15iss3art1</a></p><p class="p1">A robust monitoring network that provides quantitative information about the status of imperiled species at key life stages and geographic locations over time is fundamental for sustainable management of fisheries resources. For anadromous species, management actions in one geographic domain can substantially affect abundance of subsequent life stages that span broad geographic regions. Quantitative metrics (e.g., abundance, movement, survival, life history diversity, and condition) at multiple life stages are needed to inform how management actions (e.g., hatcheries, harvest, hydrology, and habitat restoration) influence salmon population dynamics. The existing monitoring network for endangered Sacramento River winter-run Chinook Salmon (SRWRC, <em>Oncorhynchus tshawytscha</em>) in California’s Central Valley was compared to conceptual models developed for each life stage and geographic region of the life cycle to identify relevant SRWRC metrics. We concluded that the current monitoring network was insufficient to diagnose when (life stage) and where (geographic domain) chronic or episodic reductions in SRWRC cohorts occur, precluding within- and among-year comparisons. The strongest quantitative data exist in the Upper Sacramento River, where abundance estimates are generated for adult spawners and emigrating juveniles. However, once SRWRC leave the upper river, our knowledge of their identity, abundance, and condition diminishes, despite the juvenile monitoring enterprise. We identified six system-wide recommended actions to strengthen the value of data generated from the existing monitoring network to assess resource management actions: (1) incorporate genetic run identification; (2) develop juvenile abundance estimates; (3) collect data for life history diversity metrics at multiple life stages; (4) expand and enhance real-time fish survival and movement monitoring; (5) collect fish condition data; and (6) provide timely public access to monitoring data in open data formats. To illustrate how updated technologies can enhance the existing monitoring to provide quantitative data on SRWRC, we provide examples of how each recommendation can address specific management issues</p>http://escholarship.org/uc/item/6751j957Chinook Salmon, monitoring, conceptual models, life stage survival, migration, diversity |
| spellingShingle | Rachel C. Johnson Sean Windell Patricia L. Brandes J. Louise Conrad John Ferguson Pascale A. L. Goertler Brett N. Harvey Joseph Heublein Joshua A. Israel Daniel W. Kratville Joseph E. Kirsch Russell W. Perry Joseph Pisciooto William R. Poytress Kevin Reece Brycen G. Swart Science Advancements Key to Increasing Management Value of Life Stage Monitoring Networks for Endangered Sacramento River Winter-Run Chinook Salmon in California San Francisco Estuary and Watershed Science Chinook Salmon, monitoring, conceptual models, life stage survival, migration, diversity |
| title | Science Advancements Key to Increasing Management Value of Life Stage Monitoring Networks for Endangered Sacramento River Winter-Run Chinook Salmon in California |
| title_full | Science Advancements Key to Increasing Management Value of Life Stage Monitoring Networks for Endangered Sacramento River Winter-Run Chinook Salmon in California |
| title_fullStr | Science Advancements Key to Increasing Management Value of Life Stage Monitoring Networks for Endangered Sacramento River Winter-Run Chinook Salmon in California |
| title_full_unstemmed | Science Advancements Key to Increasing Management Value of Life Stage Monitoring Networks for Endangered Sacramento River Winter-Run Chinook Salmon in California |
| title_short | Science Advancements Key to Increasing Management Value of Life Stage Monitoring Networks for Endangered Sacramento River Winter-Run Chinook Salmon in California |
| title_sort | science advancements key to increasing management value of life stage monitoring networks for endangered sacramento river winter run chinook salmon in california |
| topic | Chinook Salmon, monitoring, conceptual models, life stage survival, migration, diversity |
| url | http://escholarship.org/uc/item/6751j957 |
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