Oxygen declines and the shoaling of the hypoxic boundary in the California Current
We use hydrographic data from the California Cooperative Oceanic Fisheries Investigations program to explore the spatial and temporal variability of dissolved oxygen (DO) in the southern California Current System (CCS) over the period 1984–2006. Large declines in DO (up to 2.1 μmol/kg/y) have been o...
Gespeichert in:
| Veröffentlicht in: | Geophysical research letters 2008-06, Vol.35 (12), p.np-n/a |
|---|---|
| Hauptverfasser: | , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | n/a |
|---|---|
| container_issue | 12 |
| container_start_page | np |
| container_title | Geophysical research letters |
| container_volume | 35 |
| creator | Bograd, Steven J. Castro, Carmen G. Di Lorenzo, Emanuele Palacios, Daniel M. Bailey, Helen Gilly, William Chavez, Francisco P. |
| description | We use hydrographic data from the California Cooperative Oceanic Fisheries Investigations program to explore the spatial and temporal variability of dissolved oxygen (DO) in the southern California Current System (CCS) over the period 1984–2006. Large declines in DO (up to 2.1 μmol/kg/y) have been observed throughout the domain, with the largest relative DO declines occurring below the thermocline (mean decrease of 21% at 300 m). Linear trends were significant (p < 0.05) at the majority of stations down to 500 m. The hypoxic boundary (∼60 μmol/kg) has shoaled by up to 90 m within portions of the southern CCS. The observed trends are consistent with advection of low‐DO waters into the region, as well as decreased vertical oxygen transport following near‐surface warming and increased stratification. Expansion of the oxygen minimum layer could lead to cascading effects on benthic and pelagic ecosystems, including habitat compression and community reorganization. |
| doi_str_mv | 10.1029/2008GL034185 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1642311861</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1642311861</sourcerecordid><originalsourceid>FETCH-LOGICAL-c5165-93ad46b5fcc1b0fd637a0ca224a7163b4744ae7085bd9fe809479d4e3890ce563</originalsourceid><addsrcrecordid>eNqFkElPwzAQhS0EEqVw4wfkgsSBwHh3jlBBQSqLWMTRchyHGoJT7Fa0_560RYgTnGbR955mHkL7GI4xkOKEAKjhCCjDim-gHi4YyxWA3EQ9gKLriRTbaCelVwCgQHEP3d_OFy8uZJWzjQ8uZSZU2XTssjRuTbd5ydp6NY8Xk3bubVa2s1CZuMh8WO0HHVW3MXiTDWYxujDdRVu1aZLb-6599HRx_ji4zEe3w6vB6Si3HAueF9RUTJS8thaXUFeCSgPWEMKMxIKWTDJmnATFy6qoneoekEXFHFUFWMcF7aPDte8kth8zl6b63SfrmsYE186SxoIRirES-H-UE8aA8i6TPjpaoza2KUVX60n0793DGoNepqx_p9zhB9_OJlnT1NEE69OPhgBXBLPlsWTNffrGLf701MP7EWFiZZ6vRT5N3fxHZOKbFpJKrp9vhvqsu_zu4ZppRb8Aff6YPg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1524403530</pqid></control><display><type>article</type><title>Oxygen declines and the shoaling of the hypoxic boundary in the California Current</title><source>Wiley Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Wiley Free Content</source><source>Wiley-Blackwell AGU Digital Library</source><creator>Bograd, Steven J. ; Castro, Carmen G. ; Di Lorenzo, Emanuele ; Palacios, Daniel M. ; Bailey, Helen ; Gilly, William ; Chavez, Francisco P.</creator><creatorcontrib>Bograd, Steven J. ; Castro, Carmen G. ; Di Lorenzo, Emanuele ; Palacios, Daniel M. ; Bailey, Helen ; Gilly, William ; Chavez, Francisco P.</creatorcontrib><description>We use hydrographic data from the California Cooperative Oceanic Fisheries Investigations program to explore the spatial and temporal variability of dissolved oxygen (DO) in the southern California Current System (CCS) over the period 1984–2006. Large declines in DO (up to 2.1 μmol/kg/y) have been observed throughout the domain, with the largest relative DO declines occurring below the thermocline (mean decrease of 21% at 300 m). Linear trends were significant (p < 0.05) at the majority of stations down to 500 m. The hypoxic boundary (∼60 μmol/kg) has shoaled by up to 90 m within portions of the southern CCS. The observed trends are consistent with advection of low‐DO waters into the region, as well as decreased vertical oxygen transport following near‐surface warming and increased stratification. Expansion of the oxygen minimum layer could lead to cascading effects on benthic and pelagic ecosystems, including habitat compression and community reorganization.</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/2008GL034185</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Boundaries ; CalCOFI ; California Current System ; Cascading ; Dissolution ; dissolved oxygen ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Fisheries ; Geophysics ; hypoxia ; Marine ; oxygen minimum layer ; Southern California ; Stratification ; Trends</subject><ispartof>Geophysical research letters, 2008-06, Vol.35 (12), p.np-n/a</ispartof><rights>Copyright 2008 by the American Geophysical Union.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5165-93ad46b5fcc1b0fd637a0ca224a7163b4744ae7085bd9fe809479d4e3890ce563</citedby><cites>FETCH-LOGICAL-c5165-93ad46b5fcc1b0fd637a0ca224a7163b4744ae7085bd9fe809479d4e3890ce563</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2008GL034185$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2008GL034185$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,1433,11514,27924,27925,45574,45575,46409,46468,46833,46892</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20582146$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Bograd, Steven J.</creatorcontrib><creatorcontrib>Castro, Carmen G.</creatorcontrib><creatorcontrib>Di Lorenzo, Emanuele</creatorcontrib><creatorcontrib>Palacios, Daniel M.</creatorcontrib><creatorcontrib>Bailey, Helen</creatorcontrib><creatorcontrib>Gilly, William</creatorcontrib><creatorcontrib>Chavez, Francisco P.</creatorcontrib><title>Oxygen declines and the shoaling of the hypoxic boundary in the California Current</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>We use hydrographic data from the California Cooperative Oceanic Fisheries Investigations program to explore the spatial and temporal variability of dissolved oxygen (DO) in the southern California Current System (CCS) over the period 1984–2006. Large declines in DO (up to 2.1 μmol/kg/y) have been observed throughout the domain, with the largest relative DO declines occurring below the thermocline (mean decrease of 21% at 300 m). Linear trends were significant (p < 0.05) at the majority of stations down to 500 m. The hypoxic boundary (∼60 μmol/kg) has shoaled by up to 90 m within portions of the southern CCS. The observed trends are consistent with advection of low‐DO waters into the region, as well as decreased vertical oxygen transport following near‐surface warming and increased stratification. Expansion of the oxygen minimum layer could lead to cascading effects on benthic and pelagic ecosystems, including habitat compression and community reorganization.</description><subject>Boundaries</subject><subject>CalCOFI</subject><subject>California Current System</subject><subject>Cascading</subject><subject>Dissolution</subject><subject>dissolved oxygen</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Fisheries</subject><subject>Geophysics</subject><subject>hypoxia</subject><subject>Marine</subject><subject>oxygen minimum layer</subject><subject>Southern California</subject><subject>Stratification</subject><subject>Trends</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkElPwzAQhS0EEqVw4wfkgsSBwHh3jlBBQSqLWMTRchyHGoJT7Fa0_560RYgTnGbR955mHkL7GI4xkOKEAKjhCCjDim-gHi4YyxWA3EQ9gKLriRTbaCelVwCgQHEP3d_OFy8uZJWzjQ8uZSZU2XTssjRuTbd5ydp6NY8Xk3bubVa2s1CZuMh8WO0HHVW3MXiTDWYxujDdRVu1aZLb-6599HRx_ji4zEe3w6vB6Si3HAueF9RUTJS8thaXUFeCSgPWEMKMxIKWTDJmnATFy6qoneoekEXFHFUFWMcF7aPDte8kth8zl6b63SfrmsYE186SxoIRirES-H-UE8aA8i6TPjpaoza2KUVX60n0793DGoNepqx_p9zhB9_OJlnT1NEE69OPhgBXBLPlsWTNffrGLf701MP7EWFiZZ6vRT5N3fxHZOKbFpJKrp9vhvqsu_zu4ZppRb8Aff6YPg</recordid><startdate>20080628</startdate><enddate>20080628</enddate><creator>Bograd, Steven J.</creator><creator>Castro, Carmen G.</creator><creator>Di Lorenzo, Emanuele</creator><creator>Palacios, Daniel M.</creator><creator>Bailey, Helen</creator><creator>Gilly, William</creator><creator>Chavez, Francisco P.</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7TG</scope><scope>7TN</scope><scope>7U6</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20080628</creationdate><title>Oxygen declines and the shoaling of the hypoxic boundary in the California Current</title><author>Bograd, Steven J. ; Castro, Carmen G. ; Di Lorenzo, Emanuele ; Palacios, Daniel M. ; Bailey, Helen ; Gilly, William ; Chavez, Francisco P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5165-93ad46b5fcc1b0fd637a0ca224a7163b4744ae7085bd9fe809479d4e3890ce563</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Boundaries</topic><topic>CalCOFI</topic><topic>California Current System</topic><topic>Cascading</topic><topic>Dissolution</topic><topic>dissolved oxygen</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Fisheries</topic><topic>Geophysics</topic><topic>hypoxia</topic><topic>Marine</topic><topic>oxygen minimum layer</topic><topic>Southern California</topic><topic>Stratification</topic><topic>Trends</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bograd, Steven J.</creatorcontrib><creatorcontrib>Castro, Carmen G.</creatorcontrib><creatorcontrib>Di Lorenzo, Emanuele</creatorcontrib><creatorcontrib>Palacios, Daniel M.</creatorcontrib><creatorcontrib>Bailey, Helen</creatorcontrib><creatorcontrib>Gilly, William</creatorcontrib><creatorcontrib>Chavez, Francisco P.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Sustainability Science Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bograd, Steven J.</au><au>Castro, Carmen G.</au><au>Di Lorenzo, Emanuele</au><au>Palacios, Daniel M.</au><au>Bailey, Helen</au><au>Gilly, William</au><au>Chavez, Francisco P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Oxygen declines and the shoaling of the hypoxic boundary in the California Current</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2008-06-28</date><risdate>2008</risdate><volume>35</volume><issue>12</issue><spage>np</spage><epage>n/a</epage><pages>np-n/a</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>We use hydrographic data from the California Cooperative Oceanic Fisheries Investigations program to explore the spatial and temporal variability of dissolved oxygen (DO) in the southern California Current System (CCS) over the period 1984–2006. Large declines in DO (up to 2.1 μmol/kg/y) have been observed throughout the domain, with the largest relative DO declines occurring below the thermocline (mean decrease of 21% at 300 m). Linear trends were significant (p < 0.05) at the majority of stations down to 500 m. The hypoxic boundary (∼60 μmol/kg) has shoaled by up to 90 m within portions of the southern CCS. The observed trends are consistent with advection of low‐DO waters into the region, as well as decreased vertical oxygen transport following near‐surface warming and increased stratification. Expansion of the oxygen minimum layer could lead to cascading effects on benthic and pelagic ecosystems, including habitat compression and community reorganization.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2008GL034185</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-8276 |
| ispartof | Geophysical research letters, 2008-06, Vol.35 (12), p.np-n/a |
| issn | 0094-8276 1944-8007 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1642311861 |
| source | Wiley Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Wiley Free Content; Wiley-Blackwell AGU Digital Library |
| subjects | Boundaries CalCOFI California Current System Cascading Dissolution dissolved oxygen Earth sciences Earth, ocean, space Exact sciences and technology Fisheries Geophysics hypoxia Marine oxygen minimum layer Southern California Stratification Trends |
| title | Oxygen declines and the shoaling of the hypoxic boundary in the California Current |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-04T14%3A15%3A04IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Oxygen%20declines%20and%20the%20shoaling%20of%20the%20hypoxic%20boundary%20in%20the%20California%20Current&rft.jtitle=Geophysical%20research%20letters&rft.au=Bograd,%20Steven%20J.&rft.date=2008-06-28&rft.volume=35&rft.issue=12&rft.spage=np&rft.epage=n/a&rft.pages=np-n/a&rft.issn=0094-8276&rft.eissn=1944-8007&rft.coden=GPRLAJ&rft_id=info:doi/10.1029/2008GL034185&rft_dat=%3Cproquest_cross%3E1642311861%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1524403530&rft_id=info:pmid/&rfr_iscdi=true |