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Faunal shift in southern California's coastal fishes: A new assemblage and trophic structure takes hold
Trends in coastal fish abundance indices were examined using a novel 39-year (1972–2010) time series recorded at southern California coastal power plants. Since 1972, the annual mean abundance index significantly declined (r2 = 0.45, p
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| Published in: | Estuarine, coastal and shelf science coastal and shelf science, 2013-07, Vol.127, p.29-36 |
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| cites | cdi_FETCH-LOGICAL-c462t-6309c4f6b1ee832e843088ad8fcc585a303babdfd06ed6adb0d3d97f69e6e0813 |
| container_end_page | 36 |
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| container_title | Estuarine, coastal and shelf science |
| container_volume | 127 |
| creator | Miller, Eric F. McGowan, John A. |
| description | Trends in coastal fish abundance indices were examined using a novel 39-year (1972–2010) time series recorded at southern California coastal power plants. Since 1972, the annual mean abundance index significantly declined (r2 = 0.45, p |
| doi_str_mv | 10.1016/j.ecss.2013.04.014 |
| format | article |
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Since 1972, the annual mean abundance index significantly declined (r2 = 0.45, p < 0.001). The mean annual biomass index likewise declined but with a large interruption in 2005–2006 when an influx of large bodied, southern species increased the annual means. Ensemble mean abundance indices for fished and unfished species declined at similar rates. Two faunal shifts were identified, 1983–1984 and 1989–1990. The ensemble mean, annual entrapment rate abundance index during the current period (1990–2010) represents only 22% of that recorded during the first and most abundant period, 1972–1983. The mean biogeographic distribution of the assemblage was non-linear over time including a shift south during the 1980s through the 1990s before shifting north in recent years. The northern shift in recent years accompanied higher variability than previously recorded and was likely related to the overall low abundance. Since the early 1980s, the mean trophic level derived from abundance declined. The observed patterns were not correlated with commonly employed composite indices such as the Pacific Decadal Oscillation, but did show some sensitivity to changes in coastal seawater temperature and density over time. Timing of the observed faunal shifts in the fish assemblage was consistent with reported oceanographic shifts. These data suggested factors beyond fishing, such as oceanographic change, have substantially impacted the coastal fishes of southern California.</description><identifier>ISSN: 0272-7714</identifier><identifier>EISSN: 1096-0015</identifier><identifier>DOI: 10.1016/j.ecss.2013.04.014</identifier><identifier>CODEN: ECSSD3</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Abundance ; Agnatha. Pisces ; Animal and plant ecology ; Animal, plant and microbial ecology ; biogeographic shift ; Biological and medical sciences ; Biomass ; bottom-up forcing ; Brackish water ecosystems ; climate change ; Climatology. Bioclimatology. Climate change ; Coastal ; coastal fish ; Density ; Earth, ocean, space ; Exact sciences and technology ; External geophysics ; Fish ; fishing impact ; forage fish ; Fundamental and applied biological sciences. Psychology ; Marine ; Meteorology ; Oscillations ; Pisces ; power plant ; Sea water ; Southern California ; Synecology ; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><ispartof>Estuarine, coastal and shelf science, 2013-07, Vol.127, p.29-36</ispartof><rights>2013 Elsevier Ltd</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c462t-6309c4f6b1ee832e843088ad8fcc585a303babdfd06ed6adb0d3d97f69e6e0813</citedby><cites>FETCH-LOGICAL-c462t-6309c4f6b1ee832e843088ad8fcc585a303babdfd06ed6adb0d3d97f69e6e0813</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27453357$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Miller, Eric F.</creatorcontrib><creatorcontrib>McGowan, John A.</creatorcontrib><title>Faunal shift in southern California's coastal fishes: A new assemblage and trophic structure takes hold</title><title>Estuarine, coastal and shelf science</title><description>Trends in coastal fish abundance indices were examined using a novel 39-year (1972–2010) time series recorded at southern California coastal power plants. Since 1972, the annual mean abundance index significantly declined (r2 = 0.45, p < 0.001). The mean annual biomass index likewise declined but with a large interruption in 2005–2006 when an influx of large bodied, southern species increased the annual means. Ensemble mean abundance indices for fished and unfished species declined at similar rates. Two faunal shifts were identified, 1983–1984 and 1989–1990. The ensemble mean, annual entrapment rate abundance index during the current period (1990–2010) represents only 22% of that recorded during the first and most abundant period, 1972–1983. The mean biogeographic distribution of the assemblage was non-linear over time including a shift south during the 1980s through the 1990s before shifting north in recent years. The northern shift in recent years accompanied higher variability than previously recorded and was likely related to the overall low abundance. Since the early 1980s, the mean trophic level derived from abundance declined. The observed patterns were not correlated with commonly employed composite indices such as the Pacific Decadal Oscillation, but did show some sensitivity to changes in coastal seawater temperature and density over time. Timing of the observed faunal shifts in the fish assemblage was consistent with reported oceanographic shifts. These data suggested factors beyond fishing, such as oceanographic change, have substantially impacted the coastal fishes of southern California.</description><subject>Abundance</subject><subject>Agnatha. Pisces</subject><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>biogeographic shift</subject><subject>Biological and medical sciences</subject><subject>Biomass</subject><subject>bottom-up forcing</subject><subject>Brackish water ecosystems</subject><subject>climate change</subject><subject>Climatology. Bioclimatology. Climate change</subject><subject>Coastal</subject><subject>coastal fish</subject><subject>Density</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Fish</subject><subject>fishing impact</subject><subject>forage fish</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Marine</subject><subject>Meteorology</subject><subject>Oscillations</subject><subject>Pisces</subject><subject>power plant</subject><subject>Sea water</subject><subject>Southern California</subject><subject>Synecology</subject><subject>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><issn>0272-7714</issn><issn>1096-0015</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqNkU2L1EAQhoMoOK7-AU99Eb0kVn8mLV6WwVVhwYuem053ZdNjJhm7Oor_3gyzeNQ9FRTP-xbUU1UvOTQcuHl7aDAQNQK4bEA1wNWjasfBmhqA68fVDkQr6rbl6mn1jOiwbbmWYlfd3fh19hOjMQ2FpZnRspYR88z2fkrDkufkXxMLi6eyYUOiEekdu2Yz_mKeCI_95O-Q-TmykpfTmAKjktdQ1oys-O9IbFym-Lx6MviJ8MX9vKq-3Xz4uv9U3375-Hl_fVsHZUSpjQQb1GB6jthJgZ2S0HU-dkMIutNegux9H4cIBqPxsYcoo20HY9EgdFxeVW8uvae8_FiRijsmCjhNfsZlJcctt9ZYsPr_qNFcAQjzgFajWoDWWvEAVGoQQrewoeKChrwQZRzcKaejz78dB3fW6g7urNWdtTpQbtO6hV7d93sKfhqyn0Oiv0nRKi2lbjfu_YXD7ds_E2ZHIeEcMKaMobi4pH-d-QOOErgU</recordid><startdate>20130701</startdate><enddate>20130701</enddate><creator>Miller, Eric F.</creator><creator>McGowan, John A.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7TN</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>H96</scope></search><sort><creationdate>20130701</creationdate><title>Faunal shift in southern California's coastal fishes: A new assemblage and trophic structure takes hold</title><author>Miller, Eric F. ; McGowan, John A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c462t-6309c4f6b1ee832e843088ad8fcc585a303babdfd06ed6adb0d3d97f69e6e0813</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Abundance</topic><topic>Agnatha. Pisces</topic><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>biogeographic shift</topic><topic>Biological and medical sciences</topic><topic>Biomass</topic><topic>bottom-up forcing</topic><topic>Brackish water ecosystems</topic><topic>climate change</topic><topic>Climatology. Bioclimatology. Climate change</topic><topic>Coastal</topic><topic>coastal fish</topic><topic>Density</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>External geophysics</topic><topic>Fish</topic><topic>fishing impact</topic><topic>forage fish</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Marine</topic><topic>Meteorology</topic><topic>Oscillations</topic><topic>Pisces</topic><topic>power plant</topic><topic>Sea water</topic><topic>Southern California</topic><topic>Synecology</topic><topic>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Miller, Eric F.</creatorcontrib><creatorcontrib>McGowan, John A.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><jtitle>Estuarine, coastal and shelf science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Miller, Eric F.</au><au>McGowan, John A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Faunal shift in southern California's coastal fishes: A new assemblage and trophic structure takes hold</atitle><jtitle>Estuarine, coastal and shelf science</jtitle><date>2013-07-01</date><risdate>2013</risdate><volume>127</volume><spage>29</spage><epage>36</epage><pages>29-36</pages><issn>0272-7714</issn><eissn>1096-0015</eissn><coden>ECSSD3</coden><abstract>Trends in coastal fish abundance indices were examined using a novel 39-year (1972–2010) time series recorded at southern California coastal power plants. Since 1972, the annual mean abundance index significantly declined (r2 = 0.45, p < 0.001). The mean annual biomass index likewise declined but with a large interruption in 2005–2006 when an influx of large bodied, southern species increased the annual means. Ensemble mean abundance indices for fished and unfished species declined at similar rates. Two faunal shifts were identified, 1983–1984 and 1989–1990. The ensemble mean, annual entrapment rate abundance index during the current period (1990–2010) represents only 22% of that recorded during the first and most abundant period, 1972–1983. The mean biogeographic distribution of the assemblage was non-linear over time including a shift south during the 1980s through the 1990s before shifting north in recent years. The northern shift in recent years accompanied higher variability than previously recorded and was likely related to the overall low abundance. Since the early 1980s, the mean trophic level derived from abundance declined. The observed patterns were not correlated with commonly employed composite indices such as the Pacific Decadal Oscillation, but did show some sensitivity to changes in coastal seawater temperature and density over time. Timing of the observed faunal shifts in the fish assemblage was consistent with reported oceanographic shifts. These data suggested factors beyond fishing, such as oceanographic change, have substantially impacted the coastal fishes of southern California.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ecss.2013.04.014</doi><tpages>8</tpages></addata></record> |
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| ispartof | Estuarine, coastal and shelf science, 2013-07, Vol.127, p.29-36 |
| issn | 0272-7714 1096-0015 |
| language | eng |
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| source | ScienceDirect Freedom Collection |
| subjects | Abundance Agnatha. Pisces Animal and plant ecology Animal, plant and microbial ecology biogeographic shift Biological and medical sciences Biomass bottom-up forcing Brackish water ecosystems climate change Climatology. Bioclimatology. Climate change Coastal coastal fish Density Earth, ocean, space Exact sciences and technology External geophysics Fish fishing impact forage fish Fundamental and applied biological sciences. Psychology Marine Meteorology Oscillations Pisces power plant Sea water Southern California Synecology Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution |
| title | Faunal shift in southern California's coastal fishes: A new assemblage and trophic structure takes hold |
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