Environmental transformation of the Bilbao estuary, N. Spain: microfaunal and geochemical proxies in the recent sedimentary record
The distribution and abundance of benthic foraminifera and a range of elements have been analysed in six long cores (up to 10 m long) from the Bilbao estuary, N. Spain, to document environmental transformation of this estuarine ecosystem and to determine sediment contamination levels. Three differen...
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| Veröffentlicht in: | Marine pollution bulletin 2002-06, Vol.44 (6), p.487-503 |
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| creator | Cearreta, A Irabien, M.J Leorri, E Yusta, I Quintanilla, A Zabaleta, A |
| description | The distribution and abundance of benthic foraminifera and a range of elements have been analysed in six long cores (up to 10 m long) from the Bilbao estuary, N. Spain, to document environmental transformation of this estuarine ecosystem and to determine sediment contamination levels. Three different environmental zones could be distinguished in the recent sedimentary record based on its microfaunal and geochemical contents. Initially, a pre-industrial zone containing very abundant and diverse foraminiferal assemblages together with baseline metal levels. Secondly, an older industrial zone exhibiting co-existence of abundant and diverse foraminiferal assemblages with high concentrations of metals. Finally, a younger industrial zone with extreme concentrations of metals and barren of indigenous foraminifera. This environmental transformation has been caused by the discharge of untreated domestic and industrial effluents during the last 150 years. The occurrence of foraminifera in the two industrial zones and along the estuary is not related to defined levels of metals, and this seems to confirm oxygen limitation as the key factor to explain complete estuarine defaunation during deposition of the younger industrial zone (period 1950–2000). Effectiveness of current regeneration schemes could be assessed using microfaunal and geochemical proxies as environmental quality indicators. |
| doi_str_mv | 10.1016/S0025-326X(01)00261-2 |
| format | Article |
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Spain: microfaunal and geochemical proxies in the recent sedimentary record</title><source>MEDLINE</source><source>Elsevier ScienceDirect Journals Complete</source><creator>Cearreta, A ; Irabien, M.J ; Leorri, E ; Yusta, I ; Quintanilla, A ; Zabaleta, A</creator><creatorcontrib>Cearreta, A ; Irabien, M.J ; Leorri, E ; Yusta, I ; Quintanilla, A ; Zabaleta, A</creatorcontrib><description>The distribution and abundance of benthic foraminifera and a range of elements have been analysed in six long cores (up to 10 m long) from the Bilbao estuary, N. Spain, to document environmental transformation of this estuarine ecosystem and to determine sediment contamination levels. Three different environmental zones could be distinguished in the recent sedimentary record based on its microfaunal and geochemical contents. Initially, a pre-industrial zone containing very abundant and diverse foraminiferal assemblages together with baseline metal levels. Secondly, an older industrial zone exhibiting co-existence of abundant and diverse foraminiferal assemblages with high concentrations of metals. Finally, a younger industrial zone with extreme concentrations of metals and barren of indigenous foraminifera. This environmental transformation has been caused by the discharge of untreated domestic and industrial effluents during the last 150 years. The occurrence of foraminifera in the two industrial zones and along the estuary is not related to defined levels of metals, and this seems to confirm oxygen limitation as the key factor to explain complete estuarine defaunation during deposition of the younger industrial zone (period 1950–2000). Effectiveness of current regeneration schemes could be assessed using microfaunal and geochemical proxies as environmental quality indicators.</description><identifier>ISSN: 0025-326X</identifier><identifier>EISSN: 1879-3363</identifier><identifier>DOI: 10.1016/S0025-326X(01)00261-2</identifier><identifier>PMID: 12146832</identifier><identifier>CODEN: MPNBAZ</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Animal, plant and microbial ecology ; Animals ; Anthropogenic transformation ; Applied ecology ; Applied sciences ; Benthic foraminifera ; Bilbao estuary ; Biological and medical sciences ; Biological and physicochemical properties of pollutants. Interaction in the soil ; Brackish ; Earth sciences ; Earth, ocean, space ; Ecosystem ; Ecotoxicology, biological effects of pollution ; Engineering and environment geology. Geothermics ; Environmental Monitoring ; Environmental regeneration ; Exact sciences and technology ; foraminifera ; Fundamental and applied biological sciences. Psychology ; Geologic Sediments - chemistry ; Geological Phenomena ; Geology ; Heavy metals and As ; Industrial Waste ; Marine and brackish environment ; Metals, Heavy - adverse effects ; Metals, Heavy - analysis ; Natural water pollution ; Pollution ; Pollution, environment geology ; Population Dynamics ; Seawaters, estuaries ; Sedimentary record ; Soil and sediments pollution ; Spain ; Spain, Bilbao R ; Water treatment and pollution ; Zooplankton</subject><ispartof>Marine pollution bulletin, 2002-06, Vol.44 (6), p.487-503</ispartof><rights>2002</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a476t-694f2143710e9225d1d71246ae87e01db7684c1430ea71e96d1f446a84235cd83</citedby><cites>FETCH-LOGICAL-a476t-694f2143710e9225d1d71246ae87e01db7684c1430ea71e96d1f446a84235cd83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0025-326X(01)00261-2$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13707713$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12146832$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Cearreta, A</creatorcontrib><creatorcontrib>Irabien, M.J</creatorcontrib><creatorcontrib>Leorri, E</creatorcontrib><creatorcontrib>Yusta, I</creatorcontrib><creatorcontrib>Quintanilla, A</creatorcontrib><creatorcontrib>Zabaleta, A</creatorcontrib><title>Environmental transformation of the Bilbao estuary, N. Spain: microfaunal and geochemical proxies in the recent sedimentary record</title><title>Marine pollution bulletin</title><addtitle>Mar Pollut Bull</addtitle><description>The distribution and abundance of benthic foraminifera and a range of elements have been analysed in six long cores (up to 10 m long) from the Bilbao estuary, N. Spain, to document environmental transformation of this estuarine ecosystem and to determine sediment contamination levels. Three different environmental zones could be distinguished in the recent sedimentary record based on its microfaunal and geochemical contents. Initially, a pre-industrial zone containing very abundant and diverse foraminiferal assemblages together with baseline metal levels. Secondly, an older industrial zone exhibiting co-existence of abundant and diverse foraminiferal assemblages with high concentrations of metals. Finally, a younger industrial zone with extreme concentrations of metals and barren of indigenous foraminifera. This environmental transformation has been caused by the discharge of untreated domestic and industrial effluents during the last 150 years. The occurrence of foraminifera in the two industrial zones and along the estuary is not related to defined levels of metals, and this seems to confirm oxygen limitation as the key factor to explain complete estuarine defaunation during deposition of the younger industrial zone (period 1950–2000). Effectiveness of current regeneration schemes could be assessed using microfaunal and geochemical proxies as environmental quality indicators.</description><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Anthropogenic transformation</subject><subject>Applied ecology</subject><subject>Applied sciences</subject><subject>Benthic foraminifera</subject><subject>Bilbao estuary</subject><subject>Biological and medical sciences</subject><subject>Biological and physicochemical properties of pollutants. Interaction in the soil</subject><subject>Brackish</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Ecosystem</subject><subject>Ecotoxicology, biological effects of pollution</subject><subject>Engineering and environment geology. Geothermics</subject><subject>Environmental Monitoring</subject><subject>Environmental regeneration</subject><subject>Exact sciences and technology</subject><subject>foraminifera</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Geologic Sediments - chemistry</subject><subject>Geological Phenomena</subject><subject>Geology</subject><subject>Heavy metals and As</subject><subject>Industrial Waste</subject><subject>Marine and brackish environment</subject><subject>Metals, Heavy - adverse effects</subject><subject>Metals, Heavy - analysis</subject><subject>Natural water pollution</subject><subject>Pollution</subject><subject>Pollution, environment geology</subject><subject>Population Dynamics</subject><subject>Seawaters, estuaries</subject><subject>Sedimentary record</subject><subject>Soil and sediments pollution</subject><subject>Spain</subject><subject>Spain, Bilbao R</subject><subject>Water treatment and pollution</subject><subject>Zooplankton</subject><issn>0025-326X</issn><issn>1879-3363</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkctu1TAQhi0EoofCI4C8AYFEisdO7IQNgqpcpAoWBYmd5RNPqFFin9pJRbc8OXMuosuurBl_c_t_xp6COAEB-s2FELKplNQ_Xwp4RYGGSt5jK2hNVyml1X22-o8csUel_BZCGGngITsCCbVulVyxv2fxOuQUJ4yzG_mcXSxDypObQ4o8DXy-RP4hjGuXOJZ5cfnmNf96wi82LsS3fAp9ToNbItW66PkvTP0lUpbiTU5_AhYe4q5Jxp5m8II-7Iblm20qZf-YPRjcWPDJ4T1mPz6efT_9XJ1_-_Tl9P155Wqj50p39UBrKwMCOykbD96ArLXD1qAAvza6rXsCBDoD2GkPQ03fbS1V0_tWHbMX-7602NVCx9gplB7H0UVMS7GgQbVQd3eDtVamMZLAZg-SCKVkHOwmh4kusyDs1iW7c8luLbAC7M4lu617dhiwrCf0t1UHWwh4fgBcISkHcqUP5ZZTRhgDirh3ew5Jt-uA2ZY-YOxJY9J2tj6FO1b5B8H1r1U</recordid><startdate>20020601</startdate><enddate>20020601</enddate><creator>Cearreta, A</creator><creator>Irabien, M.J</creator><creator>Leorri, E</creator><creator>Yusta, I</creator><creator>Quintanilla, A</creator><creator>Zabaleta, A</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7QH</scope><scope>7TN</scope><scope>7TV</scope><scope>7UA</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope></search><sort><creationdate>20020601</creationdate><title>Environmental transformation of the Bilbao estuary, N. Spain: microfaunal and geochemical proxies in the recent sedimentary record</title><author>Cearreta, A ; Irabien, M.J ; Leorri, E ; Yusta, I ; Quintanilla, A ; Zabaleta, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a476t-694f2143710e9225d1d71246ae87e01db7684c1430ea71e96d1f446a84235cd83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Animal, plant and microbial ecology</topic><topic>Animals</topic><topic>Anthropogenic transformation</topic><topic>Applied ecology</topic><topic>Applied sciences</topic><topic>Benthic foraminifera</topic><topic>Bilbao estuary</topic><topic>Biological and medical sciences</topic><topic>Biological and physicochemical properties of pollutants. Interaction in the soil</topic><topic>Brackish</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Ecosystem</topic><topic>Ecotoxicology, biological effects of pollution</topic><topic>Engineering and environment geology. Geothermics</topic><topic>Environmental Monitoring</topic><topic>Environmental regeneration</topic><topic>Exact sciences and technology</topic><topic>foraminifera</topic><topic>Fundamental and applied biological sciences. 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Spain: microfaunal and geochemical proxies in the recent sedimentary record</atitle><jtitle>Marine pollution bulletin</jtitle><addtitle>Mar Pollut Bull</addtitle><date>2002-06-01</date><risdate>2002</risdate><volume>44</volume><issue>6</issue><spage>487</spage><epage>503</epage><pages>487-503</pages><issn>0025-326X</issn><eissn>1879-3363</eissn><coden>MPNBAZ</coden><abstract>The distribution and abundance of benthic foraminifera and a range of elements have been analysed in six long cores (up to 10 m long) from the Bilbao estuary, N. Spain, to document environmental transformation of this estuarine ecosystem and to determine sediment contamination levels. Three different environmental zones could be distinguished in the recent sedimentary record based on its microfaunal and geochemical contents. Initially, a pre-industrial zone containing very abundant and diverse foraminiferal assemblages together with baseline metal levels. Secondly, an older industrial zone exhibiting co-existence of abundant and diverse foraminiferal assemblages with high concentrations of metals. Finally, a younger industrial zone with extreme concentrations of metals and barren of indigenous foraminifera. This environmental transformation has been caused by the discharge of untreated domestic and industrial effluents during the last 150 years. The occurrence of foraminifera in the two industrial zones and along the estuary is not related to defined levels of metals, and this seems to confirm oxygen limitation as the key factor to explain complete estuarine defaunation during deposition of the younger industrial zone (period 1950–2000). Effectiveness of current regeneration schemes could be assessed using microfaunal and geochemical proxies as environmental quality indicators.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>12146832</pmid><doi>10.1016/S0025-326X(01)00261-2</doi><tpages>17</tpages></addata></record> |
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| ispartof | Marine pollution bulletin, 2002-06, Vol.44 (6), p.487-503 |
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| subjects | Animal, plant and microbial ecology Animals Anthropogenic transformation Applied ecology Applied sciences Benthic foraminifera Bilbao estuary Biological and medical sciences Biological and physicochemical properties of pollutants. Interaction in the soil Brackish Earth sciences Earth, ocean, space Ecosystem Ecotoxicology, biological effects of pollution Engineering and environment geology. Geothermics Environmental Monitoring Environmental regeneration Exact sciences and technology foraminifera Fundamental and applied biological sciences. Psychology Geologic Sediments - chemistry Geological Phenomena Geology Heavy metals and As Industrial Waste Marine and brackish environment Metals, Heavy - adverse effects Metals, Heavy - analysis Natural water pollution Pollution Pollution, environment geology Population Dynamics Seawaters, estuaries Sedimentary record Soil and sediments pollution Spain Spain, Bilbao R Water treatment and pollution Zooplankton |
| title | Environmental transformation of the Bilbao estuary, N. Spain: microfaunal and geochemical proxies in the recent sedimentary record |
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