Increased eutrophication offshore Hong Kong, China during the past 75 years: Evidence from high-resolution sedimentary records
Total organic carbon (TOC), total nitrogen (TN), stable isotopes ( δ 13C and δ 15N), lipids and biogenic silica (BSi) from a high-resolution sediment core east of Hong Kong span the interval from 1925 to 2001. Organic matter (OM) within this core (E2) is derived from both marine phytoplankton and te...
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| Veröffentlicht in: | Marine chemistry 2008-05, Vol.110 (1), p.7-17 |
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| creator | Hu, Jianfang Zhang, Gan Li, Kechang Peng, Ping'an Chivas, Allan R. |
| description | Total organic carbon (TOC), total nitrogen (TN), stable isotopes (
δ
13C and
δ
15N), lipids and biogenic silica (BSi) from a high-resolution sediment core east of Hong Kong span the interval from 1925 to 2001. Organic matter (OM) within this core (E2) is derived from both marine phytoplankton and terrestrial material as deduced from the range of values of
δ
13C
org (−
24.0‰ to −
22.4‰) and
δ
15N (2.9‰ to 5.3‰) and lipid biomarkers. Diatom and dinoflagellate productivity which is reflected in the biogenic silica (BSi) and dinosterol concentrations respectively, increased gradually starting in 1940 and accelerated after 1965, especially between 1980 and 2000, indicating that algal blooms and/or red tides caused by eutrophication increased during this time. The abundance of coprostanol, which reflects domestic sewage discharge, and the terrestrial biomarkers (long-chain fatty acids and fatty alcohols and sitosterol) exhibit similar temporal changes with the primary production, showing that the enhanced eutrophication resulted from increased anthropogenic activities in the northern coastal waters of the South China Sea (SCS) in recent decades. |
| doi_str_mv | 10.1016/j.marchem.2008.02.001 |
| format | Article |
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δ
13C and
δ
15N), lipids and biogenic silica (BSi) from a high-resolution sediment core east of Hong Kong span the interval from 1925 to 2001. Organic matter (OM) within this core (E2) is derived from both marine phytoplankton and terrestrial material as deduced from the range of values of
δ
13C
org (−
24.0‰ to −
22.4‰) and
δ
15N (2.9‰ to 5.3‰) and lipid biomarkers. Diatom and dinoflagellate productivity which is reflected in the biogenic silica (BSi) and dinosterol concentrations respectively, increased gradually starting in 1940 and accelerated after 1965, especially between 1980 and 2000, indicating that algal blooms and/or red tides caused by eutrophication increased during this time. The abundance of coprostanol, which reflects domestic sewage discharge, and the terrestrial biomarkers (long-chain fatty acids and fatty alcohols and sitosterol) exhibit similar temporal changes with the primary production, showing that the enhanced eutrophication resulted from increased anthropogenic activities in the northern coastal waters of the South China Sea (SCS) in recent decades.</description><identifier>ISSN: 0304-4203</identifier><identifier>EISSN: 1872-7581</identifier><identifier>DOI: 10.1016/j.marchem.2008.02.001</identifier><identifier>CODEN: MRCHBD</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Bacillariophyceae ; Biogenic silica ; Coastal waters ; Earth sciences ; Earth, ocean, space ; Eutrophication ; Exact sciences and technology ; External geophysics ; Geochemistry ; High-resolution ; Lipids ; Marine ; Mineralogy ; Organic matter ; Physical and chemical properties of sea water ; Physics of the oceans ; Silicates ; South China Sea ; Water geochemistry</subject><ispartof>Marine chemistry, 2008-05, Vol.110 (1), p.7-17</ispartof><rights>2008 Elsevier B.V.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a393t-523f8cc3cbafab2ea3c1991b55c7ff471b73c068640b6ea2ba4313a455726c0d3</citedby><cites>FETCH-LOGICAL-a393t-523f8cc3cbafab2ea3c1991b55c7ff471b73c068640b6ea2ba4313a455726c0d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.marchem.2008.02.001$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20369628$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Hu, Jianfang</creatorcontrib><creatorcontrib>Zhang, Gan</creatorcontrib><creatorcontrib>Li, Kechang</creatorcontrib><creatorcontrib>Peng, Ping'an</creatorcontrib><creatorcontrib>Chivas, Allan R.</creatorcontrib><title>Increased eutrophication offshore Hong Kong, China during the past 75 years: Evidence from high-resolution sedimentary records</title><title>Marine chemistry</title><description>Total organic carbon (TOC), total nitrogen (TN), stable isotopes (
δ
13C and
δ
15N), lipids and biogenic silica (BSi) from a high-resolution sediment core east of Hong Kong span the interval from 1925 to 2001. Organic matter (OM) within this core (E2) is derived from both marine phytoplankton and terrestrial material as deduced from the range of values of
δ
13C
org (−
24.0‰ to −
22.4‰) and
δ
15N (2.9‰ to 5.3‰) and lipid biomarkers. Diatom and dinoflagellate productivity which is reflected in the biogenic silica (BSi) and dinosterol concentrations respectively, increased gradually starting in 1940 and accelerated after 1965, especially between 1980 and 2000, indicating that algal blooms and/or red tides caused by eutrophication increased during this time. The abundance of coprostanol, which reflects domestic sewage discharge, and the terrestrial biomarkers (long-chain fatty acids and fatty alcohols and sitosterol) exhibit similar temporal changes with the primary production, showing that the enhanced eutrophication resulted from increased anthropogenic activities in the northern coastal waters of the South China Sea (SCS) in recent decades.</description><subject>Bacillariophyceae</subject><subject>Biogenic silica</subject><subject>Coastal waters</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Eutrophication</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Geochemistry</subject><subject>High-resolution</subject><subject>Lipids</subject><subject>Marine</subject><subject>Mineralogy</subject><subject>Organic matter</subject><subject>Physical and chemical properties of sea water</subject><subject>Physics of the oceans</subject><subject>Silicates</subject><subject>South China Sea</subject><subject>Water geochemistry</subject><issn>0304-4203</issn><issn>1872-7581</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkM1u1DAQxy1EJZbCIyD5AicS_BE7CReEVoVWVOqlnK2JM268SuLFTirtqa_Cs_TJ8LIrrlxmpNH_Q_Mj5B1nJWdcf9qVE0Q74FQKxpqSiZIx_oJseFOLolYNf0k2TLKqqASTr8jrlHaMMS1VuyFPN7ONCAl7iusSw37wFhYfZhqcS0OISK_D_EB_5PGRbgc_A-3X6PNpGZDuIS20Vs-_DwgxfaZXj77H2SJ1MUx08A9DETGFcf0bmVv8hPMC8UAj2hD79IZcOBgTvj3vS_Lz29X99rq4vft-s_16W4Bs5VIoIV1jrbQdOOgEgrS8bXmnlK2dq2re1dIy3eiKdRpBdFBJLqFSqhbasl5ekg-n3H0Mv1ZMi5l8sjiOMGNYk-Ft0yjN6yxUJ6GNIaWIzuyjz3wPhjNzxG125ozbHHEbJkzGnX3vzwWQLIwuwmx9-mfO5HWrRZN1X046zN8-eowmWX9E1vuMZDF98P9p-gPLyZuI</recordid><startdate>20080516</startdate><enddate>20080516</enddate><creator>Hu, Jianfang</creator><creator>Zhang, Gan</creator><creator>Li, Kechang</creator><creator>Peng, Ping'an</creator><creator>Chivas, Allan R.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7TN</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>H96</scope><scope>H97</scope><scope>L.G</scope><scope>M7N</scope></search><sort><creationdate>20080516</creationdate><title>Increased eutrophication offshore Hong Kong, China during the past 75 years: Evidence from high-resolution sedimentary records</title><author>Hu, Jianfang ; Zhang, Gan ; Li, Kechang ; Peng, Ping'an ; Chivas, Allan R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a393t-523f8cc3cbafab2ea3c1991b55c7ff471b73c068640b6ea2ba4313a455726c0d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Bacillariophyceae</topic><topic>Biogenic silica</topic><topic>Coastal waters</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Eutrophication</topic><topic>Exact sciences and technology</topic><topic>External geophysics</topic><topic>Geochemistry</topic><topic>High-resolution</topic><topic>Lipids</topic><topic>Marine</topic><topic>Mineralogy</topic><topic>Organic matter</topic><topic>Physical and chemical properties of sea water</topic><topic>Physics of the oceans</topic><topic>Silicates</topic><topic>South China Sea</topic><topic>Water geochemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hu, Jianfang</creatorcontrib><creatorcontrib>Zhang, Gan</creatorcontrib><creatorcontrib>Li, Kechang</creatorcontrib><creatorcontrib>Peng, Ping'an</creatorcontrib><creatorcontrib>Chivas, Allan R.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Oceanic Abstracts</collection><collection>Water Resources 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) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><jtitle>Marine chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hu, Jianfang</au><au>Zhang, Gan</au><au>Li, Kechang</au><au>Peng, Ping'an</au><au>Chivas, Allan R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Increased eutrophication offshore Hong Kong, China during the past 75 years: Evidence from high-resolution sedimentary records</atitle><jtitle>Marine chemistry</jtitle><date>2008-05-16</date><risdate>2008</risdate><volume>110</volume><issue>1</issue><spage>7</spage><epage>17</epage><pages>7-17</pages><issn>0304-4203</issn><eissn>1872-7581</eissn><coden>MRCHBD</coden><abstract>Total organic carbon (TOC), total nitrogen (TN), stable isotopes (
δ
13C and
δ
15N), lipids and biogenic silica (BSi) from a high-resolution sediment core east of Hong Kong span the interval from 1925 to 2001. Organic matter (OM) within this core (E2) is derived from both marine phytoplankton and terrestrial material as deduced from the range of values of
δ
13C
org (−
24.0‰ to −
22.4‰) and
δ
15N (2.9‰ to 5.3‰) and lipid biomarkers. Diatom and dinoflagellate productivity which is reflected in the biogenic silica (BSi) and dinosterol concentrations respectively, increased gradually starting in 1940 and accelerated after 1965, especially between 1980 and 2000, indicating that algal blooms and/or red tides caused by eutrophication increased during this time. The abundance of coprostanol, which reflects domestic sewage discharge, and the terrestrial biomarkers (long-chain fatty acids and fatty alcohols and sitosterol) exhibit similar temporal changes with the primary production, showing that the enhanced eutrophication resulted from increased anthropogenic activities in the northern coastal waters of the South China Sea (SCS) in recent decades.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.marchem.2008.02.001</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0304-4203 |
| ispartof | Marine chemistry, 2008-05, Vol.110 (1), p.7-17 |
| issn | 0304-4203 1872-7581 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_19885617 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Bacillariophyceae Biogenic silica Coastal waters Earth sciences Earth, ocean, space Eutrophication Exact sciences and technology External geophysics Geochemistry High-resolution Lipids Marine Mineralogy Organic matter Physical and chemical properties of sea water Physics of the oceans Silicates South China Sea Water geochemistry |
| title | Increased eutrophication offshore Hong Kong, China during the past 75 years: Evidence from high-resolution sedimentary records |
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