Diatom fluxes in the NW Mediterranean: evidence from a 12-year sediment trap record and surficial sediments
Identifieur interne : 005023 ( Main/Exploration ); précédent : 005022; suivant : 005024Diatom fluxes in the NW Mediterranean: evidence from a 12-year sediment trap record and surficial sediments
Auteurs : Andrés S. Rigual-Hernandez [Espagne, Australie] ; María A. Barcena [Espagne] ; Richard W. Jordan [Japon] ; Francisco J. Sierro [Espagne] ; José A. Flores [Espagne] ; K. J. Sebastian Meier [Allemagne] ; Luc Beaufort [France] ; Serge Heussner [France]Source :
- Journal of plankton research [ 0142-7873 ] ; 2013.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Plancton.
English descriptors
Abstract
We examined the total diatom flux and species composition, total coccolith flux and total mass flux collected with a sediment trap between October 1993 and January 2006 in the northeastern entrance of the Gulf of Lions (North Western Mediterranean). The average daily diatom and coccolith fluxes (3 × 107 valves m2 d- 1 and 6.1 x 108 coccoliths m2 day-1, respectively) are comparable in magnitude with previously reported data sets in other high productivity areas of the Western Mediterranean. The temporal particle flux pattern reflected the variations in surface oceanographic conditions and primary productivity, which showed strong annual cycling. Highest diatom, coccolith and total mass fluxes always occurred during the winter-spring transition, while minima were observed during summer. Changes in the diverse diatom communities reflected the water column conditions throughout the record. The intensity of the diatom winter-spring blooms seemed to be enhanced in those years with intense and cold winds during winter, whereas years with low winter wind stress were liable to be less productive for diatoms. Coccolith fluxes exhibited a more stable interannual pattern than diatom fluxes. Significant discrepancies were found between the sediment trap and surficial sediment diatom assemblages.
Affiliations:
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Rigual-Hernandez</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>AREA DE PALEONTOLOGÍA, DEPARTMENTO DE GEOLOGÍA, UNIVERSIDAD DE SALAMANCA</s1><s2>SALAMANCA 37008</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Castille-et-León</region></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>CLIMATE FUTURES AT MACQUARIE - DEPARTMENT OF BIOLOGICAL SCIENCES MACQUARIE UNIVERSITY NORTH RYDE</s1><s2>SYDNEY, NSW 2109</s2><s3>AUS</s3><sZ>1 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>CLIMATE FUTURES AT MACQUARIE - DEPARTMENT OF BIOLOGICAL SCIENCES MACQUARIE UNIVERSITY NORTH RYDE</wicri:noRegion></affiliation></author><author><name sortKey="Barcena, Maria A" sort="Barcena, Maria A" uniqKey="Barcena M" first="María A." last="Barcena">María A. 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J." last="Sebastian Meier">K. J. 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Rigual-Hernandez</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>AREA DE PALEONTOLOGÍA, DEPARTMENTO DE GEOLOGÍA, UNIVERSIDAD DE SALAMANCA</s1><s2>SALAMANCA 37008</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Castille-et-León</region></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>CLIMATE FUTURES AT MACQUARIE - DEPARTMENT OF BIOLOGICAL SCIENCES MACQUARIE UNIVERSITY NORTH RYDE</s1><s2>SYDNEY, NSW 2109</s2><s3>AUS</s3><sZ>1 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>CLIMATE FUTURES AT MACQUARIE - DEPARTMENT OF BIOLOGICAL SCIENCES MACQUARIE UNIVERSITY NORTH RYDE</wicri:noRegion></affiliation></author><author><name sortKey="Barcena, Maria A" sort="Barcena, Maria A" uniqKey="Barcena M" first="María A." last="Barcena">María A. Barcena</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>AREA DE PALEONTOLOGÍA, DEPARTMENTO DE GEOLOGÍA, UNIVERSIDAD DE SALAMANCA</s1><s2>SALAMANCA 37008</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Castille-et-León</region></placeName></affiliation></author><author><name sortKey="Jordan, Richard W" sort="Jordan, Richard W" uniqKey="Jordan R" first="Richard W." last="Jordan">Richard W. Jordan</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>DEPARTMENT OF EARTH & ENVIRONMENTAL SCIENCES, FACULTY OF SCIENCE, YAMAGATA UNIVERSITY</s1><s2>YAMAGATA 990 8560</s2><s3>JPN</s3><sZ>3 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>YAMAGATA 990 8560</wicri:noRegion></affiliation></author><author><name sortKey="Sierro, Francisco J" sort="Sierro, Francisco J" uniqKey="Sierro F" first="Francisco J." last="Sierro">Francisco J. Sierro</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>AREA DE PALEONTOLOGÍA, DEPARTMENTO DE GEOLOGÍA, UNIVERSIDAD DE SALAMANCA</s1><s2>SALAMANCA 37008</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Castille-et-León</region></placeName></affiliation></author><author><name sortKey="Flores, Jose A" sort="Flores, Jose A" uniqKey="Flores J" first="José A." last="Flores">José A. Flores</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>AREA DE PALEONTOLOGÍA, DEPARTMENTO DE GEOLOGÍA, UNIVERSIDAD DE SALAMANCA</s1><s2>SALAMANCA 37008</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Castille-et-León</region></placeName></affiliation></author><author><name sortKey="Sebastian Meier, K J" sort="Sebastian Meier, K J" uniqKey="Sebastian Meier K" first="K. J." last="Sebastian Meier">K. J. Sebastian Meier</name><affiliation wicri:level="3"><inist:fA14 i1="04"><s1>CHRISTIAN-ALBRECHTS-UNIVERSITÄT INSTITUT FÜR, GEOWISSENSCHAFTEN LUDEWIG-MEYN-STR. 10</s1><s2>KIEL 24118</s2><s3>DEU</s3><sZ>6 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="2">Schleswig-Holstein</region><settlement type="city">Kiel</settlement></placeName></affiliation></author><author><name sortKey="Beaufort, Luc" sort="Beaufort, Luc" uniqKey="Beaufort L" first="Luc" last="Beaufort">Luc Beaufort</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>CNRS-UNIVERSITÉ AIX-MARSEILLE III, CEREGE, EUROPÔLE DE L'ARBOIS, BP 80</s1><s2>AIX-EN-PROVENCE 13545</s2><s3>FRA</s3><sZ>7 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>13545</wicri:noRegion><wicri:noRegion>BP 80</wicri:noRegion><wicri:noRegion>AIX-EN-PROVENCE 13545</wicri:noRegion></affiliation></author><author><name sortKey="Heussner, Serge" sort="Heussner, Serge" uniqKey="Heussner S" first="Serge" last="Heussner">Serge Heussner</name><affiliation wicri:level="1"><inist:fA14 i1="06"><s1>CEFREM, UMR 5110 CNRS - UNIVERSITY OF PERPIGNAN VIA DOMITIA, 52 AVENUE PAUL ALDUY</s1><s2>PERPIGNAN 66860</s2><s3>FRA</s3><sZ>8 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>66860</wicri:noRegion><wicri:noRegion>52 AVENUE PAUL ALDUY</wicri:noRegion><wicri:noRegion>PERPIGNAN 66860</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Journal of plankton research</title><title level="j" type="abbreviated">J. plankton res.</title><idno type="ISSN">0142-7873</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of plankton research</title><title level="j" type="abbreviated">J. plankton res.</title><idno type="ISSN">0142-7873</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bacillariophyta</term><term>Mediterranean region</term><term>Plankton</term><term>Sediment trap</term><term>Sediments</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Piège sédiment</term><term>Sédiment</term><term>Plancton</term><term>Région méditerranéenne</term><term>Bacillariophyta</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Plancton</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We examined the total diatom flux and species composition, total coccolith flux and total mass flux collected with a sediment trap between October 1993 and January 2006 in the northeastern entrance of the Gulf of Lions (North Western Mediterranean). The average daily diatom and coccolith fluxes (3 × 10<sup>7</sup> valves m<sup>2</sup> d<sup>-</sup> <sup>1 </sup>and 6.1 x 10<sup>8</sup> coccoliths m<sup>2</sup> day<sup>-1</sup>, respectively) are comparable in magnitude with previously reported data sets in other high productivity areas of the Western Mediterranean. The temporal particle flux pattern reflected the variations in surface oceanographic conditions and primary productivity, which showed strong annual cycling. Highest diatom, coccolith and total mass fluxes always occurred during the winter-spring transition, while minima were observed during summer. Changes in the diverse diatom communities reflected the water column conditions throughout the record. The intensity of the diatom winter-spring blooms seemed to be enhanced in those years with intense and cold winds during winter, whereas years with low winter wind stress were liable to be less productive for diatoms. Coccolith fluxes exhibited a more stable interannual pattern than diatom fluxes. Significant discrepancies were found between the sediment trap and surficial sediment diatom assemblages.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Australie</li><li>Espagne</li><li>France</li><li>Japon</li></country><region><li>Castille-et-León</li><li>Schleswig-Holstein</li></region><settlement><li>Kiel</li></settlement></list><tree><country name="Espagne"><region name="Castille-et-León"><name sortKey="Rigual Hernandez, Andres S" sort="Rigual Hernandez, Andres S" uniqKey="Rigual Hernandez A" first="Andrés S." last="Rigual-Hernandez">Andrés S. Rigual-Hernandez</name></region><name sortKey="Barcena, Maria A" sort="Barcena, Maria A" uniqKey="Barcena M" first="María A." last="Barcena">María A. Barcena</name><name sortKey="Flores, Jose A" sort="Flores, Jose A" uniqKey="Flores J" first="José A." last="Flores">José A. Flores</name><name sortKey="Sierro, Francisco J" sort="Sierro, Francisco J" uniqKey="Sierro F" first="Francisco J." last="Sierro">Francisco J. Sierro</name></country><country name="Australie"><noRegion><name sortKey="Rigual Hernandez, Andres S" sort="Rigual Hernandez, Andres S" uniqKey="Rigual Hernandez A" first="Andrés S." last="Rigual-Hernandez">Andrés S. Rigual-Hernandez</name></noRegion></country><country name="Japon"><noRegion><name sortKey="Jordan, Richard W" sort="Jordan, Richard W" uniqKey="Jordan R" first="Richard W." last="Jordan">Richard W. Jordan</name></noRegion></country><country name="Allemagne"><region name="Schleswig-Holstein"><name sortKey="Sebastian Meier, K J" sort="Sebastian Meier, K J" uniqKey="Sebastian Meier K" first="K. J." last="Sebastian Meier">K. J. Sebastian Meier</name></region></country><country name="France"><noRegion><name sortKey="Beaufort, Luc" sort="Beaufort, Luc" uniqKey="Beaufort L" first="Luc" last="Beaufort">Luc Beaufort</name></noRegion><name sortKey="Heussner, Serge" sort="Heussner, Serge" uniqKey="Heussner S" first="Serge" last="Heussner">Serge Heussner</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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