Effects of temperature on in vitro sediment reworking processes by a gallery biodiffusor, the polychaete Neanthes virens
Identifieur interne : 000353 ( France/Analysis ); précédent : 000352; suivant : 000354Effects of temperature on in vitro sediment reworking processes by a gallery biodiffusor, the polychaete Neanthes virens
Auteurs : Daniel Ouellette [Canada] ; Gaston Desrosiers [Canada] ; Jean-Pierre Gagne [Canada] ; Franck Gilbert [France] ; Jean-Christophe Poggiale [France] ; Pierre U. Blier [Canada] ; Georges Stora [France]Source :
- Marine Ecology Progress Series [ 0171-8630 ] ; 2004.
English descriptors
Abstract
Temperature-induced variations in bioturbation could affect sediment mixing processes in the marine benthic environment. In this study, sediment reworking by Neanthes virens (Sars), a widely distributed polychaete in muddy sand communities of northern temperate latitudes, was studied under different temperature conditions representing winter (1°C), spring and fall (6°C), summer(13°C), and tide pool (18°C) temperatures in the lower St. Lawrence Estuary, Québec, Canada. Sediment reworking was quantified using inert fluorescent particles (luminophores) deposited at the sediment surface. Based on the 1-D luminophore distributions obtained after 5 and 30 d, the use of the specific 'gallery-biodiffusor' model allowed us to quantify both biodiffusion (Db) and biotransport (Vb) due to the organisms. Our results showed temperature effects on sediment transport. The lowest biotransport and biodiffusion coefficients were measured at 1 and 6°C and did not change with time. The highest biodiffusion occurred at 13°C for both sampling periods. At 18°C, biodiffusion was intermediate while biotransport was maximal. Differences between the 13°C biodiffusive transport and the other temperatures increased with time. Low transport values at 1 and 6°C suggest that a quiescent stage exists for this species at these temperatures, with sediment mixing occurring mostly during burrow construction. On the other hand, sediment mixing resulted from both the burrow construction and maintenance phases at higher temperatures (13 and 18°C).
Url:
DOI: 10.3354/meps266185
Affiliations:
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Hal:hal-00758611Le document en format XML
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<date type="start">2007-04-19</date>
<desc> <address> <addrLine>INSU-CNRS3 rue Michel-Ange, 75794 Paris Cedex 16</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.insu.cnrs.fr/</ref>
</desc>
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<tutelle name="UMR6535" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"> <idno type="IdRef">02636817X</idno>
<idno type="ISNI">0000000122597504</idno>
<orgName>Centre National de la Recherche Scientifique</orgName>
<orgName type="acronym">CNRS</orgName>
<date type="start">1939-10-19</date>
<desc> <address> <country key="FR"></country>
</address>
<ref type="url">http://www.cnrs.fr/</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Blier, Pierre U" sort="Blier, Pierre U" uniqKey="Blier P" first="Pierre U." last="Blier">Pierre U. Blier</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-355710" status="VALID"> <orgName>Université du Québec à Rimouski</orgName>
<orgName type="acronym">UQAR</orgName>
<desc> <address> <addrLine>300 allée des Ursulines, Rimouski (Québec) G5L 3A1</addrLine>
<country key="CA"></country>
</address>
<ref type="url">http://www.uqar.ca/</ref>
</desc>
</hal:affiliation>
<country>Canada</country>
</affiliation>
</author>
<author><name sortKey="Stora, Georges" sort="Stora, Georges" uniqKey="Stora G" first="Georges" last="Stora">Georges Stora</name>
<affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-917" status="OLD"> <orgName>Laboratoire d'océanographie et de biogéochimie</orgName>
<orgName type="acronym">LOB</orgName>
<desc> <address> <addrLine>Campus de Luminy - case 901 13288 MARSEILLE CEDEX 09</addrLine>
<country key="FR"></country>
</address>
</desc>
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<tutelles><tutelle active="#struct-5033" type="direct"><org type="institution" xml:id="struct-5033" status="OLD"> <idno type="IdRef">026402882</idno>
<orgName>Université de la Méditerranée - Aix-Marseille 2</orgName>
<date type="start">1969</date>
<date type="end">2011</date>
<desc> <address> <addrLine>58, boulevard Charles Livon - 13284 Marseille cedex 07</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univmed.fr/</ref>
</desc>
</org>
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<tutelle active="#struct-300045" type="direct"><org type="institution" xml:id="struct-300045" status="VALID"> <idno type="IdRef">029349265</idno>
<idno type="ISNI">0000 0001 2154 1736 </idno>
<orgName>Institut national des sciences de l'Univers</orgName>
<orgName type="acronym">INSU - CNRS</orgName>
<date type="start">2007-04-19</date>
<desc> <address> <addrLine>INSU-CNRS3 rue Michel-Ange, 75794 Paris Cedex 16</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.insu.cnrs.fr/</ref>
</desc>
</org>
</tutelle>
<tutelle name="UMR6535" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"> <idno type="IdRef">02636817X</idno>
<idno type="ISNI">0000000122597504</idno>
<orgName>Centre National de la Recherche Scientifique</orgName>
<orgName type="acronym">CNRS</orgName>
<date type="start">1939-10-19</date>
<desc> <address> <country key="FR"></country>
</address>
<ref type="url">http://www.cnrs.fr/</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
</affiliation>
</author>
</analytic>
<idno type="DOI">10.3354/meps266185</idno>
<series><title level="j">Marine Ecology Progress Series</title>
<idno type="ISSN">0171-8630</idno>
<imprint><date type="datePub">2004</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>Bioturbation</term>
<term>Functional groups</term>
<term>Inert tracers</term>
<term>Neanthes virens</term>
<term>Temperature</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en"> <p>Temperature-induced variations in bioturbation could affect sediment mixing processes in the marine benthic environment. In this study, sediment reworking by Neanthes virens (Sars), a widely distributed polychaete in muddy sand communities of northern temperate latitudes, was studied under different temperature conditions representing winter (1°C), spring and fall (6°C), summer(13°C), and tide pool (18°C) temperatures in the lower St. Lawrence Estuary, Québec, Canada. Sediment reworking was quantified using inert fluorescent particles (luminophores) deposited at the sediment surface. Based on the 1-D luminophore distributions obtained after 5 and 30 d, the use of the specific 'gallery-biodiffusor' model allowed us to quantify both biodiffusion (Db) and biotransport (Vb) due to the organisms. Our results showed temperature effects on sediment transport. The lowest biotransport and biodiffusion coefficients were measured at 1 and 6°C and did not change with time. The highest biodiffusion occurred at 13°C for both sampling periods. At 18°C, biodiffusion was intermediate while biotransport was maximal. Differences between the 13°C biodiffusive transport and the other temperatures increased with time. Low transport values at 1 and 6°C suggest that a quiescent stage exists for this species at these temperatures, with sediment mixing occurring mostly during burrow construction. On the other hand, sediment mixing resulted from both the burrow construction and maintenance phases at higher temperatures (13 and 18°C).</p>
</div>
</front>
</TEI>
<affiliations><list><country><li>Canada</li>
<li>France</li>
</country>
</list>
<tree><country name="Canada"><noRegion><name sortKey="Ouellette, Daniel" sort="Ouellette, Daniel" uniqKey="Ouellette D" first="Daniel" last="Ouellette">Daniel Ouellette</name>
</noRegion>
<name sortKey="Blier, Pierre U" sort="Blier, Pierre U" uniqKey="Blier P" first="Pierre U." last="Blier">Pierre U. Blier</name>
<name sortKey="Desrosiers, Gaston" sort="Desrosiers, Gaston" uniqKey="Desrosiers G" first="Gaston" last="Desrosiers">Gaston Desrosiers</name>
<name sortKey="Gagne, Jean Pierre" sort="Gagne, Jean Pierre" uniqKey="Gagne J" first="Jean-Pierre" last="Gagne">Jean-Pierre Gagne</name>
</country>
<country name="France"><noRegion><name sortKey="Gilbert, Franck" sort="Gilbert, Franck" uniqKey="Gilbert F" first="Franck" last="Gilbert">Franck Gilbert</name>
</noRegion>
<name sortKey="Poggiale, Jean Christophe" sort="Poggiale, Jean Christophe" uniqKey="Poggiale J" first="Jean-Christophe" last="Poggiale">Jean-Christophe Poggiale</name>
<name sortKey="Stora, Georges" sort="Stora, Georges" uniqKey="Stora G" first="Georges" last="Stora">Georges Stora</name>
</country>
</tree>
</affiliations>
</record>
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