Protists as a trophic link between picocyanobacteria and the filter-feeding bivalve Crassostrea gigas
Identifieur interne : 00C653 ( Main/Exploration ); précédent : 00C652; suivant : 00C654Protists as a trophic link between picocyanobacteria and the filter-feeding bivalve Crassostrea gigas
Auteurs : C. Dupuy [France] ; M. B. Hassen [France] ; S. Le Gall [France]Source :
- Bulletin de l'Institut océanographique : (Monaco) [ 0304-5722 ] ; 1999.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Oysters obtain energy resources by filtering microalgae (≅ 5 to 100 μm). However, picoplankters (< 2 μm) are not efficiently retained by oyster filtration. In some coastal oyster habitats, the phytoplanktonic production cannot entirely account for the requirements of oysters. In the turbid bay of Marennes-Oléron and in coastal oyster-rearing ponds (French Atlantic coast), the pelagic primary production is light or nutrient-limited. In Polynesian lagoons devoted to pearl oyster-rearing, more than 60% of the phytoplanktonic biomass and production comes from cyanobacteria, cells in a size-range unavailable for oysters. Protists, as both micro-sized cells and grazers of bacteria/cyanobacteria, may represent a major intermediary in trophic transfer between picoplankton and filter-feeding metazoa. In order to evaluate the importance of protists as food resource for oysters, we offered them a clonal population and a natural community of protists from a coastal pond. The ciliate Uronema was maintained on a cyanobacterial prey and labelled, using Synechococcus as an autofluorescent biomarker. We observed nearly 90% retention of protists and a significant ingestion of labelled ciliates by oysters, supporting the role of protists as a realistic trophic link between picoplankters and filter-feeding bivalves.
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 006103
- to stream PascalFrancis, to step Curation: 000067
- to stream PascalFrancis, to step Checkpoint: 005F28
- to stream Main, to step Merge: 00D641
- to stream Main, to step Curation: 00C653
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Protists as a trophic link between picocyanobacteria and the filter-feeding bivalve Crassostrea gigas</title><author><name sortKey="Dupuy, C" sort="Dupuy, C" uniqKey="Dupuy C" first="C." last="Dupuy">C. Dupuy</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>UMR 10, CREMA, BP 5</s1><s2>17137, L'Houmeau</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>L'Houmeau</wicri:noRegion><wicri:noRegion>BP 5</wicri:noRegion><wicri:noRegion>17137, L'Houmeau</wicri:noRegion></affiliation><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>LBBM, Université de La Rochelle, Pôle Science, Av. Marillac</s1><s2>17042 La Rochelle</s2><s3>FRA</s3><sZ>1 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>17042 La Rochelle</wicri:noRegion><wicri:noRegion>Av. Marillac</wicri:noRegion><wicri:noRegion>17042 La Rochelle</wicri:noRegion><orgName type="university">Université de La Rochelle</orgName><placeName><settlement type="city">La Rochelle</settlement><region type="region" nuts="2">Poitou-Charentes</region></placeName></affiliation></author><author><name sortKey="Hassen, M B" sort="Hassen, M B" uniqKey="Hassen M" first="M. B." last="Hassen">M. B. Hassen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>UMR 10, CREMA, BP 5</s1><s2>17137, L'Houmeau</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>L'Houmeau</wicri:noRegion><wicri:noRegion>BP 5</wicri:noRegion><wicri:noRegion>17137, L'Houmeau</wicri:noRegion></affiliation></author><author><name sortKey="Le Gall, S" sort="Le Gall, S" uniqKey="Le Gall S" first="S." last="Le Gall">S. Le Gall</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>UMR 10, CREMA, BP 5</s1><s2>17137, L'Houmeau</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>L'Houmeau</wicri:noRegion><wicri:noRegion>BP 5</wicri:noRegion><wicri:noRegion>17137, L'Houmeau</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">00-0054546</idno><date when="1999">1999</date><idno type="stanalyst">PASCAL 00-0054546 INIST</idno><idno type="RBID">Pascal:00-0054546</idno><idno type="wicri:Area/PascalFrancis/Corpus">006103</idno><idno type="wicri:Area/PascalFrancis/Curation">000067</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">005F28</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">005F28</idno><idno type="wicri:doubleKey">0304-5722:1999:Dupuy C:protists:as:a</idno><idno type="wicri:Area/Main/Merge">00D641</idno><idno type="wicri:Area/Main/Curation">00C653</idno><idno type="wicri:Area/Main/Exploration">00C653</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Protists as a trophic link between picocyanobacteria and the filter-feeding bivalve Crassostrea gigas</title><author><name sortKey="Dupuy, C" sort="Dupuy, C" uniqKey="Dupuy C" first="C." last="Dupuy">C. Dupuy</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>UMR 10, CREMA, BP 5</s1><s2>17137, L'Houmeau</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>L'Houmeau</wicri:noRegion><wicri:noRegion>BP 5</wicri:noRegion><wicri:noRegion>17137, L'Houmeau</wicri:noRegion></affiliation><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>LBBM, Université de La Rochelle, Pôle Science, Av. Marillac</s1><s2>17042 La Rochelle</s2><s3>FRA</s3><sZ>1 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>17042 La Rochelle</wicri:noRegion><wicri:noRegion>Av. Marillac</wicri:noRegion><wicri:noRegion>17042 La Rochelle</wicri:noRegion><orgName type="university">Université de La Rochelle</orgName><placeName><settlement type="city">La Rochelle</settlement><region type="region" nuts="2">Poitou-Charentes</region></placeName></affiliation></author><author><name sortKey="Hassen, M B" sort="Hassen, M B" uniqKey="Hassen M" first="M. B." last="Hassen">M. B. Hassen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>UMR 10, CREMA, BP 5</s1><s2>17137, L'Houmeau</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>L'Houmeau</wicri:noRegion><wicri:noRegion>BP 5</wicri:noRegion><wicri:noRegion>17137, L'Houmeau</wicri:noRegion></affiliation></author><author><name sortKey="Le Gall, S" sort="Le Gall, S" uniqKey="Le Gall S" first="S." last="Le Gall">S. Le Gall</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>UMR 10, CREMA, BP 5</s1><s2>17137, L'Houmeau</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>L'Houmeau</wicri:noRegion><wicri:noRegion>BP 5</wicri:noRegion><wicri:noRegion>17137, L'Houmeau</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Bulletin de l'Institut océanographique : (Monaco)</title><title level="j" type="abbreviated">Bull. Inst. océanogr. : (Monaco)</title><idno type="ISSN">0304-5722</idno><imprint><date when="1999">1999</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Bulletin de l'Institut océanographique : (Monaco)</title><title level="j" type="abbreviated">Bull. Inst. océanogr. : (Monaco)</title><idno type="ISSN">0304-5722</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bacterioplankton</term><term>Bacterivorous</term><term>Ciliata</term><term>Crassostrea gigas</term><term>Cyanobacteria</term><term>Feeding</term><term>Filter feeder animal</term><term>Food web</term><term>Predation</term><term>Trophic relation</term><term>Zooplankton</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Crassostrea gigas</term><term>Cyanobacteria</term><term>Bactérioplancton</term><term>Alimentation</term><term>Réseau trophique</term><term>Relation trophique</term><term>Prédation</term><term>Animal filtrant</term><term>Zooplancton</term><term>Ciliata</term><term>Bactérivore</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Oysters obtain energy resources by filtering microalgae (≅ 5 to 100 μm). However, picoplankters (< 2 μm) are not efficiently retained by oyster filtration. In some coastal oyster habitats, the phytoplanktonic production cannot entirely account for the requirements of oysters. In the turbid bay of Marennes-Oléron and in coastal oyster-rearing ponds (French Atlantic coast), the pelagic primary production is light or nutrient-limited. In Polynesian lagoons devoted to pearl oyster-rearing, more than 60% of the phytoplanktonic biomass and production comes from cyanobacteria, cells in a size-range unavailable for oysters. Protists, as both micro-sized cells and grazers of bacteria/cyanobacteria, may represent a major intermediary in trophic transfer between picoplankton and filter-feeding metazoa. In order to evaluate the importance of protists as food resource for oysters, we offered them a clonal population and a natural community of protists from a coastal pond. The ciliate Uronema was maintained on a cyanobacterial prey and labelled, using Synechococcus as an autofluorescent biomarker. We observed nearly 90% retention of protists and a significant ingestion of labelled ciliates by oysters, supporting the role of protists as a realistic trophic link between picoplankters and filter-feeding bivalves.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Poitou-Charentes</li></region><settlement><li>La Rochelle</li></settlement><orgName><li>Université de La Rochelle</li></orgName></list><tree><country name="France"><noRegion><name sortKey="Dupuy, C" sort="Dupuy, C" uniqKey="Dupuy C" first="C." last="Dupuy">C. Dupuy</name></noRegion><name sortKey="Dupuy, C" sort="Dupuy, C" uniqKey="Dupuy C" first="C." last="Dupuy">C. Dupuy</name><name sortKey="Hassen, M B" sort="Hassen, M B" uniqKey="Hassen M" first="M. B." last="Hassen">M. B. Hassen</name><name sortKey="Le Gall, S" sort="Le Gall, S" uniqKey="Le Gall S" first="S." last="Le Gall">S. Le Gall</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 00C653 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 00C653 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Asie
|area= AustralieFrV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= Pascal:00-0054546
|texte= Protists as a trophic link between picocyanobacteria and the filter-feeding bivalve Crassostrea gigas
}}
| This area was generated with Dilib version V0.6.33. |  |