Distribution and microbial metabolism of dimethylsulfoniopropionate and dimethylsulfide during the 2007 Arctic ice minimum
Identifieur interne : 001862 ( Main/Exploration ); précédent : 001861; suivant : 001863Distribution and microbial metabolism of dimethylsulfoniopropionate and dimethylsulfide during the 2007 Arctic ice minimum
Auteurs : M. Luce [Canada] ; M. Levasseur [Canada] ; M. G. Scarratt [Canada] ; S. Michaud [Canada] ; S. Royer [Canada] ; R. Kiene [États-Unis] ; C. Lovejoy [Canada] ; M. Gosselin [Canada] ; M. Poulin [Canada] ; Y. Gratton [Canada] ; M. Lizotte [Canada]Source :
- Journal of Geophysical Research: Oceans [ 0148-0227 ] ; 2011-09.
Abstract
The distribution and biological cycling of the climate active trace gas dimethylsulfide (DMS) and its algal precursor dimethylsulfoniopropionate (DMSP) were characterized at 20 stations across the Canadian High Arctic during fall 2007. Transformation rates of DMSP and production rates of DMS from dissolved DMSP (DMSPd) were measured during 3 h onboard incubations with radioactively labeled 35S‐DMSP. Particulate DMSP (DMSPp) in surface waters varied between 2 and 39 nmol L−1 and increased with chlorophyll a (Chl a) concentrations (r = 0.84). DMS concentrations in surface waters ranged from 0.05 to 0.8 nmol L−1 and were positively correlated with DMSPp (r = 0.89) and Chl a (r = 0.74). The DMSPd loss rate constant varied from 0.01 to 0.14 h−1 and was also positively correlated with Chl a concentrations (r = 0.67). The turnover time of the DMSPd pool varied between 0.3 and 3.4 days (mean = 0.96 day). Bacterial DMS production varied between 0.01 and 0.51 nmol L−1 d−1 (mean = 0.14 nmol L−1 d−1). Assuming local steady state conditions at the time scale of a day, the turnover time of the DMS pool based only on production from DMSPd was ∼6 days at the sampling stations. This long turnover time suggests that DMS production was dominated by nonbacterial processes during our study. Our results show that DMS production could persist at low rates in late fall under ice‐free conditions. The magnitude of this production appears to be limited by the low algal and bacterial production prevailing at that time.
Url:
DOI: 10.1029/2010JC006914
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001228
- to stream Istex, to step Curation: 001228
- to stream Istex, to step Checkpoint: 000447
- to stream Main, to step Merge: 001940
- to stream Main, to step Curation: 001862
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Distribution and microbial metabolism of dimethylsulfoniopropionate and dimethylsulfide during the 2007 Arctic ice minimum</title><author><name sortKey="Luce, M" sort="Luce, M" uniqKey="Luce M" first="M." last="Luce">M. Luce</name></author><author><name sortKey="Levasseur, M" sort="Levasseur, M" uniqKey="Levasseur M" first="M." last="Levasseur">M. Levasseur</name></author><author><name sortKey="Scarratt, M G" sort="Scarratt, M G" uniqKey="Scarratt M" first="M. G." last="Scarratt">M. G. Scarratt</name></author><author><name sortKey="Michaud, S" sort="Michaud, S" uniqKey="Michaud S" first="S." last="Michaud">S. Michaud</name></author><author><name sortKey="Royer, S" sort="Royer, S" uniqKey="Royer S" first="S." last="Royer">S. Royer</name></author><author><name sortKey="Kiene, R" sort="Kiene, R" uniqKey="Kiene R" first="R." last="Kiene">R. Kiene</name></author><author><name sortKey="Lovejoy, C" sort="Lovejoy, C" uniqKey="Lovejoy C" first="C." last="Lovejoy">C. Lovejoy</name></author><author><name sortKey="Gosselin, M" sort="Gosselin, M" uniqKey="Gosselin M" first="M." last="Gosselin">M. Gosselin</name></author><author><name sortKey="Poulin, M" sort="Poulin, M" uniqKey="Poulin M" first="M." last="Poulin">M. Poulin</name></author><author><name sortKey="Gratton, Y" sort="Gratton, Y" uniqKey="Gratton Y" first="Y." last="Gratton">Y. Gratton</name></author><author><name sortKey="Lizotte, M" sort="Lizotte, M" uniqKey="Lizotte M" first="M." last="Lizotte">M. Lizotte</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:7479D080842B2083A8DED6B53F265256D569A30D</idno><date when="2011" year="2011">2011</date><idno type="doi">10.1029/2010JC006914</idno><idno type="url">https://api-v5.istex.fr/document/7479D080842B2083A8DED6B53F265256D569A30D/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001228</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001228</idno><idno type="wicri:Area/Istex/Curation">001228</idno><idno type="wicri:Area/Istex/Checkpoint">000447</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000447</idno><idno type="wicri:doubleKey">0148-0227:2011:Luce M:distribution:and:microbial</idno><idno type="wicri:Area/Main/Merge">001940</idno><idno type="wicri:Area/Main/Curation">001862</idno><idno type="wicri:Area/Main/Exploration">001862</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Distribution and microbial metabolism of dimethylsulfoniopropionate and dimethylsulfide during the 2007 Arctic ice minimum</title><author><name sortKey="Luce, M" sort="Luce, M" uniqKey="Luce M" first="M." last="Luce">M. Luce</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Département de Biologie, Québec‐Océan, Université Laval, Quebec City, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author><author><name sortKey="Levasseur, M" sort="Levasseur, M" uniqKey="Levasseur M" first="M." last="Levasseur">M. Levasseur</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Département de Biologie, Québec‐Océan, Université Laval, Quebec City, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Canada</country></affiliation></author><author><name sortKey="Scarratt, M G" sort="Scarratt, M G" uniqKey="Scarratt M" first="M. G." last="Scarratt">M. G. Scarratt</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Maurice Lamontagne Institute, Fisheries and Oceans Canada, Mont‐Joli, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author><author><name sortKey="Michaud, S" sort="Michaud, S" uniqKey="Michaud S" first="S." last="Michaud">S. Michaud</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Maurice Lamontagne Institute, Fisheries and Oceans Canada, Mont‐Joli, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author><author><name sortKey="Royer, S" sort="Royer, S" uniqKey="Royer S" first="S." last="Royer">S. Royer</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Département de Biologie, Québec‐Océan, Université Laval, Quebec City, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author><author><name sortKey="Kiene, R" sort="Kiene, R" uniqKey="Kiene R" first="R." last="Kiene">R. Kiene</name><affiliation wicri:level="1"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Marine Sciences, University of South Alabama, Alabama, Mobile</wicri:regionArea><wicri:noRegion>Mobile</wicri:noRegion></affiliation></author><author><name sortKey="Lovejoy, C" sort="Lovejoy, C" uniqKey="Lovejoy C" first="C." last="Lovejoy">C. Lovejoy</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Département de Biologie, Québec‐Océan, Université Laval, Quebec City, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author><author><name sortKey="Gosselin, M" sort="Gosselin, M" uniqKey="Gosselin M" first="M." last="Gosselin">M. Gosselin</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Institut des Sciences de la Mer de Rimouski, Université du Québec à Rimouski, Rimouski, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author><author><name sortKey="Poulin, M" sort="Poulin, M" uniqKey="Poulin M" first="M." last="Poulin">M. Poulin</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Research Division, Canadian Museum of Nature, Ottawa, Ontario</wicri:regionArea><wicri:noRegion>Ontario</wicri:noRegion></affiliation></author><author><name sortKey="Gratton, Y" sort="Gratton, Y" uniqKey="Gratton Y" first="Y." last="Gratton">Y. Gratton</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Centre Eau Terre Environnement, Institut National de la Recherche Scientifique, Quebec City, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author><author><name sortKey="Lizotte, M" sort="Lizotte, M" uniqKey="Lizotte M" first="M." last="Lizotte">M. Lizotte</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Département de Biologie, Québec‐Océan, Université Laval, Quebec City, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Geophysical Research: Oceans</title><title level="j" type="abbrev">J. Geophys. Res.</title><idno type="ISSN">0148-0227</idno><idno type="eISSN">2156-2202</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2011-09">2011-09</date><biblScope unit="volume">116</biblScope><biblScope unit="issue">C9</biblScope><biblScope unit="page" from="/">n/a</biblScope><biblScope unit="page" to="/">n/a</biblScope></imprint><idno type="ISSN">0148-0227</idno></series><idno type="istex">7479D080842B2083A8DED6B53F265256D569A30D</idno><idno type="DOI">10.1029/2010JC006914</idno><idno type="ArticleID">2010JC006914</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0148-0227</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">The distribution and biological cycling of the climate active trace gas dimethylsulfide (DMS) and its algal precursor dimethylsulfoniopropionate (DMSP) were characterized at 20 stations across the Canadian High Arctic during fall 2007. Transformation rates of DMSP and production rates of DMS from dissolved DMSP (DMSPd) were measured during 3 h onboard incubations with radioactively labeled 35S‐DMSP. Particulate DMSP (DMSPp) in surface waters varied between 2 and 39 nmol L−1 and increased with chlorophyll a (Chl a) concentrations (r = 0.84). DMS concentrations in surface waters ranged from 0.05 to 0.8 nmol L−1 and were positively correlated with DMSPp (r = 0.89) and Chl a (r = 0.74). The DMSPd loss rate constant varied from 0.01 to 0.14 h−1 and was also positively correlated with Chl a concentrations (r = 0.67). The turnover time of the DMSPd pool varied between 0.3 and 3.4 days (mean = 0.96 day). Bacterial DMS production varied between 0.01 and 0.51 nmol L−1 d−1 (mean = 0.14 nmol L−1 d−1). Assuming local steady state conditions at the time scale of a day, the turnover time of the DMS pool based only on production from DMSPd was ∼6 days at the sampling stations. This long turnover time suggests that DMS production was dominated by nonbacterial processes during our study. Our results show that DMS production could persist at low rates in late fall under ice‐free conditions. The magnitude of this production appears to be limited by the low algal and bacterial production prevailing at that time.</div></front></TEI><affiliations><list><country><li>Canada</li><li>États-Unis</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Luce, M" sort="Luce, M" uniqKey="Luce M" first="M." last="Luce">M. Luce</name></noRegion><name sortKey="Gosselin, M" sort="Gosselin, M" uniqKey="Gosselin M" first="M." last="Gosselin">M. Gosselin</name><name sortKey="Gratton, Y" sort="Gratton, Y" uniqKey="Gratton Y" first="Y." last="Gratton">Y. Gratton</name><name sortKey="Levasseur, M" sort="Levasseur, M" uniqKey="Levasseur M" first="M." last="Levasseur">M. Levasseur</name><name sortKey="Levasseur, M" sort="Levasseur, M" uniqKey="Levasseur M" first="M." last="Levasseur">M. Levasseur</name><name sortKey="Lizotte, M" sort="Lizotte, M" uniqKey="Lizotte M" first="M." last="Lizotte">M. Lizotte</name><name sortKey="Lovejoy, C" sort="Lovejoy, C" uniqKey="Lovejoy C" first="C." last="Lovejoy">C. Lovejoy</name><name sortKey="Michaud, S" sort="Michaud, S" uniqKey="Michaud S" first="S." last="Michaud">S. Michaud</name><name sortKey="Poulin, M" sort="Poulin, M" uniqKey="Poulin M" first="M." last="Poulin">M. Poulin</name><name sortKey="Royer, S" sort="Royer, S" uniqKey="Royer S" first="S." last="Royer">S. Royer</name><name sortKey="Scarratt, M G" sort="Scarratt, M G" uniqKey="Scarratt M" first="M. G." last="Scarratt">M. G. Scarratt</name></country><country name="États-Unis"><noRegion><name sortKey="Kiene, R" sort="Kiene, R" uniqKey="Kiene R" first="R." last="Kiene">R. Kiene</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Canada/explor/ParkinsonCanadaV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001862 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 001862 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Canada
|area= ParkinsonCanadaV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:7479D080842B2083A8DED6B53F265256D569A30D
|texte= Distribution and microbial metabolism of dimethylsulfoniopropionate and dimethylsulfide during the 2007 Arctic ice minimum
}}
| This area was generated with Dilib version V0.6.29. |  |