Download
bg-19-3897-2022.pdf 10,69MB
WeightNameValue
1000 Titel
  • Deposit-feeding of Nonionellina labradorica (foraminifera) from an Arctic methane seep site and possible association with a methanotroph
1000 Autor/in
  1. Schmidt, Christiane |
  2. Geslin, Emmanuelle |
  3. Bernhard, Joan M. |
  4. LeKieffre, Charlotte |
  5. Svenning, Mette Marianne |
  6. Roberge, Helene |
  7. Schweizer, Magali |
  8. Panieri, Giuliana |
1000 Erscheinungsjahr 2022
1000 LeibnizOpen
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2022-08-30
1000 Erschienen in
1000 Quellenangabe
  • 19(16):3897-3909
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2022
1000 Lizenz
1000 Verlagsversion
  • https://doi.org/10.5194/bg-19-3897-2022 |
1000 Ergänzendes Material
  • https://bg.copernicus.org/articles/19/3897/2022/bg-19-3897-2022-supplement.pdf |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • Several foraminifera are deposit feeders that consume organic detritus (dead particulate organic material with entrained bacteria). However, the role of such foraminifera in the benthic food web remains understudied. Foraminifera feeding on methanotrophic bacteria, which are 13C-depleted, may cause negative cytoplasmic and/or calcitic δ13C values. To test whether the foraminiferal diet includes methanotrophs, we performed a short-term (20 h) feeding experiment with Nonionellina labradorica from an active Arctic methane-emission site (Storfjordrenna, Barents Sea) using the marine methanotroph Methyloprofundus sedimenti and analysed N. labradorica cytology via transmission electron microscopy (TEM). We hypothesised that M. sedimenti would be visible post-experiment in degradation vacuoles, as evidenced by their ultrastructure. Sediment grains (mostly clay) occurred inside one or several degradation vacuoles in all foraminifers. In 24 % of the specimens from the feeding experiment degradation vacuoles also contained bacteria, although none could be confirmed to be the offered M. sedimenti. Observations of the apertural area after 20 h incubation revealed three putative methanotrophs, close to clay particles, based on bacterial ultrastructural characteristics. Furthermore, we noted the absence of bacterial endobionts in all examined N. labradorica but confirmed the presence of kleptoplasts, which were often partially degraded. In sum, we suggest that M. sedimenti can be consumed via untargeted grazing in seeps and that N. labradorica can be generally classified as a deposit feeder at this Arctic site.
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. https://frl.publisso.de/adhoc/uri/U2NobWlkdCwgQ2hyaXN0aWFuZQ==|https://frl.publisso.de/adhoc/uri/R2VzbGluLCBFbW1hbnVlbGxl|https://frl.publisso.de/adhoc/uri/QmVybmhhcmQsIEpvYW4gTS4=|https://frl.publisso.de/adhoc/uri/TGVLaWVmZnJlLCBDaGFybG90dGU=|https://frl.publisso.de/adhoc/uri/U3Zlbm5pbmcsIE1ldHRlIE1hcmlhbm5l|https://frl.publisso.de/adhoc/uri/Um9iZXJnZSwgSGVsZW5l|https://frl.publisso.de/adhoc/uri/U2Nod2VpemVyLCBNYWdhbGkg|https://frl.publisso.de/adhoc/uri/UGFuaWVyaSwgR2l1bGlhbmEg
1000 Label
1000 Förderer
  1. Agence Nationale de la Recherche |
  2. Norges Forskningsråd |
  3. NORCRUST |
  4. Deutsche Forschungsgemeinschaft |
  5. Leibniz-Gemeinschaft |
1000 Fördernummer
  1. -
  2. 223259
  3. 255250
  4. 444059848.
  5. -
1000 Förderprogramm
  1. MOPGA (Make our Planet Great Again)
  2. Centre for Arctic Gas Hydrate, Environment and Climate
  3. -
  4. -
  5. Open Access Fund
1000 Dateien
1000 Förderung
  1. 1000 joinedFunding-child
    1000 Förderer Agence Nationale de la Recherche |
    1000 Förderprogramm MOPGA (Make our Planet Great Again)
    1000 Fördernummer -
  2. 1000 joinedFunding-child
    1000 Förderer Norges Forskningsråd |
    1000 Förderprogramm Centre for Arctic Gas Hydrate, Environment and Climate
    1000 Fördernummer 223259
  3. 1000 joinedFunding-child
    1000 Förderer NORCRUST |
    1000 Förderprogramm -
    1000 Fördernummer 255250
  4. 1000 joinedFunding-child
    1000 Förderer Deutsche Forschungsgemeinschaft |
    1000 Förderprogramm -
    1000 Fördernummer 444059848.
  5. 1000 joinedFunding-child
    1000 Förderer Leibniz-Gemeinschaft |
    1000 Förderprogramm Open Access Fund
    1000 Fördernummer -
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6441229.rdf
1000 Erstellt am 2023-03-31T16:07:29.456+0200
1000 Erstellt von 218
1000 beschreibt frl:6441229
1000 Bearbeitet von 25
1000 Zuletzt bearbeitet Fri Apr 21 13:41:17 CEST 2023
1000 Objekt bearb. Fri Apr 21 08:31:27 CEST 2023
1000 Vgl. frl:6441229
1000 Oai Id
  1. oai:frl.publisso.de:frl:6441229 |
1000 Sichtbarkeit Metadaten public
1000 Sichtbarkeit Daten public
1000 Gegenstand von

View source