{"refrec":{"BRefID":336986,"RR":"<b>Gründger, F.; Probandt, D.; Knittel, K.; Carrier, V.; Kalenitchenko, D.; Silyakova, A.; Serov, P.; Ferré, B.; Svenning, M.M.; Niemann, H.</b> (2021). Seasonal shifts of microbial methane oxidation in Arctic shelf waters above gas seeps. <i>Limnol. Oceanogr. 66(5)</i>: 1896-1914. <a href=\"https://doi.org/10.1002/lno.11731\" target=\"_blank\">https://doi.org/10.1002/lno.11731</a>","BEntID":333608,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Limnol. Oceanogr. 66(5)</i>: 1896-1914. <a href=\"https://doi.org/10.1002/lno.11731\" target=\"_blank\">https://doi.org/10.1002/lno.11731</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Gründger, F.; Probandt, D.; Knittel, K.; Carrier, V.; Kalenitchenko, D.; Silyakova, A.; Serov, P.; Ferré, B.; Svenning, M.M.; Niemann, H.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Gründger, F. <i>et al.</i>","Englishabstract":"The Arctic Ocean subseabed holds vast reservoirs of the potent greenhouse    gas methane (CH<sub>4</sub>), often seeping into the ocean water column. In    a continuously warming ocean as a result of climate change an increase ofCH<sub>4</sub> seepage from the seabed is hypothesized. Today, CH    <sub>4</sub> is largely retained in the water column due to the activity of    methane‐oxidizing bacteria (MOB) that thrive there. Predicted future    oceanographic changes, bottom water warming and increasing CH<sub>4</sub>    release may alter efficacy of this microbially mediated CH<sub>4</sub>    sink. Here we investigate the composition and principle controls on    abundance and activity of the MOB communities at the shallow continental    shelf west of Svalbard, which is subject to strong seasonal changes in    oceanographic conditions. Covering a large area (364 km<sup>2</sup>), we    measured vertical distribution of microbial methane oxidation (MOx) rates,    MOB community composition, dissolved CH<sub>4</sub> concentrations,    temperature and salinity four times throughout spring and summer during    three consecutive years. Sequencing analyses of the <i>pmoA</i> gene    revealed a small, relatively uniform community mainly composed of type‐Iamethanotrophs (deep‐sea 3 clade). We found highest MOx rates (7 nM d    <sup>−1</sup>) in summer in bathymetric depressions filled with stagnantAtlantic Water containing moderate concentrations of dissolved CH    <sub>4</sub> (< 100 nM). MOx rates in these depressions during spring    were much lower (< 0.5 nM d<sup>−1</sup>) due to lower temperatures and    mixing of Transformed Atlantic Water flushing MOB with the Atlantic Water    out of the depressions. Our results show that MOB and MOx in CH<sub>4</sub>    ‐rich bottom waters are highly affected by geomorphology and seasonal    conditions.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Seasonal shifts of microbial methane oxidation in Arctic shelf waters above gas seeps","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:32:35.134808","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2021-05-31","DateCreate":"2021-05-07","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000637429800001","VABBcode":null,"OpenAcc":1,"DOI":"10.1002/lno.11731"},"refs":null,"anarec":{"AnaID":336986,"PubliDate":2021,"Pagination":"1896-1914","XtraPublOfAnaID":null,"ISBN":null,"Volume":"66","Issue":"5","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43511,"SerRR":"Limnology and Oceanography. 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