{"refrec":{"BRefID":339044,"RR":"<b>Maier, S.R.; Mienis, F.; de Froe, E.; Soetaert, K.; Lavaleye, M.; Duineveld, G.C.A.; Beauchard, O.; van der Kaaden, A.-S.; Koch, B.P.; van Oevelen, D.</b> (2021). Reef communities associated with ‘dead’ cold-water coral framework drive resource retention and recycling in the deep sea. <i>Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 175</i>: 103574. <a href=\"https://doi.org/10.1016/j.dsr.2021.103574\" target=\"_blank\">https://doi.org/10.1016/j.dsr.2021.103574</a>","BEntID":335679,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 175</i>: 103574. <a href=\"https://doi.org/10.1016/j.dsr.2021.103574\" target=\"_blank\">https://doi.org/10.1016/j.dsr.2021.103574</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Maier, S.R.; Mienis, F.; de Froe, E.; Soetaert, K.; Lavaleye, M.; Duineveld, G.C.A.; Beauchard, O.; van der Kaaden, A.-S.; Koch, B.P.; van Oevelen, D.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Maier, S.R. <i>et al.</i>","Englishabstract":"Cold-water coral (CWC) reefs create hotspots of metabolic activity in the    deep sea, in spite of the limited supply of fresh organic matter from the    ocean surface (i.e. phytodetritus). We propose that ‘dead’ coral framework,    which harbours diverse faunal and microbial communities, boosts the    metabolic activity of the reefs, through enhanced resource retention and    recycling. Analysis of a video transect across a 700-540 m-deep CWC mound    (Rockall Bank, North-East Atlantic) revealed a high benthic cover of dead    framework (64%). Box-cored fragments of dead framework were incubatedon-board and showed oxygen consumption rates of 0.078–0.182 μmol O    <sub>2</sub> (mmol OC)<sup>−1</sup> h<sup>−1</sup>, indicating a    substantial contribution to the total metabolic activity of the CWC reef.    During the incubations, it was shown that the framework degradation stage    influences nitrogen (re)cycling, corresponding to differences in community    composition. New (less-degraded) framework released ammonium(0.005 ± 0.001 μmol NH<sub>4</sub><sup>+</sup> (mmol OC)<sup>−1</sup> h    <sup>−1</sup>), probably due to the activity of ammonotelic macrofauna. In    contrast, old (more-degraded) framework released nitrate(0.015 ± 0.008 μmol NO<sub>3</sub><sup>−</sup> (mmol OC)<sup>−1</sup> h    <sup>−1</sup>), indicating that nitrifying microorganisms recycled    fauna-excreted ammonium to nitrate. Furthermore, the framework community    removed natural dissolved organic matter (DOM) from the incubation water    (0.005–0.122 μmol C (mmol OC)<sup>−1</sup> h<sup>−1</sup>). Additional    feeding experiments showed that all functional groups and macrofauna taxa    of the framework community incorporated <sup>13</sup>C-enriched    (‘labelled’) DOM, indicating widespread DOM uptake and recycling. Finally,    the framework effectively retained <sup>13</sup>C-enriched phytodetritus,    (a) by physical retention on the biofilm-covered surface and (b) by    biological filtration through suspension-feeding fauna. We therefore    suggest that the dead framework acts as a ‘filtration-recycling factory’    that enhances the metabolic activity of CWC reefs. The exposed framework,    however, is particularly vulnerable to ocean acidification, jeopardizing    this important aspect of CWC reef functioning.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Reef communities associated with ‘dead’ cold-water coral framework drive resource retention and recycling in the deep sea","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:32:37.025589","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Carbonate mound; Metabolic activity; Rockall bank; Dissolved organic carbon; Dissolved inorganic nitrogen; Suspension feeder; Video transect","OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2022-05-12","DateCreate":"2021-06-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000686607200002","VABBcode":null,"OpenAcc":1,"DOI":"10.1016/j.dsr.2021.103574"},"refs":null,"anarec":{"AnaID":339044,"PubliDate":2021,"Pagination":"103574","XtraPublOfAnaID":null,"ISBN":null,"Volume":"175","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45506,"SerRR":"Deep-Sea Research, Part I. 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