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Deleted resource template.xlsx from Bacteriohopanepolyols and glycerol dialkyl glycerol tetraethers record redox regime shifts in a marine inlet in eastern Prydz Bay, Antarctica during the Holocene
| f | 1 | { | f | 1 | { |
| 2 | "author": "Zo van Kemenade (Royal Netherlands Institute for Sea | 2 | "author": "Zo van Kemenade (Royal Netherlands Institute for Sea | ||
| 3 | Research)", | 3 | Research)", | ||
| 4 | "author_email": "zoe.vankemenade@bristol.ac.uk", | 4 | "author_email": "zoe.vankemenade@bristol.ac.uk", | ||
| 5 | "code": "7b.b.hj", | 5 | "code": "7b.b.hj", | ||
| 6 | "contributor": "Royal Netherlands Institute for Sea Research | 6 | "contributor": "Royal Netherlands Institute for Sea Research | ||
| 7 | (NIOZ)", | 7 | (NIOZ)", | ||
| 8 | "creator_user_id": "80af7444-b217-419a-91e1-9bfab630ac16", | 8 | "creator_user_id": "80af7444-b217-419a-91e1-9bfab630ac16", | ||
| 9 | "creators": | 9 | "creators": | ||
| 10 | \"Darci\",\"lastname\":\"Rush\",\"orcid\":null,\"affiliation\":\"Royal | 10 | \"Darci\",\"lastname\":\"Rush\",\"orcid\":null,\"affiliation\":\"Royal | ||
| 11 | Netherlands Institute for Sea | 11 | Netherlands Institute for Sea | ||
| 12 | ndingauthor\":false,\"contactemailaddress\":null,\"formatted\":\"Darci | 12 | ndingauthor\":false,\"contactemailaddress\":null,\"formatted\":\"Darci | ||
| 13 | Rush - Royal Netherlands Institute for Sea Research - ORCID: | 13 | Rush - Royal Netherlands Institute for Sea Research - ORCID: | ||
| 14 | \"},{\"firstname\":\"Zo\",\"lastname\":\"van | 14 | \"},{\"firstname\":\"Zo\",\"lastname\":\"van | ||
| 15 | Kemenade\",\"orcid\":null,\"affiliation\":\"Royal Netherlands | 15 | Kemenade\",\"orcid\":null,\"affiliation\":\"Royal Netherlands | ||
| 16 | Institute for Sea | 16 | Institute for Sea | ||
| 17 | actemailaddress\":\"zoe.vankemenade@bristol.ac.uk\",\"formatted\":\"Zo | 17 | actemailaddress\":\"zoe.vankemenade@bristol.ac.uk\",\"formatted\":\"Zo | ||
| 18 | van Kemenade - Royal Netherlands Institute for Sea Research - ORCID: | 18 | van Kemenade - Royal Netherlands Institute for Sea Research - ORCID: | ||
| 19 | - Corresponding Author - zoe.vankemenade@bristol.ac.uk\"}]", | 19 | - Corresponding Author - zoe.vankemenade@bristol.ac.uk\"}]", | ||
| 20 | "dataset_persistent_id": "DOI:10.25850/nioz/7b.b.hj", | 20 | "dataset_persistent_id": "DOI:10.25850/nioz/7b.b.hj", | ||
| 21 | "deposit_date": "2025-04-08", | 21 | "deposit_date": "2025-04-08", | ||
| 22 | "depositor": "Darci Rush (darci.rush@nioz.nl)", | 22 | "depositor": "Darci Rush (darci.rush@nioz.nl)", | ||
| 23 | "distribution_date": "2025-04-08", | 23 | "distribution_date": "2025-04-08", | ||
| 24 | "distributor": "Research Data Management(NIOZ Royal Netherlands | 24 | "distributor": "Research Data Management(NIOZ Royal Netherlands | ||
| 25 | Institute for Sea Research)", | 25 | Institute for Sea Research)", | ||
| 26 | "doi_date_published": "2025-04-08T13:24:19.8341983", | 26 | "doi_date_published": "2025-04-08T13:24:19.8341983", | ||
| 27 | "funding_references": | 27 | "funding_references": | ||
| 28 | rdnumber\":\"024.002.002\",\"awardtitle\":\"SIAM\",\"formatted\":\"NWO | 28 | rdnumber\":\"024.002.002\",\"awardtitle\":\"SIAM\",\"formatted\":\"NWO | ||
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| 33 | "license_title": null, | 33 | "license_title": null, | ||
| 34 | "maintainer": "Darci", | 34 | "maintainer": "Darci", | ||
| 35 | "maintainer_email": "darci.rush@nioz.nl", | 35 | "maintainer_email": "darci.rush@nioz.nl", | ||
| 36 | "metadata_created": "2025-04-16T07:20:26.519983", | 36 | "metadata_created": "2025-04-16T07:20:26.519983", | ||
| n | 37 | "metadata_modified": "2026-07-21T13:32:07.701969", | n | 37 | "metadata_modified": "2026-07-21T13:33:35.116978", |
| 38 | "name": | 38 | "name": | ||
| 39 | ol-dialkyl-glycerol-tetraethers-record-redox-regime-shifts-in-a-mari", | 39 | ol-dialkyl-glycerol-tetraethers-record-redox-regime-shifts-in-a-mari", | ||
| 40 | "notes": "Prydz Bay is located in the Southern Ocean, at the | 40 | "notes": "Prydz Bay is located in the Southern Ocean, at the | ||
| 41 | terminus of one of the largest\nglacial systems of East Antarctica. | 41 | terminus of one of the largest\nglacial systems of East Antarctica. | ||
| 42 | Consequently, its sedimentary record may hold\ninformation on the | 42 | Consequently, its sedimentary record may hold\ninformation on the | ||
| 43 | response of marine biogeochemical cycling to past and future\nchanges | 43 | response of marine biogeochemical cycling to past and future\nchanges | ||
| 44 | in Antarctic oceanography. Bacteriohopanepolyols (BHPs) offer | 44 | in Antarctic oceanography. Bacteriohopanepolyols (BHPs) offer | ||
| 45 | great\npotential to trace such changes, as these bacterial membrane | 45 | great\npotential to trace such changes, as these bacterial membrane | ||
| 46 | lipids have been linked\nto distinct biogeochemical processes. Here, | 46 | lipids have been linked\nto distinct biogeochemical processes. Here, | ||
| 47 | we present the BHP inventory of a\nHolocene sediment record, recovered | 47 | we present the BHP inventory of a\nHolocene sediment record, recovered | ||
| 48 | from a marine basin in Eastern Prydz Bay. BHP\nlipidomics was combined | 48 | from a marine basin in Eastern Prydz Bay. BHP\nlipidomics was combined | ||
| 49 | with independent environmental proxies. Our results show\nelevated | 49 | with independent environmental proxies. Our results show\nelevated | ||
| 50 | nucleoside-BHPs in early Holocene sediments from ~9.1 to 10.7 cal ka | 50 | nucleoside-BHPs in early Holocene sediments from ~9.1 to 10.7 cal ka | ||
| 51 | BP.\nAs GDGT-based indices suggest terrestrial organic matter influx | 51 | BP.\nAs GDGT-based indices suggest terrestrial organic matter influx | ||
| 52 | was insignificant, the\npresence of nucleoside-BHPs is interpreted to | 52 | was insignificant, the\npresence of nucleoside-BHPs is interpreted to | ||
| 53 | reflect autochthonous production under\nhypoxic-anoxic conditions, as | 53 | reflect autochthonous production under\nhypoxic-anoxic conditions, as | ||
| 54 | inferred from BHT-x ratios \u2265 0.2. The record is\ncharacterized by | 54 | inferred from BHT-x ratios \u2265 0.2. The record is\ncharacterized by | ||
| 55 | a large diversity of rare and novel BHPs. Their occurrence | 55 | a large diversity of rare and novel BHPs. Their occurrence | ||
| 56 | is\npotentially related to membrane cold-adaptations of predominantly | 56 | is\npotentially related to membrane cold-adaptations of predominantly | ||
| 57 | aerobic bacteria\n(i.e., TEX86OH-reconstructed sea surface | 57 | aerobic bacteria\n(i.e., TEX86OH-reconstructed sea surface | ||
| 58 | temperatures are -2.4 to -0.8\u00b0C). Increased\nabundance and | 58 | temperatures are -2.4 to -0.8\u00b0C). Increased\nabundance and | ||
| 59 | diversity of these BHPs between ~5.5\u2013 7.5 and ~8.9\u2013 9.8 cal | 59 | diversity of these BHPs between ~5.5\u2013 7.5 and ~8.9\u2013 9.8 cal | ||
| 60 | ka BP is\nlikely associated with an oxygenation of the basin at this | 60 | ka BP is\nlikely associated with an oxygenation of the basin at this | ||
| 61 | time. The late Holocene (<3.0\ncal ka BP) water column experienced | 61 | time. The late Holocene (<3.0\ncal ka BP) water column experienced | ||
| 62 | photic zone euxinia, high rates of nitrogen loss\nand methanogenesis, | 62 | photic zone euxinia, high rates of nitrogen loss\nand methanogenesis, | ||
| 63 | as indicated by the presence of isorenieratene, enriched | 63 | as indicated by the presence of isorenieratene, enriched | ||
| 64 | \u03b415N\nvalues and GDGT-0/cren ratios, respectively. BHPs in these | 64 | \u03b415N\nvalues and GDGT-0/cren ratios, respectively. BHPs in these | ||
| 65 | sediments likely derive\nfrom two different ecological niches: i) the | 65 | sediments likely derive\nfrom two different ecological niches: i) the | ||
| 66 | uppermost oxygenated waters where\naerobic methane oxidation occurs | 66 | uppermost oxygenated waters where\naerobic methane oxidation occurs | ||
| 67 | and ii) the deeper sulfidic waters. This study shows\nthat the | 67 | and ii) the deeper sulfidic waters. This study shows\nthat the | ||
| 68 | Southern Ocean sedimentary record holds a diverse array of BHPs, | 68 | Southern Ocean sedimentary record holds a diverse array of BHPs, | ||
| 69 | including\nnovel BHPs and BHPs formerly solely associated with | 69 | including\nnovel BHPs and BHPs formerly solely associated with | ||
| 70 | terrestrial environments. BHPdistributions\ncan be linked to distinct | 70 | terrestrial environments. BHPdistributions\ncan be linked to distinct | ||
| 71 | redox regime shifts within the basin, which are\nregulated by changes | 71 | redox regime shifts within the basin, which are\nregulated by changes | ||
| 72 | in sea level and sea ice in Prydz Bay. Our findings highlight | 72 | in sea level and sea ice in Prydz Bay. Our findings highlight | ||
| 73 | the\npotential use of BHPs as tracers for biogeochemical cycling in | 73 | the\npotential use of BHPs as tracers for biogeochemical cycling in | ||
| 74 | marine polar regions.", | 74 | marine polar regions.", | ||
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| 78 | "approval_status": "approved", | 78 | "approval_status": "approved", | ||
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| 130 | "title": "Bacteriohopanepolyols and glycerol dialkyl glycerol | 106 | "title": "Bacteriohopanepolyols and glycerol dialkyl glycerol | ||
| 131 | tetraethers record redox regime shifts in a marine inlet in eastern | 107 | tetraethers record redox regime shifts in a marine inlet in eastern | ||
| 132 | Prydz Bay, Antarctica during the Holocene", | 108 | Prydz Bay, Antarctica during the Holocene", | ||
| 133 | "type": "dataset", | 109 | "type": "dataset", | ||
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