Changes
On October 16, 2026, 7:05:15 PM UTC, ckan_admin:
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Set visibility of Data supplement to "Benthic phosphorus cycling in the northern Benguela upwelling system: excess P supply and altered pelagic nutrient stoichiometry" to Public
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Moved Data supplement to "Benthic phosphorus cycling in the northern Benguela upwelling system: excess P supply and altered pelagic nutrient stoichiometry" from https://doi.nioz.nl/dataset/data-supplement-to-benthic-phosphorus-cycling-in-the-northern-benguela-upwelling-system-excess-p-sup to https://doi.nioz.nl/dataset/data-supplement-to-benthic-phosphorus-cycling-in-the-northern-benguela-upwelling-system-excess-7bbwk.
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Changed the version of Data supplement to "Benthic phosphorus cycling in the northern Benguela upwelling system: excess P supply and altered pelagic nutrient stoichiometry" to 1
| f | 1 | { | f | 1 | { |
| 2 | "alternate_identifier": "FUNAMOX biogeochemical data", | 2 | "alternate_identifier": "FUNAMOX biogeochemical data", | ||
| 3 | "author": "Peter Kraal (Royal Netherlands Institute for Sea | 3 | "author": "Peter Kraal (Royal Netherlands Institute for Sea | ||
| 4 | Research)", | 4 | Research)", | ||
| 5 | "author_email": "peter.kraal@nioz.nl", | 5 | "author_email": "peter.kraal@nioz.nl", | ||
| 6 | "code": "7b.b.wk", | 6 | "code": "7b.b.wk", | ||
| 7 | "contributor": "Royal Netherlands Institute for Sea Research | 7 | "contributor": "Royal Netherlands Institute for Sea Research | ||
| 8 | (NIOZ)", | 8 | (NIOZ)", | ||
| 9 | "creator_user_id": "bc3ae580-58d1-4d8b-8118-91cc3fddb8b7", | 9 | "creator_user_id": "bc3ae580-58d1-4d8b-8118-91cc3fddb8b7", | ||
| 10 | "creators": | 10 | "creators": | ||
| 11 | \":\"Kraal\",\"orcid\":\"0000-0002-6650-5680\",\"affiliation\":\"Royal | 11 | \":\"Kraal\",\"orcid\":\"0000-0002-6650-5680\",\"affiliation\":\"Royal | ||
| 12 | Netherlands Institute for Sea | 12 | Netherlands Institute for Sea | ||
| 13 | ,\"contactemailaddress\":\"peter.kraal@nioz.nl\",\"formatted\":\"Peter | 13 | ,\"contactemailaddress\":\"peter.kraal@nioz.nl\",\"formatted\":\"Peter | ||
| 14 | Kraal - Royal Netherlands Institute for Sea Research - ORCID: | 14 | Kraal - Royal Netherlands Institute for Sea Research - ORCID: | ||
| 15 | 0000-0002-6650-5680 - Corresponding Author - peter.kraal@nioz.nl\"}]", | 15 | 0000-0002-6650-5680 - Corresponding Author - peter.kraal@nioz.nl\"}]", | ||
| 16 | "dataset_persistent_id": "DOI:10.25850/nioz/7b.b.wk", | 16 | "dataset_persistent_id": "DOI:10.25850/nioz/7b.b.wk", | ||
| 17 | "deposit_date": "2026-04-02", | 17 | "deposit_date": "2026-04-02", | ||
| 18 | "depositor": "Peter Kraal (peter.kraal@nioz.nl)", | 18 | "depositor": "Peter Kraal (peter.kraal@nioz.nl)", | ||
| 19 | "distribution_date": "2026-04-02", | 19 | "distribution_date": "2026-04-02", | ||
| 20 | "distributor": "Research Data Management(NIOZ Royal Netherlands | 20 | "distributor": "Research Data Management(NIOZ Royal Netherlands | ||
| 21 | Institute for Sea Research)", | 21 | Institute for Sea Research)", | ||
| n | n | 22 | "doi_date_published": "2026-10-16T21:05:07.799528", | ||
| 22 | "geographic_coverage": "[{\"place\":\"northern Benguela upwelling | 23 | "geographic_coverage": "[{\"place\":\"northern Benguela upwelling | ||
| 23 | longitude_2\":\"-12\",\"longitude_1\":\"-15\",\"formatted\":\"northern | 24 | longitude_2\":\"-12\",\"longitude_1\":\"-15\",\"formatted\":\"northern | ||
| 24 | Benguela upwelling system N: -19 S: -27 E: -15 W: -12\"}]", | 25 | Benguela upwelling system N: -19 S: -27 E: -15 W: -12\"}]", | ||
| 25 | "groups": [], | 26 | "groups": [], | ||
| 26 | "id": "7f346f4c-c431-4f0a-bb97-3249864e74e1", | 27 | "id": "7f346f4c-c431-4f0a-bb97-3249864e74e1", | ||
| 27 | "isopen": false, | 28 | "isopen": false, | ||
| 28 | "license_title": null, | 29 | "license_title": null, | ||
| 29 | "maintainer": "Peter", | 30 | "maintainer": "Peter", | ||
| 30 | "maintainer_email": "peter.kraal@nioz.nl", | 31 | "maintainer_email": "peter.kraal@nioz.nl", | ||
| 31 | "metadata_created": "2026-04-02T10:58:48.587143", | 32 | "metadata_created": "2026-04-02T10:58:48.587143", | ||
| n | 32 | "metadata_modified": "2026-07-21T13:32:34.652735", | n | 33 | "metadata_modified": "2026-10-16T19:05:13.563001", |
| 33 | "name": | 34 | "name": | ||
| n | 34 | horus-cycling-in-the-northern-benguela-upwelling-system-excess-p-sup", | n | 35 | horus-cycling-in-the-northern-benguela-upwelling-system-excess-7bbwk", |
| 35 | "notes": "The northern Benguela upwelling system (NBUS) off Namibia | 36 | "notes": "The northern Benguela upwelling system (NBUS) off Namibia | ||
| 36 | is one of the most productive marine regions globally, with intense | 37 | is one of the most productive marine regions globally, with intense | ||
| 37 | biogeochemical cycling and burial of essential elements such as carbon | 38 | biogeochemical cycling and burial of essential elements such as carbon | ||
| 38 | (C), nitrogen (N) and phosphorus (P). Redox conditions, a key | 39 | (C), nitrogen (N) and phosphorus (P). Redox conditions, a key | ||
| 39 | parameter in coupled biogeochemical cycling, are highly variable in | 40 | parameter in coupled biogeochemical cycling, are highly variable in | ||
| 40 | both space and time; a perennial oxygen minimum zone (OMZ; minimum O2 | 41 | both space and time; a perennial oxygen minimum zone (OMZ; minimum O2 | ||
| 41 | ~ 50 \u00b5mol L-1) impinges on the slope while the shelf is | 42 | ~ 50 \u00b5mol L-1) impinges on the slope while the shelf is | ||
| 42 | seasonally oxygen-depleted and even euxinic (i.e. free sulphide in the | 43 | seasonally oxygen-depleted and even euxinic (i.e. free sulphide in the | ||
| 43 | water column). Areas such as the NBUS are not only significant in | 44 | water column). Areas such as the NBUS are not only significant in | ||
| 44 | regional and global marine element cycles and budgets but can also | 45 | regional and global marine element cycles and budgets but can also | ||
| 45 | help predict the impact of globally increasing marine oxygen loss and | 46 | help predict the impact of globally increasing marine oxygen loss and | ||
| 46 | associated altered nutrient cycling. Here, we aim to provide a | 47 | associated altered nutrient cycling. Here, we aim to provide a | ||
| 47 | hitherto lacking mechanistic framework for coupled benthic-pelagic | 48 | hitherto lacking mechanistic framework for coupled benthic-pelagic | ||
| 48 | cycling of the major nutrients N and P in response to (variable) redox | 49 | cycling of the major nutrients N and P in response to (variable) redox | ||
| 49 | conditions in the NBUS, with specific attention to the occurrence and | 50 | conditions in the NBUS, with specific attention to the occurrence and | ||
| 50 | importance of poorly understood, non-traditional P cycling mechanisms. | 51 | importance of poorly understood, non-traditional P cycling mechanisms. | ||
| 51 | We combine biogeochemical water-column and sediment data collected | 52 | We combine biogeochemical water-column and sediment data collected | ||
| 52 | from the shelf to slope (100\u20131500 meters water depth) during a | 53 | from the shelf to slope (100\u20131500 meters water depth) during a | ||
| 53 | cruise in austral summer when shelf bottom waters were low in oxygen. | 54 | cruise in austral summer when shelf bottom waters were low in oxygen. | ||
| 54 | We show shifts in P cycling mechanisms from the slope to the shelf, | 55 | We show shifts in P cycling mechanisms from the slope to the shelf, | ||
| 55 | and major shifts in N:P stoichiometry on the shelf from decoupled N-P | 56 | and major shifts in N:P stoichiometry on the shelf from decoupled N-P | ||
| 56 | cycling: nutrient-N (NO3-, NH4+) is lost as N2 by anaerobic microbial | 57 | cycling: nutrient-N (NO3-, NH4+) is lost as N2 by anaerobic microbial | ||
| 57 | metabolism while excess P is supplied from the sediment. This excess P | 58 | metabolism while excess P is supplied from the sediment. This excess P | ||
| 58 | supply derives from labile sediment P pools other than organic matter: | 59 | supply derives from labile sediment P pools other than organic matter: | ||
| 59 | visual core inspection, phosphorus sequential extraction and | 60 | visual core inspection, phosphorus sequential extraction and | ||
| 60 | pore-water chemistry together indicated that a large proportion of the | 61 | pore-water chemistry together indicated that a large proportion of the | ||
| 61 | highly reactive sedimentary P pool in shelf sediments consists of (i) | 62 | highly reactive sedimentary P pool in shelf sediments consists of (i) | ||
| 62 | P supplied in fish debris rather than marine algal biomass and/or (ii) | 63 | P supplied in fish debris rather than marine algal biomass and/or (ii) | ||
| 63 | P accumulated intracellularly by sulphide-oxidizing bacteria (SOB). To | 64 | P accumulated intracellularly by sulphide-oxidizing bacteria (SOB). To | ||
| 64 | further improve our understanding of (de)coupled OMZ nutrient | 65 | further improve our understanding of (de)coupled OMZ nutrient | ||
| 65 | dynamics, we quantify the prominent role of excess benthic P supply in | 66 | dynamics, we quantify the prominent role of excess benthic P supply in | ||
| 66 | the pelagic N deficit in our study area. In this study, we not only | 67 | the pelagic N deficit in our study area. In this study, we not only | ||
| 67 | provide an integrated framework for how coupled benthic-pelagic | 68 | provide an integrated framework for how coupled benthic-pelagic | ||
| 68 | processes shape OMZ nutrient dynamics, but also highlight the | 69 | processes shape OMZ nutrient dynamics, but also highlight the | ||
| 69 | sensitivity of coupled biogeochemical cycles to spatial and temporal | 70 | sensitivity of coupled biogeochemical cycles to spatial and temporal | ||
| 70 | variability in depositional conditions.", | 71 | variability in depositional conditions.", | ||
| 71 | "num_resources": 0, | 72 | "num_resources": 0, | ||
| 72 | "num_tags": 5, | 73 | "num_tags": 5, | ||
| 73 | "organization": { | 74 | "organization": { | ||
| 74 | "approval_status": "approved", | 75 | "approval_status": "approved", | ||
| 75 | "created": "2024-10-22T06:06:56.074257", | 76 | "created": "2024-10-22T06:06:56.074257", | ||
| 76 | "description": "", | 77 | "description": "", | ||
| 77 | "id": "bed2a893-3895-450b-bf4b-c74318003b1b", | 78 | "id": "bed2a893-3895-450b-bf4b-c74318003b1b", | ||
| n | 78 | "image_url": "https://ckan.nioz.nl/NIOZ.svg", | n | 79 | "image_url": "https://doi.nioz.nl/NIOZ.svg", |
| 79 | "is_organization": true, | 80 | "is_organization": true, | ||
| 80 | "name": "nioz", | 81 | "name": "nioz", | ||
| 81 | "state": "active", | 82 | "state": "active", | ||
| 82 | "title": "Royal Netherlands Institute for Sea Research", | 83 | "title": "Royal Netherlands Institute for Sea Research", | ||
| 83 | "type": "organization" | 84 | "type": "organization" | ||
| 84 | }, | 85 | }, | ||
| 85 | "owner_org": "bed2a893-3895-450b-bf4b-c74318003b1b", | 86 | "owner_org": "bed2a893-3895-450b-bf4b-c74318003b1b", | ||
| n | 86 | "private": true, | n | 87 | "private": false, |
| 88 | "production_date": "2026-10-16", | ||||
| 87 | "relationships_as_object": [], | 89 | "relationships_as_object": [], | ||
| 88 | "relationships_as_subject": [], | 90 | "relationships_as_subject": [], | ||
| 89 | "resources": [], | 91 | "resources": [], | ||
| 90 | "state": "active", | 92 | "state": "active", | ||
| 91 | "subject": "Earth and Environmental Sciences", | 93 | "subject": "Earth and Environmental Sciences", | ||
| 92 | "tags": [ | 94 | "tags": [ | ||
| 93 | { | 95 | { | ||
| 94 | "display_name": "benthic fluxes", | 96 | "display_name": "benthic fluxes", | ||
| 95 | "id": "e73f599a-74e1-4e7d-b271-1d21800c19af", | 97 | "id": "e73f599a-74e1-4e7d-b271-1d21800c19af", | ||
| 96 | "name": "benthic fluxes", | 98 | "name": "benthic fluxes", | ||
| 97 | "state": "active", | 99 | "state": "active", | ||
| 98 | "vocabulary_id": null | 100 | "vocabulary_id": null | ||
| 99 | }, | 101 | }, | ||
| 100 | { | 102 | { | ||
| 101 | "display_name": "bottom-water chemistry", | 103 | "display_name": "bottom-water chemistry", | ||
| 102 | "id": "b68b5eb9-3a05-4299-b797-7af711aa63fe", | 104 | "id": "b68b5eb9-3a05-4299-b797-7af711aa63fe", | ||
| 103 | "name": "bottom-water chemistry", | 105 | "name": "bottom-water chemistry", | ||
| 104 | "state": "active", | 106 | "state": "active", | ||
| 105 | "vocabulary_id": null | 107 | "vocabulary_id": null | ||
| 106 | }, | 108 | }, | ||
| 107 | { | 109 | { | ||
| 108 | "display_name": "pore-water chemistry", | 110 | "display_name": "pore-water chemistry", | ||
| 109 | "id": "3481b331-f473-4053-b7a5-8007596a8bfc", | 111 | "id": "3481b331-f473-4053-b7a5-8007596a8bfc", | ||
| 110 | "name": "pore-water chemistry", | 112 | "name": "pore-water chemistry", | ||
| 111 | "state": "active", | 113 | "state": "active", | ||
| 112 | "vocabulary_id": null | 114 | "vocabulary_id": null | ||
| 113 | }, | 115 | }, | ||
| 114 | { | 116 | { | ||
| 115 | "display_name": "sediment chemistry", | 117 | "display_name": "sediment chemistry", | ||
| 116 | "id": "02888dcd-b49a-454b-a3de-515aa1185034", | 118 | "id": "02888dcd-b49a-454b-a3de-515aa1185034", | ||
| 117 | "name": "sediment chemistry", | 119 | "name": "sediment chemistry", | ||
| 118 | "state": "active", | 120 | "state": "active", | ||
| 119 | "vocabulary_id": null | 121 | "vocabulary_id": null | ||
| 120 | }, | 122 | }, | ||
| 121 | { | 123 | { | ||
| 122 | "display_name": "water-column physicochemistry", | 124 | "display_name": "water-column physicochemistry", | ||
| 123 | "id": "d2b7d925-fec8-465b-b8dd-d5845c99ef99", | 125 | "id": "d2b7d925-fec8-465b-b8dd-d5845c99ef99", | ||
| 124 | "name": "water-column physicochemistry", | 126 | "name": "water-column physicochemistry", | ||
| 125 | "state": "active", | 127 | "state": "active", | ||
| 126 | "vocabulary_id": null | 128 | "vocabulary_id": null | ||
| 127 | } | 129 | } | ||
| 128 | ], | 130 | ], | ||
| 129 | "title": "Data supplement to \"Benthic phosphorus cycling in the | 131 | "title": "Data supplement to \"Benthic phosphorus cycling in the | ||
| 130 | northern Benguela upwelling system: excess P supply and altered | 132 | northern Benguela upwelling system: excess P supply and altered | ||
| 131 | pelagic nutrient stoichiometry\"", | 133 | pelagic nutrient stoichiometry\"", | ||
| 132 | "type": "dataset", | 134 | "type": "dataset", | ||
| t | 133 | "url": "https://doi.org/10.25850/nioz/7b.b.wk" | t | 135 | "url": "https://doi.org/10.25850/nioz/7b.b.wk", |
| 136 | "version": "1" | ||||
| 134 | } | 137 | } |