Changes
On October 16, 2026, 7:15:58 PM UTC, ckan_admin:
-
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-7bbwk to https://doi.nioz.nl/dataset/data-supplement-to-benthic-phosphorus-cycling-in-the-northern-benguela-upwelling-system-excess-p-sup.
| 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)", | ||
| 22 | "doi_date_published": "2026-10-16T21:05:07.799528", | 22 | "doi_date_published": "2026-10-16T21:05:07.799528", | ||
| 23 | "geographic_coverage": "[{\"place\":\"northern Benguela upwelling | 23 | "geographic_coverage": "[{\"place\":\"northern Benguela upwelling | ||
| 24 | longitude_2\":\"-12\",\"longitude_1\":\"-15\",\"formatted\":\"northern | 24 | longitude_2\":\"-12\",\"longitude_1\":\"-15\",\"formatted\":\"northern | ||
| 25 | Benguela upwelling system N: -19 S: -27 E: -15 W: -12\"}]", | 25 | Benguela upwelling system N: -19 S: -27 E: -15 W: -12\"}]", | ||
| 26 | "groups": [], | 26 | "groups": [], | ||
| 27 | "id": "7f346f4c-c431-4f0a-bb97-3249864e74e1", | 27 | "id": "7f346f4c-c431-4f0a-bb97-3249864e74e1", | ||
| 28 | "isopen": false, | 28 | "isopen": false, | ||
| 29 | "license_title": null, | 29 | "license_title": null, | ||
| 30 | "maintainer": "Peter", | 30 | "maintainer": "Peter", | ||
| 31 | "maintainer_email": "peter.kraal@nioz.nl", | 31 | "maintainer_email": "peter.kraal@nioz.nl", | ||
| 32 | "metadata_created": "2026-04-02T10:58:48.587143", | 32 | "metadata_created": "2026-04-02T10:58:48.587143", | ||
| n | 33 | "metadata_modified": "2026-10-16T19:05:30.663412", | n | 33 | "metadata_modified": "2026-10-16T19:15:58.754398", |
| 34 | "name": | 34 | "name": | ||
| t | 35 | horus-cycling-in-the-northern-benguela-upwelling-system-excess-7bbwk", | t | 35 | horus-cycling-in-the-northern-benguela-upwelling-system-excess-p-sup", |
| 36 | "notes": "The northern Benguela upwelling system (NBUS) off Namibia | 36 | "notes": "The northern Benguela upwelling system (NBUS) off Namibia | ||
| 37 | is one of the most productive marine regions globally, with intense | 37 | is one of the most productive marine regions globally, with intense | ||
| 38 | biogeochemical cycling and burial of essential elements such as carbon | 38 | biogeochemical cycling and burial of essential elements such as carbon | ||
| 39 | (C), nitrogen (N) and phosphorus (P). Redox conditions, a key | 39 | (C), nitrogen (N) and phosphorus (P). Redox conditions, a key | ||
| 40 | parameter in coupled biogeochemical cycling, are highly variable in | 40 | parameter in coupled biogeochemical cycling, are highly variable in | ||
| 41 | 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 | ||
| 42 | ~ 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 | ||
| 43 | 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 | ||
| 44 | 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 | ||
| 45 | regional and global marine element cycles and budgets but can also | 45 | regional and global marine element cycles and budgets but can also | ||
| 46 | help predict the impact of globally increasing marine oxygen loss and | 46 | help predict the impact of globally increasing marine oxygen loss and | ||
| 47 | associated altered nutrient cycling. Here, we aim to provide a | 47 | associated altered nutrient cycling. Here, we aim to provide a | ||
| 48 | hitherto lacking mechanistic framework for coupled benthic-pelagic | 48 | hitherto lacking mechanistic framework for coupled benthic-pelagic | ||
| 49 | 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 | ||
| 50 | conditions in the NBUS, with specific attention to the occurrence and | 50 | conditions in the NBUS, with specific attention to the occurrence and | ||
| 51 | importance of poorly understood, non-traditional P cycling mechanisms. | 51 | importance of poorly understood, non-traditional P cycling mechanisms. | ||
| 52 | We combine biogeochemical water-column and sediment data collected | 52 | We combine biogeochemical water-column and sediment data collected | ||
| 53 | 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 | ||
| 54 | 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. | ||
| 55 | 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, | ||
| 56 | 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 | ||
| 57 | 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 | ||
| 58 | 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 | ||
| 59 | supply derives from labile sediment P pools other than organic matter: | 59 | supply derives from labile sediment P pools other than organic matter: | ||
| 60 | visual core inspection, phosphorus sequential extraction and | 60 | visual core inspection, phosphorus sequential extraction and | ||
| 61 | pore-water chemistry together indicated that a large proportion of the | 61 | pore-water chemistry together indicated that a large proportion of the | ||
| 62 | highly reactive sedimentary P pool in shelf sediments consists of (i) | 62 | highly reactive sedimentary P pool in shelf sediments consists of (i) | ||
| 63 | 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) | ||
| 64 | P accumulated intracellularly by sulphide-oxidizing bacteria (SOB). To | 64 | P accumulated intracellularly by sulphide-oxidizing bacteria (SOB). To | ||
| 65 | further improve our understanding of (de)coupled OMZ nutrient | 65 | further improve our understanding of (de)coupled OMZ nutrient | ||
| 66 | 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 | ||
| 67 | 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 | ||
| 68 | provide an integrated framework for how coupled benthic-pelagic | 68 | provide an integrated framework for how coupled benthic-pelagic | ||
| 69 | processes shape OMZ nutrient dynamics, but also highlight the | 69 | processes shape OMZ nutrient dynamics, but also highlight the | ||
| 70 | sensitivity of coupled biogeochemical cycles to spatial and temporal | 70 | sensitivity of coupled biogeochemical cycles to spatial and temporal | ||
| 71 | variability in depositional conditions.", | 71 | variability in depositional conditions.", | ||
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| 73 | "num_tags": 5, | 73 | "num_tags": 5, | ||
| 74 | "organization": { | 74 | "organization": { | ||
| 75 | "approval_status": "approved", | 75 | "approval_status": "approved", | ||
| 76 | "created": "2024-10-22T06:06:56.074257", | 76 | "created": "2024-10-22T06:06:56.074257", | ||
| 77 | "description": "", | 77 | "description": "", | ||
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| 79 | "image_url": "https://doi.nioz.nl/NIOZ.svg", | 79 | "image_url": "https://doi.nioz.nl/NIOZ.svg", | ||
| 80 | "is_organization": true, | 80 | "is_organization": true, | ||
| 81 | "name": "nioz", | 81 | "name": "nioz", | ||
| 82 | "state": "active", | 82 | "state": "active", | ||
| 83 | "title": "Royal Netherlands Institute for Sea Research", | 83 | "title": "Royal Netherlands Institute for Sea Research", | ||
| 84 | "type": "organization" | 84 | "type": "organization" | ||
| 85 | }, | 85 | }, | ||
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| 87 | "private": false, | 87 | "private": false, | ||
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| 160 | "subject": "Earth and Environmental Sciences", | 160 | "subject": "Earth and Environmental Sciences", | ||
| 161 | "tags": [ | 161 | "tags": [ | ||
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| 163 | "display_name": "benthic fluxes", | 163 | "display_name": "benthic fluxes", | ||
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| 185 | "id": "02888dcd-b49a-454b-a3de-515aa1185034", | 185 | "id": "02888dcd-b49a-454b-a3de-515aa1185034", | ||
| 186 | "name": "sediment chemistry", | 186 | "name": "sediment chemistry", | ||
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| 191 | "display_name": "water-column physicochemistry", | 191 | "display_name": "water-column physicochemistry", | ||
| 192 | "id": "d2b7d925-fec8-465b-b8dd-d5845c99ef99", | 192 | "id": "d2b7d925-fec8-465b-b8dd-d5845c99ef99", | ||
| 193 | "name": "water-column physicochemistry", | 193 | "name": "water-column physicochemistry", | ||
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| 196 | } | 196 | } | ||
| 197 | ], | 197 | ], | ||
| 198 | "title": "Data supplement to \"Benthic phosphorus cycling in the | 198 | "title": "Data supplement to \"Benthic phosphorus cycling in the | ||
| 199 | northern Benguela upwelling system: excess P supply and altered | 199 | northern Benguela upwelling system: excess P supply and altered | ||
| 200 | pelagic nutrient stoichiometry\"", | 200 | pelagic nutrient stoichiometry\"", | ||
| 201 | "type": "dataset", | 201 | "type": "dataset", | ||
| 202 | "url": "https://doi.org/10.25850/nioz/7b.b.wk", | 202 | "url": "https://doi.org/10.25850/nioz/7b.b.wk", | ||
| 203 | "version": "1" | 203 | "version": "1" | ||
| 204 | } | 204 | } |