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On December 18, 2025, 1:55:33 PM UTC, ckan_admin:

Set maintainer of NIOZ fyke programme Stuifdijk to Anieke

Set maintainer email of NIOZ fyke programme Stuifdijk to anieke.van.leeuwen@nioz.nl

Set author of NIOZ fyke programme Stuifdijk to Anieke van Leeuwen (Royal Netherlands Institute for Sea Research)

Set author email of NIOZ fyke programme Stuifdijk to anieke.van.leeuwen@nioz.nl

Updated description of NIOZ fyke programme Stuifdijk from
The Royal NIOZ collects data on the Wadden Sea fish community using traditional fixed gear at a specific location (Lat 52.997N, Long 4.775E) since 1960. The fixed gear is known as a 'kom-fyke' and is a passive fish trap consisting of a 200-m net running from the beach towards deeper waters (the stretched mesh size is 20 mm). This net guides migrating fish towards 2 chambers / traps and into a fyke where they can be collected. The catch is collected each day in spring (late March to early July) and in fall (late August to early November) and netting is removed in the summer (due to algae) and winter (due to storms). This data summarises the catch information as seasonal catch per unit effort (total numbers of fish caught per season, divided by the total number of fishing days in the season), for each year 1980-2019. Seasons are spring and fall, as defined above.
to
The Royal NIOZ collects data on the Wadden Sea fish community using traditional fixed gear at a specific location (Lat 52.997N, Long 4.775E) since 1960. The fixed gear is known as a 'kom-fyke' and is a passive fish trap consisting of a 200-m net running from the beach towards deeper waters (the stretched mesh size is 20 mm). This net guides migrating fish towards 2 chambers / traps and into a fyke where they can be collected. The catch is collected each day in spring (late March to early July) and in fall (late August to early November) and netting is removed in the summer (due to algae) and winter (due to storms). This data summarises the catch information as seasonal catch per unit effort (total numbers of fish caught per season, divided by the total number of fishing days in the season), for each year 1980-2019. Seasons are spring and fall, as defined above. NB Dec 2025: datafile was corrected to include a larger period of years, two fyke locations (1 = Stuifdijk and 3 = Schanserwaard), and a data correction due to earlier errors.

Added tag nioz fyke to NIOZ fyke programme Stuifdijk

Moved NIOZ fyke programme Stuifdijk from https://doi.nioz.nl/dataset/7bbud to https://doi.nioz.nl/dataset/nioz-fyke-programme-stuifdijk

Changed the source URL of NIOZ fyke programme Stuifdijk from https://dataportal.nioz.nl/doi/10.25850/nioz/7b.b.ud to https://doi.org/10.25850/nioz/7b.b.ud

Changed the version of NIOZ fyke programme Stuifdijk to 1 (previously 9)

Changed value of field depositor to Anieke van Leeuwen (anieke.van.leeuwen@nioz.nl) in NIOZ fyke programme Stuifdijk

Changed value of field dates to [{"datefrom":"1960-01-01 00:00:00.000","dateto":"2023-12-31 00:00:00.000","type":"collected","information":null}] in NIOZ fyke programme Stuifdijk

Changed value of field doi_date_published to 2023-01-13T09:31:31.8801691 in NIOZ fyke programme Stuifdijk

Changed value of field contributor to Royal Netherlands Institute for Sea Research (NIOZ) in NIOZ fyke programme Stuifdijk

              
    
          
          
        
        
            f 1 { f 1 {
            n 2   "author": null, n 2   "author": "Anieke van Leeuwen (Royal Netherlands Institute for Sea 
            3   "author_email": null, 3 Research)",
            4   "author_email": "anieke.van.leeuwen@nioz.nl",
            4   "code": "7b.b.ud", 5   "code": "7b.b.ud",
            n 5   "contributor": "NIOZ Royal Netherlands Institute for Sea Research", n 6   "contributor": "Royal Netherlands Institute for Sea Research 
            7 (NIOZ)",
            6   "creator_user_id": "3efb17f8-eb72-4d32-92a2-cb30f3f6232e", 8   "creator_user_id": "3efb17f8-eb72-4d32-92a2-cb30f3f6232e",
            7   "creators": "[{\"firstname\":\"Anieke\",\"lastname\":\"van  9   "creators": "[{\"firstname\":\"Anieke\",\"lastname\":\"van 
            8 Leeuwen\",\"orcid\":\"0000-0003-1987-1458\",\"affiliation\":\"Royal  10 Leeuwen\",\"orcid\":\"0000-0003-1987-1458\",\"affiliation\":\"Royal 
            9 Netherlands Institute for Sea  11 Netherlands Institute for Sea 
            10 ctemailaddress\":\"anieke.van.leeuwen@nioz.nl\",\"formatted\":\"Anieke  12 ctemailaddress\":\"anieke.van.leeuwen@nioz.nl\",\"formatted\":\"Anieke 
            11 van Leeuwen - Royal Netherlands Institute for Sea Research - ORCID:  13 van Leeuwen - Royal Netherlands Institute for Sea Research - ORCID: 
            12 0000-0003-1987-1458 - Corresponding Author -  14 0000-0003-1987-1458 - Corresponding Author - 
            13 ieke.van.leeuwen@nioz.nl\"},{\"firstname\":\"Henk\",\"lastname\":\"van  15 ieke.van.leeuwen@nioz.nl\"},{\"firstname\":\"Henk\",\"lastname\":\"van 
            14 der Veer\",\"orcid\":\"0000-0001-5035-661X\",\"affiliation\":\"Royal  16 der Veer\",\"orcid\":\"0000-0001-5035-661X\",\"affiliation\":\"Royal 
            15 Netherlands Institute for Sea  17 Netherlands Institute for Sea 
            16 pondingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"Henk  18 pondingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"Henk 
            17 van der Veer - Royal Netherlands Institute for Sea Research - ORCID:  19 van der Veer - Royal Netherlands Institute for Sea Research - ORCID: 
            18 0000-0001-5035-661X\"},{\"firstname\":\"Johannes  20 0000-0001-5035-661X\"},{\"firstname\":\"Johannes 
            19 IJ\",\"lastname\":\"Witte\",\"orcid\":null,\"affiliation\":\"Royal  21 IJ\",\"lastname\":\"Witte\",\"orcid\":null,\"affiliation\":\"Royal 
            20 Netherlands Institute for Sea  22 Netherlands Institute for Sea 
            21 arch\",\"iscorrespondingauthor\":null,\"contactemailaddress\":null}]", 23 arch\",\"iscorrespondingauthor\":null,\"contactemailaddress\":null}]",
            22   "dataset_persistent_id": "DOI:10.25850/nioz/7b.b.ud", 24   "dataset_persistent_id": "DOI:10.25850/nioz/7b.b.ud",
            n 23   "dates": "[{\"datefrom\":\"1980-03-01  n 25   "dates": "[{\"datefrom\":\"1960-01-01 
            24 00:00:00.000\",\"dateto\":\"2022-11-10  26 00:00:00.000\",\"dateto\":\"2023-12-31 
            25 00:00:00.000\",\"type\":\"collected\",\"information\":null}]", 27 00:00:00.000\",\"type\":\"collected\",\"information\":null}]",
            26   "deposit_date": "2022-11-30", 28   "deposit_date": "2022-11-30",
            n 27   "depositor": "Anieke van Leeuwen", n 29   "depositor": "Anieke van Leeuwen (anieke.van.leeuwen@nioz.nl)",
            28   "distribution_date": "2022-11-30", 30   "distribution_date": "2022-11-30",
            29   "distributor": "Research Data Management(NIOZ Royal Netherlands  31   "distributor": "Research Data Management(NIOZ Royal Netherlands 
            30 Institute for Sea Research)", 32 Institute for Sea Research)",
            n 31   "doi_date_published": "2023-01-13", n 33   "doi_date_published": "2023-01-13T09:31:31.8801691",
            32   "geographic_coverage": "[{\"place\":\"Mokbaai,  34   "geographic_coverage": "[{\"place\":\"Mokbaai, 
            33 null,\"longitude_1\":null,\"longitude_2\":null,\"latitude_1\":null}]", 35 null,\"longitude_1\":null,\"longitude_2\":null,\"latitude_1\":null}]",
            34   "groups": [], 36   "groups": [],
            35   "id": "6f7679d1-e403-4d94-8ad3-4eef406a0b50", 37   "id": "6f7679d1-e403-4d94-8ad3-4eef406a0b50",
            36   "isopen": true, 38   "isopen": true,
            37   "license_id": "CC0-1.0", 39   "license_id": "CC0-1.0",
            38   "license_title": "CC0 1.0", 40   "license_title": "CC0 1.0",
            39   "license_url": "https://creativecommons.org/publicdomain/zero/1.0/", 41   "license_url": "https://creativecommons.org/publicdomain/zero/1.0/",
            n 40   "maintainer": null, n 42   "maintainer": "Anieke",
            41   "maintainer_email": null, 43   "maintainer_email": "anieke.van.leeuwen@nioz.nl",
            42   "metadata_created": "2024-10-22T11:48:51.664735", 44   "metadata_created": "2024-10-22T11:48:51.664735",
            n 43   "metadata_modified": "2024-10-22T20:52:54.594642", n 45   "metadata_modified": "2025-12-18T13:55:31.980770",
            44   "name": "7bbud", 46   "name": "nioz-fyke-programme-stuifdijk",
            45   "notes": "The Royal NIOZ collects data on the Wadden Sea fish  47   "notes": "The Royal NIOZ collects data on the Wadden Sea fish 
            46 community using traditional fixed gear at a specific location (Lat  48 community using traditional fixed gear at a specific location (Lat 
            47 52.997N, Long 4.775E) since 1960. The fixed gear is known as a  49 52.997N, Long 4.775E) since 1960. The fixed gear is known as a 
            48 'kom-fyke' and is a passive fish trap consisting of a 200-m net  50 'kom-fyke' and is a passive fish trap consisting of a 200-m net 
            49 running from the beach towards deeper waters (the stretched mesh size  51 running from the beach towards deeper waters (the stretched mesh size 
            50 is 20 mm). This net guides migrating fish towards 2 chambers / traps  52 is 20 mm). This net guides migrating fish towards 2 chambers / traps 
            51 and into a fyke where they can be collected. The catch is collected  53 and into a fyke where they can be collected. The catch is collected 
            52 each day in spring (late March to early July) and in fall (late August  54 each day in spring (late March to early July) and in fall (late August 
            53 to early November) and netting is removed in the summer (due to algae)  55 to early November) and netting is removed in the summer (due to algae) 
            54 and winter (due to storms). This data summarises the catch information  56 and winter (due to storms). This data summarises the catch information 
            55 as seasonal catch per unit effort (total numbers of fish caught per  57 as seasonal catch per unit effort (total numbers of fish caught per 
            56 season, divided by the total number of fishing days in the season),  58 season, divided by the total number of fishing days in the season), 
            57 for each year 1980-2019. Seasons are spring and fall, as defined  59 for each year 1980-2019. Seasons are spring and fall, as defined 
            n 58 above.", n 60 above.\n\nNB Dec 2025: datafile was corrected to include a larger 
            61 period of years, two fyke locations (1 = Stuifdijk and 3 = 
            62 Schanserwaard), and a data correction due to earlier errors.",
            59   "num_resources": 1, 63   "num_resources": 1,
            n 60   "num_tags": 6, n 64   "num_tags": 7,
            61   "organization": { 65   "organization": {
            62     "approval_status": "approved", 66     "approval_status": "approved",
            63     "created": "2024-10-22T06:06:56.074257", 67     "created": "2024-10-22T06:06:56.074257",
            64     "description": "", 68     "description": "",
            65     "id": "bed2a893-3895-450b-bf4b-c74318003b1b", 69     "id": "bed2a893-3895-450b-bf4b-c74318003b1b",
            66     "image_url":  70     "image_url": 
            67 z.nl/application/files/1216/8924/5333/NIOZ-logo_witte_randi-2023.svg", 71 z.nl/application/files/1216/8924/5333/NIOZ-logo_witte_randi-2023.svg",
            68     "is_organization": true, 72     "is_organization": true,
            69     "name": "nioz", 73     "name": "nioz",
            70     "state": "active", 74     "state": "active",
            71     "title": "Royal Netherlands Institute for Sea Research", 75     "title": "Royal Netherlands Institute for Sea Research",
            72     "type": "organization" 76     "type": "organization"
            73   }, 77   },
            74   "owner_org": "bed2a893-3895-450b-bf4b-c74318003b1b", 78   "owner_org": "bed2a893-3895-450b-bf4b-c74318003b1b",
            75   "private": false, 79   "private": false,
            76   "production_date": "2023-01-13", 80   "production_date": "2023-01-13",
            77   "relationships_as_object": [], 81   "relationships_as_object": [],
            78   "relationships_as_subject": [], 82   "relationships_as_subject": [],
            79   "resources": [ 83   "resources": [
            80     { 84     {
            81       "cache_last_updated": null, 85       "cache_last_updated": null,
            82       "cache_url": null, 86       "cache_url": null,
            83       "created": "2024-10-22T11:48:52.012827", 87       "created": "2024-10-22T11:48:52.012827",
            84       "datastore_active": false, 88       "datastore_active": false,
            85       "format": "CSV", 89       "format": "CSV",
            86       "hash": "93af380db4f5867ecab6c12146a50c62", 90       "hash": "93af380db4f5867ecab6c12146a50c62",
            87       "id": "6570acbe-5f16-4985-8124-2b1394566ae1", 91       "id": "6570acbe-5f16-4985-8124-2b1394566ae1",
            88       "last_modified": "2024-10-22T11:48:51.974525", 92       "last_modified": "2024-10-22T11:48:51.974525",
            89       "metadata_modified": "2024-10-22T11:48:52.410451", 93       "metadata_modified": "2024-10-22T11:48:52.410451",
            90       "mimetype": "text/csv", 94       "mimetype": "text/csv",
            91       "mimetype_inner": null, 95       "mimetype_inner": null,
            92       "name": "Stuifdijk_1980-2019_for_DAS.csv", 96       "name": "Stuifdijk_1980-2019_for_DAS.csv",
            93       "package_id": "6f7679d1-e403-4d94-8ad3-4eef406a0b50", 97       "package_id": "6f7679d1-e403-4d94-8ad3-4eef406a0b50",
            94       "position": 0, 98       "position": 0,
            95       "resource_type": null, 99       "resource_type": null,
            96       "size": 2282, 100       "size": 2282,
            97       "state": "active", 101       "state": "active",
            98       "url":  102       "url": 
            99 5f16-4985-8124-2b1394566ae1/download/stuifdijk_1980-2019_for_das.csv", 103 5f16-4985-8124-2b1394566ae1/download/stuifdijk_1980-2019_for_das.csv",
            100       "url_type": "upload" 104       "url_type": "upload"
            101     } 105     }
            102   ], 106   ],
            103   "state": "active", 107   "state": "active",
            104   "subject": "Earth and Environmental Sciences", 108   "subject": "Earth and Environmental Sciences",
            105   "tags": [ 109   "tags": [
            106     { 110     {
            107       "display_name": "NIOZ fyke", 111       "display_name": "NIOZ fyke",
            108       "id": "7df221d1-3d43-4569-a0b1-415abe3f0058", 112       "id": "7df221d1-3d43-4569-a0b1-415abe3f0058",
            109       "name": "NIOZ fyke", 113       "name": "NIOZ fyke",
            110       "state": "active", 114       "state": "active",
            111       "vocabulary_id": null 115       "vocabulary_id": null
            112     }, 116     },
            113     { 117     {
            114       "display_name": "cpue", 118       "display_name": "cpue",
            115       "id": "0eabbeaf-8bda-46df-b2e1-cc952862e0b5", 119       "id": "0eabbeaf-8bda-46df-b2e1-cc952862e0b5",
            116       "name": "cpue", 120       "name": "cpue",
            117       "state": "active", 121       "state": "active",
            118       "vocabulary_id": null 122       "vocabulary_id": null
            119     }, 123     },
            120     { 124     {
            121       "display_name": "fish", 125       "display_name": "fish",
            122       "id": "56c78665-53db-47d1-b70f-c9e0dd3bb679", 126       "id": "56c78665-53db-47d1-b70f-c9e0dd3bb679",
            123       "name": "fish", 127       "name": "fish",
            124       "state": "active", 128       "state": "active",
            125       "vocabulary_id": null 129       "vocabulary_id": null
            126     }, 130     },
            127     { 131     {
            128       "display_name": "fyke", 132       "display_name": "fyke",
            129       "id": "e7c8229a-3328-47ed-97f2-4b22dad5fb4a", 133       "id": "e7c8229a-3328-47ed-97f2-4b22dad5fb4a",
            130       "name": "fyke", 134       "name": "fyke",
            131       "state": "active", 135       "state": "active",
            132       "vocabulary_id": null 136       "vocabulary_id": null
            133     }, 137     },
            134     { 138     {
            135       "display_name": "fyke fishing", 139       "display_name": "fyke fishing",
            136       "id": "b1a4d2ee-9c23-45c7-b7d5-439ebb042a4f", 140       "id": "b1a4d2ee-9c23-45c7-b7d5-439ebb042a4f",
            137       "name": "fyke fishing", 141       "name": "fyke fishing",
            138       "state": "active", 142       "state": "active",
            139       "vocabulary_id": null 143       "vocabulary_id": null
            140     }, 144     },
            141     { 145     {
            142       "display_name": "kom-fyke", 146       "display_name": "kom-fyke",
            143       "id": "395c4d19-373d-4fbd-ae8c-324baa6f565b", 147       "id": "395c4d19-373d-4fbd-ae8c-324baa6f565b",
            144       "name": "kom-fyke", 148       "name": "kom-fyke",
            145       "state": "active", 149       "state": "active",
            146       "vocabulary_id": null 150       "vocabulary_id": null
            n n 151     },
            152     {
            153       "display_name": "nioz fyke",
            154       "id": "a5635778-6fe3-4b5d-a74b-8a7f89699b6d",
            155       "name": "nioz fyke",
            156       "state": "active",
            157       "vocabulary_id": null
            147     } 158     }
            148   ], 159   ],
            149   "title": "NIOZ fyke programme Stuifdijk", 160   "title": "NIOZ fyke programme Stuifdijk",
            150   "type": "dataset", 161   "type": "dataset",
            t 151   "url": "https://dataportal.nioz.nl/doi/10.25850/nioz/7b.b.ud", t 162   "url": "https://doi.org/10.25850/nioz/7b.b.ud",
            152   "version": "9" 163   "version": "1"
            153 } 164 }