Changes

On July 21, 2026, 1:31:16 PM UTC, ckan_admin:
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            f 1 { f 1 {
            2   "author": "Jan J. Beukema (Royal Netherlands Institute for Sea  2   "author": "Jan J. Beukema (Royal Netherlands Institute for Sea 
            3 Research)", 3 Research)",
            4   "author_email": "rdm@nioz.nl", 4   "author_email": "rdm@nioz.nl",
            5   "code": "7b.b.sh", 5   "code": "7b.b.sh",
            6   "contributor": "Royal Netherlands Institute for Sea Research  6   "contributor": "Royal Netherlands Institute for Sea Research 
            7 (NIOZ)", 7 (NIOZ)",
            8   "creator_user_id": "e04e2c5d-e6fd-4342-a1e3-96187e9d6fcc", 8   "creator_user_id": "e04e2c5d-e6fd-4342-a1e3-96187e9d6fcc",
            9   "creators": "[{\"firstname\":\"Jan  9   "creators": "[{\"firstname\":\"Jan 
            10 :\"Beukema\",\"orcid\":\"0000-0003-3458-8087\",\"affiliation\":\"Royal  10 :\"Beukema\",\"orcid\":\"0000-0003-3458-8087\",\"affiliation\":\"Royal 
            11 Netherlands Institute for Sea  11 Netherlands Institute for Sea 
            12 hor\":true,\"contactemailaddress\":\"rdm@nioz.nl\",\"formatted\":\"Jan  12 hor\":true,\"contactemailaddress\":\"rdm@nioz.nl\",\"formatted\":\"Jan 
            13 J. Beukema - Royal Netherlands Institute for Sea Research - ORCID:  13 J. Beukema - Royal Netherlands Institute for Sea Research - ORCID: 
            14 0000-0003-3458-8087 - Corresponding Author -  14 0000-0003-3458-8087 - Corresponding Author - 
            15 \"Rob\",\"lastname\":\"Dekker\",\"orcid\":null,\"affiliation\":\"Royal  15 \"Rob\",\"lastname\":\"Dekker\",\"orcid\":null,\"affiliation\":\"Royal 
            16 Netherlands Institute for Sea  16 Netherlands Institute for Sea 
            17 spondingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"Rob  17 spondingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"Rob 
            18 Dekker - Royal Netherlands Institute for Sea Research - ORCID:  18 Dekker - Royal Netherlands Institute for Sea Research - ORCID: 
            19 \"},{\"firstname\":\"Wim\",\"lastname\":\"de  19 \"},{\"firstname\":\"Wim\",\"lastname\":\"de 
            20 Bruin\",\"orcid\":null,\"affiliation\":\"Royal Netherlands Institute  20 Bruin\",\"orcid\":null,\"affiliation\":\"Royal Netherlands Institute 
            21 for Sea  21 for Sea 
            22 spondingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"Wim  22 spondingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"Wim 
            23 de Bruin - Royal Netherlands Institute for Sea Research - ORCID:  23 de Bruin - Royal Netherlands Institute for Sea Research - ORCID: 
            24 ap\",\"lastname\":\"Zuidewind\",\"orcid\":null,\"affiliation\":\"Royal  24 ap\",\"lastname\":\"Zuidewind\",\"orcid\":null,\"affiliation\":\"Royal 
            25 Netherlands Institute for Sea  25 Netherlands Institute for Sea 
            26 pondingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"Jaap  26 pondingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"Jaap 
            27 Zuidewind - Royal Netherlands Institute for Sea Research - ORCID:  27 Zuidewind - Royal Netherlands Institute for Sea Research - ORCID: 
            28 .J.J.\",\"lastname\":\"Jansen\",\"orcid\":null,\"affiliation\":\"Royal  28 .J.J.\",\"lastname\":\"Jansen\",\"orcid\":null,\"affiliation\":\"Royal 
            29 Netherlands Institute for Sea  29 Netherlands Institute for Sea 
            30 ndingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"M.J.J.  30 ndingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"M.J.J. 
            31 Jansen - Royal Netherlands Institute for Sea Research - ORCID:  31 Jansen - Royal Netherlands Institute for Sea Research - ORCID: 
            32 nis\",\"lastname\":\"Waasdorp\",\"orcid\":null,\"affiliation\":\"Royal  32 nis\",\"lastname\":\"Waasdorp\",\"orcid\":null,\"affiliation\":\"Royal 
            33 Netherlands Institute for Sea  33 Netherlands Institute for Sea 
            34 ndingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"Dennis  34 ndingauthor\":null,\"contactemailaddress\":null,\"formatted\":\"Dennis 
            35 Waasdorp - Royal Netherlands Institute for Sea Research - ORCID:  35 Waasdorp - Royal Netherlands Institute for Sea Research - ORCID: 
            36 \"}]", 36 \"}]",
            37   "dataset_persistent_id": "DOI:10.25850/nioz/7b.b.sh", 37   "dataset_persistent_id": "DOI:10.25850/nioz/7b.b.sh",
            38   "dates": "[{\"datefrom\":\"1967-07-04  38   "dates": "[{\"datefrom\":\"1967-07-04 
            39 00:00:00.000\",\"dateto\":\"2019-09-18  39 00:00:00.000\",\"dateto\":\"2019-09-18 
            40 00:00:00.000\",\"type\":\"collected\",\"information\":\"Runtime  40 00:00:00.000\",\"type\":\"collected\",\"information\":\"Runtime 
            41 monitoring project\",\"formatted\":\"collected from: 04/07/1967 to:  41 monitoring project\",\"formatted\":\"collected from: 04/07/1967 to: 
            42 18/09/2019 Runtime monitoring project\"}]", 42 18/09/2019 Runtime monitoring project\"}]",
            43   "deposit_date": "2024-07-22", 43   "deposit_date": "2024-07-22",
            44   "depositor": "Eric Epping (eric.epping@nioz.nl)", 44   "depositor": "Eric Epping (eric.epping@nioz.nl)",
            45   "distribution_date": "2024-07-22", 45   "distribution_date": "2024-07-22",
            46   "distributor": "Research Data Management(NIOZ Royal Netherlands  46   "distributor": "Research Data Management(NIOZ Royal Netherlands 
            47 Institute for Sea Research)", 47 Institute for Sea Research)",
            48   "doi_date_published": "2024-10-15T08:15:19.7572881", 48   "doi_date_published": "2024-10-15T08:15:19.7572881",
            49   "funding_references": "[{\"name\":\"NWO -  49   "funding_references": "[{\"name\":\"NWO - 
            50 NIOZ\",\"awardnumber\":null,\"awardtitle\":\"NIOZ Basic  50 NIOZ\",\"awardnumber\":null,\"awardtitle\":\"NIOZ Basic 
            51 funding\",\"formatted\":\"NWO - NIOZ - - NIOZ Basic funding\"}]", 51 funding\",\"formatted\":\"NWO - NIOZ - - NIOZ Basic funding\"}]",
            52   "geographic_coverage":  52   "geographic_coverage": 
            53 ngitude_2\":\"4.80732\",\"longitude_1\":\"4.91848\",\"formatted\":\"N:  53 ngitude_2\":\"4.80732\",\"longitude_1\":\"4.91848\",\"formatted\":\"N: 
            54 52.98266 S: 52.89846 E: 4.91848 W: 4.80732\"}]", 54 52.98266 S: 52.89846 E: 4.91848 W: 4.80732\"}]",
            55   "groups": [], 55   "groups": [],
            56   "id": "9d244838-12bb-484f-a091-ec4f64a044f9", 56   "id": "9d244838-12bb-484f-a091-ec4f64a044f9",
            57   "isopen": true, 57   "isopen": true,
            58   "license_id": "CC0-1.0", 58   "license_id": "CC0-1.0",
            59   "license_title": "CC0 1.0", 59   "license_title": "CC0 1.0",
            60   "license_url": "https://creativecommons.org/publicdomain/zero/1.0/", 60   "license_url": "https://creativecommons.org/publicdomain/zero/1.0/",
            61   "maintainer": "Eric", 61   "maintainer": "Eric",
            62   "maintainer_email": "eric.epping@nioz.nl", 62   "maintainer_email": "eric.epping@nioz.nl",
            63   "metadata_created": "2024-10-22T18:05:04.031265", 63   "metadata_created": "2024-10-22T18:05:04.031265",
            n 64   "metadata_modified": "2024-10-23T11:32:45.644081", n 64   "metadata_modified": "2026-07-21T13:31:16.580723",
            65   "name": "balgzand-macrozoobenthos-database-1967---2019", 65   "name": "balgzand-macrozoobenthos-database-1967---2019",
            66   "notes": "The Balgzand macrozoobenthos programme was set up  66   "notes": "The Balgzand macrozoobenthos programme was set up 
            67 initially to study the secondary production of the macrobenthic  67 initially to study the secondary production of the macrobenthic 
            68 invertebrates of the Wadden Sea. This happened within the framework of  68 invertebrates of the Wadden Sea. This happened within the framework of 
            69 the International Biological Programme (IBP) (1967), an initiative to  69 the International Biological Programme (IBP) (1967), an initiative to 
            70 study the biological productivity of various ecosystems  70 study the biological productivity of various ecosystems 
            71 worldwide.\nThe programma was initially meant to study the  71 worldwide.\nThe programma was initially meant to study the 
            72 productivity of biomass of larger macrozoobenthic invertebrate in- and  72 productivity of biomass of larger macrozoobenthic invertebrate in- and 
            73 epifauna. The focus was on species that easily could be separated into  73 epifauna. The focus was on species that easily could be separated into 
            74 cohorts (year classes). This meant that bivalve molluscs that deposit  74 cohorts (year classes). This meant that bivalve molluscs that deposit 
            75 clear growth marks in their shells had priority. Small items, e.g.  75 clear growth marks in their shells had priority. Small items, e.g. 
            76 small polychaetes, were ignored as contributing very little to the  76 small polychaetes, were ignored as contributing very little to the 
            77 total invertebrate benthic biomass.\nTo study the annual variability  77 total invertebrate benthic biomass.\nTo study the annual variability 
            78 in benthic biomass, a frequent year-around sampling programme on 3  78 in benthic biomass, a frequent year-around sampling programme on 3 
            79 permanent quadrats was developed and started in 1967. These quadrats  79 permanent quadrats was developed and started in 1967. These quadrats 
            80 were selected based on sediment composition and tidal elevation, to  80 were selected based on sediment composition and tidal elevation, to 
            81 cover a variety of sediments within Balgzand. Station Dk was nearshore  81 cover a variety of sediments within Balgzand. Station Dk was nearshore 
            82 with sandy mud, around mean tide level, station Sl was relatively near  82 with sandy mud, around mean tide level, station Sl was relatively near 
            83 by Dk but closer to a tidal gully, on a sandy sediment and a tidal  83 by Dk but closer to a tidal gully, on a sandy sediment and a tidal 
            84 elevation of \u00b1 10 cm above mean tide level, station Mz was on the  84 elevation of \u00b1 10 cm above mean tide level, station Mz was on the 
            85 northern tip of Balgzand, around mean low tide level with relatively  85 northern tip of Balgzand, around mean low tide level with relatively 
            86 course sand.\nOn these quadrats, sampled roughly once per month, boxes  86 course sand.\nOn these quadrats, sampled roughly once per month, boxes 
            87 of \u00b1 0.1 m\u00b2 were dug out, and additionally round cores of  87 of \u00b1 0.1 m\u00b2 were dug out, and additionally round cores of 
            88 0.009 m\u00b2 were taken. Based on the results of these frequent  88 0.009 m\u00b2 were taken. Based on the results of these frequent 
            89 samplings an additional series of 12 transects, scattered over  89 samplings an additional series of 12 transects, scattered over 
            90 intertidal Balgzand, was chosen to cover the variability of the study  90 intertidal Balgzand, was chosen to cover the variability of the study 
            91 area. These 12 transects were sampled twice a year, in late winter to  91 area. These 12 transects were sampled twice a year, in late winter to 
            92 estimate the benthic biomass at the lowest level during the year, and  92 estimate the benthic biomass at the lowest level during the year, and 
            93 in late summer at the moment of maximal benthic biomass values and to  93 in late summer at the moment of maximal benthic biomass values and to 
            94 estimate the recruitment of the benthic invertebrates in the previous  94 estimate the recruitment of the benthic invertebrates in the previous 
            95 spring and early summer. The transects were explored first in summer  95 spring and early summer. The transects were explored first in summer 
            96 1968, the results are not incorporated in the database. The results  96 1968, the results are not incorporated in the database. The results 
            97 from late winter 1969 onwards are included in the database. From  97 from late winter 1969 onwards are included in the database. From 
            98 summer 1969 onwards the frequency of sampling of the the 3 permanent  98 summer 1969 onwards the frequency of sampling of the the 3 permanent 
            99 quadrats was reduced to 4 times per year, from 1988 onwards to twice  99 quadrats was reduced to 4 times per year, from 1988 onwards to twice 
            100 per year.", 100 per year.",
            101   "num_resources": 13, 101   "num_resources": 13,
            102   "num_tags": 9, 102   "num_tags": 9,
            103   "organization": { 103   "organization": {
            104     "approval_status": "approved", 104     "approval_status": "approved",
            105     "created": "2024-10-22T06:06:56.074257", 105     "created": "2024-10-22T06:06:56.074257",
            106     "description": "", 106     "description": "",
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            t 108     "image_url":  t 108     "image_url": "https://ckan.nioz.nl/NIOZ.svg",
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            110     "is_organization": true, 109     "is_organization": true,
            111     "name": "nioz", 110     "name": "nioz",
            112     "state": "active", 111     "state": "active",
            113     "title": "Royal Netherlands Institute for Sea Research", 112     "title": "Royal Netherlands Institute for Sea Research",
            114     "type": "organization" 113     "type": "organization"
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            117   "private": false, 116   "private": false,
            118   "production_date": "2024-10-15", 117   "production_date": "2024-10-15",
            119   "related_identifier":  118   "related_identifier": 
            120 "https://doi.org/10.1016/0077-7579(74)90028-3", 119 "https://doi.org/10.1016/0077-7579(74)90028-3",
            121   "relationships_as_object": [], 120   "relationships_as_object": [],
            122   "relationships_as_subject": [], 121   "relationships_as_subject": [],
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            468       "vocabulary_id": null 467       "vocabulary_id": null
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            476     } 475     }
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            479   "type": "dataset", 478   "type": "dataset",
            480   "url": "https://doi.org/10.25850/nioz/7b.b.sh", 479   "url": "https://doi.org/10.25850/nioz/7b.b.sh",
            481   "version": "1" 480   "version": "1"
            482 } 481 }