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The DEMERSTOCK project aims to provide biological data on seven species of demersal fish caught on the reefs of Mayotte, so that models can be used to assess stock status. The acquisition of data such as the size, weight, maturity stage and age of the individuals caught is essential for assessing the state of commercial fish populations and stocks. To carry out this study, the following species were selected on the basis of their importance in local fisheries: bluefin trevally (Caranx melampygus), green jobfish (Aprion virescens), rusty jobfish (Aphareus rutilans), redmouth groupper (Aethaloperca rogaa), yellow-edged lyretail (Variola louti) and two deep-water red snapper (Etelis boweni and Etelis carbunculus). The project is based on collaboration with local fishermen and fishmongers to sample the defined species.
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SEANOE.","AccessConstraints":null,"UDate":"2026-05-12","CDate":"2026-03-16","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2026-05-14 01:45:06.673000","timezone_type":1,"timezone":"+00:00"},"CheckedFlag":0,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"StatusID":1,"DasType":"Data","DasTypeID":1,"DasOrigin":"Monitoring: field survey","Progress":"Completed","AccessConstraint":"CC 0 (No Rights Reserved)","AccConstrEN":"CC 0 (No Rights Reserved)","AccConstrDisplay":" To the extent possible under law, the person who associated CC0 with this dataset has waived all copyright and related or neighboring rights to this dataset.","License":"https://creativecommons.org/publicdomain/zero/1.0/","AccConstrDescription":"CC0 enables scientists, educators, artists and other creators and owners of copyright- or database-protected content to waive those interests in their works and thereby place them as completely as possible in the public domain, so that others may freely build upon, enhance and reuse the works for any purposes without restriction under copyright or database law.","Lineage":null,"AccConID":19,"DOI":"10.17882/97287"},"dois":null,"spcols":[{"SpColID":552,"SpName":"EMODNET"},{"SpColID":39,"SpName":"VLIZ Acknowledged Publications"}],"keywords":[{"ThesaurusTerm":"Regional","ThesTypID":31,"ThesType":"INSPIRE Spatial Scope","Code":null,"Description":null,"OrigThesTerm":"Regional","DutchTerm":"Regionaal","URI":null,"DasKeywordDescr":null}],"parents":null,"children":null,"othrel":null,"othrelrev":null,"ownerships":[{"OrderNr":1,"Surname":"Deniel","Firstname":"Alizée","Initials":null,"PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":1,"Acronym":"OCEAC","OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":2,"PersID":46281,"InsID":15653,"FullInstitute":"Ocea Consult'","RoleID":34,"Role":"Dataset publisher","OrigName":null,"StandardName":"Ocea Consult'","FullAcronym":"OCEAC","ORC":null,"ROR":null},{"OrderNr":2,"Surname":"Collet","Firstname":"Adeline","Initials":null,"PerPublicFlag":1,"AdrID":172118,"Email":"adeline.collet@ocea.re","InsPublicFlag":1,"Acronym":"OCEAC","OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":2,"PersID":46282,"InsID":15653,"FullInstitute":"Ocea Consult'","RoleID":24,"Role":"Contact","OrigName":null,"StandardName":"Ocea Consult'","FullAcronym":"OCEAC","ORC":null,"ROR":null}],"taxterms":[{"DasTaxtTypID":1,"DasTaxtType":"Taxonomic coverage","TaxtID":48476,"TaxTerm":"Aethaloperca rogaa (Forsskål, 1775)","AphiaID":218168,"DutchTerm":null},{"DasTaxtTypID":1,"DasTaxtType":"Taxonomic coverage","TaxtID":21568,"TaxTerm":"Carangidae","AphiaID":125523,"DutchTerm":null},{"DasTaxtTypID":1,"DasTaxtType":"Taxonomic coverage","TaxtID":36265,"TaxTerm":"Caranx melampygus","AphiaID":218419,"DutchTerm":null},{"DasTaxtTypID":1,"DasTaxtType":"Taxonomic coverage","TaxtID":21579,"TaxTerm":"Lutjanidae","AphiaID":151453,"DutchTerm":"Snapper"},{"DasTaxtTypID":1,"DasTaxtType":"Taxonomic coverage","TaxtID":23936,"TaxTerm":"Teleostei","AphiaID":293496,"DutchTerm":null}],"frameworks":null,"otherterms":null,"temporal":[{"DasDateID":7755,"StartYear":2022,"EndYear":2023,"StartDay":27,"EndDay":28,"StartDate":"2022-09-27","EndDate":"2023-09-28","DasDate":null,"Resolution":"Daily","ResolutionNL":"Dagelijks","Notes":null,"StartMonth0":9,"StartMonth":"September","StartMonthNL":"September","EndMonth0":9,"EndMonth":"September","EndMonthNL":"September","Progress":"Completed","ProgressNL":"Afgelopen"}],"geographical":[{"GeoTerm":"Overlapping claim Mayotte: France / Comores","DasGeoID":15366,"DasGeoTerm":null,"DasID":9036,"GeotID":9644,"X":32.5854,"Y":-29.569600000000001,"MaxX":49.268000000000001,"MaxY":-8.5185999999999993,"StationName":null,"Precision":null,"CoordSystID":null,"GeoDatumID":null,"OrigCoordMinX":null,"OrigCoordMinY":null,"OrigCoordMaxX":null,"OrigCoordMaxY":null,"OrderNr":null,"Projection":null,"GeoDatum":null,"GeoObjectID":48944,"OrigGeoTerm":"Overlapping claim Mayotte: France / Comores","DutchTerm":null}],"meastypes":[{"MethID":244,"DasMeasTypID":24304,"DasMeasType":"","Matrix":null,"MatrixNL":null,"Parameter":null,"ParameterNL":null,"Description":null,"Unit":null,"Methodology":"Otolith length determination","Protocol":1,"QualityControl":null,"Precision":null,"Detectionlimit":null,"Instrument":null,"InstrumentUrl":null,"MethFull":"Gathering of faeces in surroundings of 20 nests right before hatchin of eggs. Lab analysis: faeces are washed and food remains are seperated and analysed under binocular. Length of fish otoliths are identified and measured under microscope to a precision of 0,01 mm.