{"datasetrec":{"DasID":5850,"Acronym":null,"StandardTitle":"2015_PHD_VERHELST_EEL - Acoustic telemetry data for European eel (Anguilla anguilla) in the Scheldt estuary and southern North Sea (Belgium)","OrigTitle":null,"OrigTitleLangID":null,"OrigTitleLangCode":null,"OrigTitleLang":null,"OrigTitleLangNL":null,"VersionName":"1.0","ContactEmail":null,"VersionDate":null,"VersionDay":18,"VersionMonth":9,"VersionYear":2024,"SizeReference":"81,302 records","EngAbstract":"This is an acoustic telemetry dataset published by Ghent University. It contains animal (fish) tracking data collected by the Permanent Belgian Acoustic Receiver Network <a href=\"https:\/\/lifewatch.be\/en\/fish-acoustic-receiver-network\"> (https:\/\/lifewatch.be\/en\/fish-acoustic-receiver-network)<\/a> for the project\/study 2015_phd_verhelst_eel, using VEMCO tags (V13) and receivers (VR2AR, VR2Tx, VR2W). In total 136 female individuals of European eel (<i>Anguilla anguilla<\/i>) were captured, tagged and released between 2015 and 2018 in the Scheldt estuary, to study their migration behaviour - especially their use of selective tidal stream transport - in a tidal system without migration barriers.","EngDescr":"<p>Large estuaries with a complete salinity gradient from a tidal freshwater zone to marine have become rare due to water regulating constructions such as sluices, shipping locks, water pumping stations and dams. However, the Scheldt estuary in Belgium still has an extensive estuary of ca 160 km. Diadromous fish have to overcome substantial distances which come with a high energetic cost. Due to the high energetic cost of migration and the low adult survival, some of these species have developed semelparity. Consequently, a bioenergetic trade-off between migration and reproduction may exist for semelparous fish species, especially since many will stop feeding during migration: the smaller the energy expenditure during migration, the larger the amount of energy that may remain available for gonad maturation. An example where migration can have important bioenergetic repercussions is migration through strong tidal systems. To reduce energy loss in such systems, fish may perform selective tidal stream transport (STST): an animal ascends into the water column with the appropriate tide and rests on or in the bottom during the opposite tide. However, the use of STST by silver European eels is still controversial. In this study, we found strong evidence that silver European eels apply STST. The results illustrate that eels can distinguish between ebb and flood and suggest that tides play a role in orientation, either directly or indirectly. The general migration speed was higher in the downstream part of the estuary compared to the upstream part, while tidal migration speed was equal in both parts, indicating that eels migrated more consistently in the downstream part. The results of this study give insight in how a diadromous species migrates through an estuary and underline the importance of the tides.<\/p><br\/>\r\n\r\n<p>This dataset was collected using infrastructure provided by VLIZ and INBO funded by the Research Foundation - Flanders (FWO) as part of the Belgian contribution to LifeWatch. Data were exported from the European Tracking Network data portal <a href=\"http:\/\/www.lifewatch.be\/etn\"> (http:\/\/www.lifewatch.be\/etn) <\/a> developed by VLIZ using the ETN R package <a href=\"https:\/\/inbo.github.io\/etn\/\"> (https:\/\/inbo.github.io\/etn\/) <\/a> developed by INBO. Field definitions can be found at <a href=\"https:\/\/inbo.github.io\/etn\/articles\/etn_fields.html\">https:\/\/inbo.github.io\/etn\/articles\/etn_fields.html<\/a>.<\/p>","OrigAbstract":null,"OrigDescr":null,"Comments":null,"ReleaseDate":"Aug 26 2024 12:00AM","ReleaseDate0":"2024-08-26","OrigDescrLang":null,"EmbargoDate":null,"OrigDescrLangNL":null,"OrigLangCode":null,"OrigLangCodeExtended":null,"OrigLangID":null,"DescrCompFlag":0,"DescrTransFlag":0,"Citation":"Verhelst, P.; Reubens, J.; Coeck, J.; De Maerteleire, N.; Desmet, P.; Gelaude, E.; Mouton, A.; Pieters, S.; Reyserhove, L.; Robberechts, K.; Moens, T.; (2020): 2015_PHD_VERHELST_EEL - Acoustic telemetry data for European eel (Anguilla anguilla) in the Scheldt estuary and southern North Sea (Belgium). Marine Data Archive.","AccessConstraints":null,"UDate":"2026-01-26","CDate":"2017-11-24","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2026-04-03 01:47:42.174469","timezone_type":1,"timezone":"+02:00"},"CheckedFlag":0,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":1,"FreshFlag":1,"BrackishFlag":1,"TerrestrialFlag":0,"StatusID":1,"DasType":"Data","DasTypeID":1,"DasOrigin":"Sensor platform","Progress":"In Progress","AccessConstraint":"CC 0 (No Rights Reserved)","AccConstrEN":"CC 0 (No Rights Reserved)","AccConstrDisplay":"<a rel=\"license\" href=\"https:\/\/creativecommons.org\/publicdomain\/zero\/1.0\/\" target=\"_blank\"><img alt=\"CC0\" style=\"border:0px;height:15px;width:80px;vertical-align:middle;\" src=\"https:\/\/www.marinespecies.org\/aphia\/images\/cc\/cc-zero.png\" \/><\/a> 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":"Prior to publication data undergo quality control checked which are described in https:\/\/github.com\/EMODnet\/EMODnetBiocheck?tab=readme-ov-file#understanding-the-output","AccConID":19,"GBIF_UUID":"638cc552-4ca9-43c0-8cad-d3f570a4572e"},"dois":[{"DOIID":434,"PublicationYear":2020,"DOI":"10.14284\/434","Citation":"Verhelst, P.; Reubens, J.; Coeck, J.; De Maerteleire, N.; Desmet, P.; Gelaude, E.; Mouton, A.; Pieters, S.; Reyserhove, L.; Robberechts, K.; Moens, T.; (2020): 2015_PHD_VERHELST_EEL - Acoustic telemetry data for European eel (Anguilla anguilla) in the Scheldt estuary and southern North Sea (Belgium). Marine Data Archive.","MDAID":"VLIZ_00000844_5fb7c680b7b43496098549","Moratorium":0,"MDAURL":"https:\/\/mda.vliz.be\/directlink.php?fid=VLIZ_00000844_5fb7c680b7b43496098549","CurrentDOI":1,"Active":1,"URL":null,"downloadURL":"https:\/\/mda.vliz.be\/download.php?file=VLIZ_00000844_5fb7c680b7b43496098549"}],"spcols":[{"SpColID":619,"SpName":"available through EurOBIS"},{"SpColID":131,"SpName":"Belgian marine datasets"},{"SpColID":552,"SpName":"EMODNET"},{"SpColID":1000,"SpName":"European Tracking Network"}],"keywords":[{"ThesaurusTerm":"Acoustic telemetry","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":"c_3563933f","Description":null,"OrigThesTerm":"Acoustic telemetry","DutchTerm":null,"URI":"http:\/\/aims.fao.org\/aos\/agrovoc\/c_3563933f","DasKeywordDescr":null},{"ThesaurusTerm":"Acoustic Telemetry","ThesTypID":30,"ThesType":"ETN Context","Code":null,"Description":"Acoustic telemetry uses acoustic signals (also called \u2018pings\u2019) which propagate into the water, and are detected by acoustic receivers","OrigThesTerm":"Acoustic Telemetry","DutchTerm":"Akoestische Telemetrie","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"ANE, North Sea","ThesTypID":34,"ThesType":"ASFA Geoterms","Code":null,"Description":null,"OrigThesTerm":"ANE, North Sea","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Animal movement","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"Animal movement","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Animal tracking","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"Animal tracking","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Bio-geographical regions","ThesTypID":7,"ThesType":"INSPIRE themes","Code":"br","Description":"Areas of relatively homogeneous ecological conditions with common characteristics.","OrigThesTerm":"Bio-geographical regions","DutchTerm":"Biogeografische gebieden","URI":"https:\/\/inspire.ec.europa.eu\/theme\/br","DasKeywordDescr":null},{"ThesaurusTerm":"Biologging","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"Biologging","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Biota","ThesTypID":16,"ThesType":"INSPIRE Topics","Code":"biota","Description":"Flora and\/or fauna in natural environment.","OrigThesTerm":"Biota","DutchTerm":"Biota","URI":"https:\/\/inspire.ec.europa.eu\/metadata-codelist\/TopicCategory\/biota","DasKeywordDescr":null},{"ThesaurusTerm":"Data","ThesTypID":8,"ThesType":"Assemble KO Types","Code":null,"Description":null,"OrigThesTerm":"Data","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Environment","ThesTypID":16,"ThesType":"INSPIRE Topics","Code":"environment","Description":"Environmental resources, protection and conservation.","OrigThesTerm":"Environment","DutchTerm":"Milieu","URI":"https:\/\/inspire.ec.europa.eu\/metadata-codelist\/TopicCategory\/environment","DasKeywordDescr":null},{"ThesaurusTerm":"EurOBIS calculated BBOX","ThesTypID":35,"ThesType":"Geoterms no link Marine Regions","Code":null,"Description":null,"OrigThesTerm":"EurOBIS calculated BBOX","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Geoscientific Information","ThesTypID":16,"ThesType":"INSPIRE Topics","Code":"geoscientificInformation","Description":"Information pertaining to earth sciences.","OrigThesTerm":"Geoscientific Information","DutchTerm":"Geowetenschappelijke informatie","URI":"https:\/\/inspire.ec.europa.eu\/metadata-codelist\/TopicCategory\/geoscientificInformation","DasKeywordDescr":null},{"ThesaurusTerm":"Habitats and biotopes","ThesTypID":7,"ThesType":"INSPIRE themes","Code":"hb","Description":"Geographical areas characterised by specific ecological conditions, processes, structure, and (life support) functions that physically support the organisms that live there. Includes terrestrial and aquatic areas distinguished by geographical, abiotic and biotic features, whether entirely natural or semi-natural.","OrigThesTerm":"Habitats and biotopes","DutchTerm":"Habitats en biotopen","URI":"https:\/\/inspire.ec.europa.eu\/theme\/hb","DasKeywordDescr":null},{"ThesaurusTerm":"LifeWatch","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"LifeWatch","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Metadata non conformant","ThesTypID":17,"ThesType":"INSPIRE Conformity","Code":null,"Description":null,"OrigThesTerm":"Metadata non conformant","DutchTerm":"Metadata niet conform","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Metadata not evaluated","ThesTypID":17,"ThesType":"INSPIRE Conformity","Code":null,"Description":null,"OrigThesTerm":"Metadata not evaluated","DutchTerm":"Metadata niet gecontroleerd","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Migration","ThesTypID":2,"ThesType":"CSA Technology Research Database Master Thesaurus","Code":null,"Description":null,"OrigThesTerm":"Migration","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"No limitations to public access","ThesTypID":20,"ThesType":"INSPIRE Limitations on public access","Code":"http:\/\/inspire.ec.europa.eu\/metadata-codelist\/LimitationsOnPublicAccess\/noLimitations","Description":"There are no limitations on public access to spatial data sets and services.","OrigThesTerm":"No limitations to public access","DutchTerm":"Geen beperkingen op publieke toegang","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Oceans","ThesTypID":16,"ThesType":"INSPIRE Topics","Code":"oceans","Description":"Features and characteristics of salt water bodies (excluding inland waters).","OrigThesTerm":"Oceans","DutchTerm":"Oceanen","URI":"https:\/\/inspire.ec.europa.eu\/metadata-codelist\/TopicCategory\/oceans","DasKeywordDescr":null},{"ThesaurusTerm":"Sea regions","ThesTypID":7,"ThesType":"INSPIRE themes","Code":"sr","Description":"Physical conditions of seas and saline water bodies divided into regions and sub-regions with common characteristics.","OrigThesTerm":"Sea regions","DutchTerm":"Zeegebieden","URI":"https:\/\/inspire.ec.europa.eu\/theme\/sr","DasKeywordDescr":null},{"ThesaurusTerm":"VEMCO","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"VEMCO","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"WGS84 (EPSG:4326)","ThesTypID":18,"ThesType":"Coordinate Reference System","Code":null,"Description":null,"OrigThesTerm":"WGS84 (EPSG:4326)","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"XYZ ASCII","ThesTypID":19,"ThesType":"Spatial data formats","Code":null,"Description":null,"OrigThesTerm":"XYZ ASCII","DutchTerm":null,"URI":null,"DasKeywordDescr":null}],"parents":[{"DasID":5912,"Acronym":null,"EngAbstract":"The European Tracking Network is a pan-European biotelemetry network that aims at the integration of regional telemetry initiatives into a sustainable, efficient and integrated network embedded in the international context. Data is integrated in the ETN data system that is part of the ETN virtual lab developed by LifeWatch.","License":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/","StandardTitle":"European Tracking Network (ETN) data","doi":null,"vlizDoi":null},{"DasID":5250,"Acronym":null,"EngAbstract":"As part of the Belgian LifeWatch observatory, a permanent acoustic receiver network for fish tracking is established in the Belgian Part of the North Sea and the Western Scheldt. Using acoustic telemetry distribution, movements and habitat use of tagged migratory fish can be tracked. Tags or transmitters are surgically implanted in the belly of individual fish. When swimming in the vicinity of an acoustic receiver (Vemco), the information of the unique ID-code of the transmitter is stored on the receiver together with an exact timing of the event. When signals are simultaneously received by multiple receivers, an exact positioning of the tagged individuals can be derived from the raw data. In total 40 transmitters are implanted and 51 acoustic receivers are installed on buoys and other platforms.","License":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/","StandardTitle":"LifeWatch observatory data: fish acoustic receiver network","doi":null,"vlizDoi":null}],"children":null,"othrel":null,"othrelrev":[{"DasID":1510,"Acronym":"EurOBIS","StandardTitle":"European Ocean Biodiversity Information System","Relation":"Published dataset","RelationY":"Published in","RelID":13,"doi":null,"vlizDoi":null}],"ownerships":[{"OrderNr":1,"Surname":null,"Firstname":null,"Initials":null,"PerPublicFlag":null,"AdrID":null,"Email":null,"InsPublicFlag":1,"Acronym":"MARBIOL","OrigNameLangCode":"en","OrigNameLangID":15,"FullOrigName":"Ghent University; Faculty of Sciences; Biology Department; Marine Biology Section","InsOwnerCNT":4,"PersID":null,"InsID":13,"FullInstitute":"Universiteit Gent; Faculteit Wetenschappen; Vakgroep Biologie; Onderzoeksgroep Mariene Biologie","RoleID":68,"Role":"Data 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