{"datasetrec":{"DasID":6333,"Acronym":"2013_Foyle","StandardTitle":"Freshwater and coastal migration patterns in the silver-stage eel Anguilla anguilla","OrigTitle":null,"OrigTitleLangID":null,"OrigTitleLangCode":null,"OrigTitleLang":null,"OrigTitleLangNL":null,"VersionName":null,"ContactEmail":null,"VersionDate":null,"VersionDay":null,"VersionMonth":null,"VersionYear":null,"SizeReference":null,"EngAbstract":"The unimpeded downstream movement patterns and migration success of small female and male Anguilla anguilla through a catchment in north-west Europe were studied using an acoustic hydrophone array along the River Finn and into the Foyle Estuary in Ireland.","EngDescr":"The unimpeded downstream movement patterns and migration success of small female and male Anguilla anguilla through a catchment in north-west Europe were studied using an acoustic hydrophone array along the River Finn and into the Foyle Estuary in Ireland. Twenty silver-stage A. anguilla were trapped 152 km upstream from a coastal marine sea-lough outlet and internally tagged with acoustic transmitters of which 19 initiated downstream migration. Migration speed was highly influenced by river flow within the freshwater compartment. Anguilla anguilla activity patterns were correlated with environmental influences; light, tidal direction and lunar phase all influenced the initiation of migration of tagged individuals. Migration speed varied significantly between upstream and lower river compartments. Individuals migrated at a slower speed in transitional water and sea-lough compartments compared with the freshwater compartment. While 88.5% survival was recorded during migration through the upper 121 km of the river and estuary, only 26% of A. anguilla which initiated downstream migration were detected at the outermost end of the acoustic array. Telemetry equipment functioned efficiently, including in the sea-lough, so this suggests high levels of mortality during sea-lough migration, or less likely, long-term sea-lough residence by silver A. anguilla emigrants. This has important implications for eel management plans.","OrigAbstract":null,"OrigDescr":null,"Comments":null,"ReleaseDate":null,"ReleaseDate0":null,"OrigDescrLang":null,"EmbargoDate":"2017-07-01","OrigDescrLangNL":null,"OrigLangCode":null,"OrigLangCodeExtended":null,"OrigLangID":null,"DescrCompFlag":0,"DescrTransFlag":0,"Citation":"Barry, J., Newton, M., Dodd, J. A., Lucas, M. C., Boylan, P., & Adams, C. E. (2016). Freshwater and coastal migration patterns in the silver‐stage eel Anguilla anguilla.","AccessConstraints":null,"UDate":"2023-05-22","CDate":"2019-10-07","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2026-05-14 01:44:00.153333","timezone_type":1,"timezone":"+02:00"},"CheckedFlag":0,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":1,"FreshFlag":0,"BrackishFlag":1,"TerrestrialFlag":0,"StatusID":1,"DasType":"Data","DasTypeID":1,"DasOrigin":"Research: field survey","Progress":"Completed","AccessConstraint":"Attribution (CC BY)","AccConstrEN":"Attribution (CC BY)","AccConstrDisplay":"\"Creative This dataset is licensed under a Creative Commons Attribution 4.0 International License.","License":"https://creativecommons.org/licenses/by/4.0/","AccConstrDescription":"This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.","Lineage":null,"AccConID":21},"dois":null,"spcols":[{"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 ‘pings’) which propagate into the water, and are detected by acoustic receivers","OrigThesTerm":"Acoustic Telemetry","DutchTerm":"Akoestische Telemetrie","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Tracking","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":"c_c4d65583","Description":null,"OrigThesTerm":"Tracking","DutchTerm":"Tracking; het volgen","URI":"http://aims.fao.org/aos/agrovoc/c_c4d65583","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}],"children":null,"othrel":null,"othrelrev":null,"ownerships":[{"OrderNr":1,"Surname":"Barry","Firstname":"James","Initials":"J.","PerPublicFlag":1,"AdrID":162992,"Email":"James.Barry@fisheriesireland.ie","InsPublicFlag":1,"Acronym":"IFI","OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":"Iascach Intíre Éireann","InsOwnerCNT":2,"PersID":38424,"InsID":14451,"FullInstitute":"Inland Fisheries Ireland","RoleID":24,"Role":"Contact","OrigName":"Iascach Intíre Éireann","StandardName":"Inland Fisheries Ireland","FullAcronym":"IFI","ORC":null,"ROR":null},{"OrderNr":2,"Surname":"Barry","Firstname":"James","Initials":"J.","PerPublicFlag":1,"AdrID":162992,"Email":"James.Barry@fisheriesireland.ie","InsPublicFlag":1,"Acronym":"IFI","OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":"Iascach Intíre Éireann","InsOwnerCNT":2,"PersID":38424,"InsID":14451,"FullInstitute":"Inland Fisheries Ireland","RoleID":61,"Role":"Data creator","OrigName":"Iascach Intíre Éireann","StandardName":"Inland Fisheries Ireland","FullAcronym":"IFI","ORC":null,"ROR":null}],"taxterms":[{"DasTaxtTypID":1,"DasTaxtType":"Taxonomic coverage","TaxtID":35982,"TaxTerm":"Anguilla anguilla","AphiaID":126281,"DutchTerm":"Paling"}],"frameworks":null,"otherterms":null,"temporal":[{"DasDateID":5076,"StartYear":2013,"EndYear":2014,"StartDay":1,"EndDay":1,"StartDate":"2013-07-01","EndDate":"2014-03-01","DasDate":null,"Resolution":"Quasi continuous (< 1 min.)","ResolutionNL":"Quasi continu (< 1 min.)","Notes":null,"StartMonth0":7,"StartMonth":"July","StartMonthNL":"Juli","EndMonth0":3,"EndMonth":"March","EndMonthNL":"Maart","Progress":"Completed","ProgressNL":"Afgelopen"}],"geographical":[{"GeoTerm":null,"DasGeoID":10503,"DasGeoTerm":null,"DasID":6333,"GeotID":null,"X":null,"Y":null,"MaxX":null,"MaxY":null,"StationName":"Ireland","Precision":null,"CoordSystID":null,"GeoDatumID":null,"OrigCoordMinX":54.947386999999999,"OrigCoordMinY":-7.3864340000000004,"OrigCoordMaxX":null,"OrigCoordMaxY":null,"OrderNr":null,"Projection":null,"GeoDatum":null,"GeoObjectID":null,"OrigGeoTerm":null,"DutchTerm":null}],"meastypes":null,"dasthemes":[{"DasThemeID":28,"DasTheme":"Biology > Fish","DasTheme0":"Fish","DutchTerm":"Vis"},{"DasThemeID":35,"DasTheme":"Fisheries","DasTheme0":"Fisheries","DutchTerm":"Visserij"}],"projects":null,"refs":null,"urls":[{"URL":"https://rshiny.lifewatch.be/etn-data/","externalID":null,"URLTypeCode":null,"URLType":"Online dataset","URLTypID":19,"downloadURL":null,"FileName":null}],"pictures":null,"urlmaps":null,"spatreps":null,"fileformats":null,"resmessage":"","complete":1}