{"datasetrec":{"DasID":8692,"Acronym":"RAJIBAL-COFIB","StandardTitle":"Tagging and tracking the butterfly ray (<i>Gymnura altavela</i>) with acoustic telemetry in the Balearic Sea","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":"<p>The butterfly ray (<i>Gymnura altavela</i>) is an elasmobranch species (Order: Myliobatiformes, Family: Gymnuridae) classified as endangered on the IUCN Red List and protected at the state level in the LESPRE (MITECO, Spain). This species was considered rare in the Balearic Islands and is currently included in the Balearic Islands’ Catalogue of Threatened Species. The main threats it faces include commercial and accidental fishing, as well as habitat degradation. Since 2021, the RAJIBAL Project has been carried out along the coast of Mallorca, within the Balearic Sea, with the aim of assessing the status of <i>G. altavela </i>populations. Specifically, the project’s goals include studying the species' spatial and temporal movement patterns, as well as its genetic variability. The first captures of<i> G. altavela</i> occurred in July 2024 at two sites of interest, which were identified based on sightings recorded through citizen science: El Toro and Malgrats Islands Marine Reserve, and the Migjorn Marine Reserve. In both areas, the specimens were tagged with acoustic transmitters and floy tag visual tags, biometric and genetic samples were taken, and sex was identified. In the El Toro and Malgrats Islands Marine Reserve, the animals were captured using a containment device during scuba dives and tagged onboard a vessel, while in Migjorn Marine Reserve the capture was done with a hand net during freediving, and the specimens were tagged on land. To date, 16 individuals have been tagged: 3 in El Toro and Malgrats Islands and 13 in Migjorn. Tracking of these specimens is expected to provide information on the species’ distribution in Mallorca, its movement patterns, seasonality, and possible aggregation areas. This project is crucial as it uses advanced technologies to generate valuable data that contributes to the study, stewardship, and conservation of <i>G. altavela, </i>aiding in its long-term preservation in a context of climate change and increasing environmental challenges.</p>","EngDescr":null,"OrigAbstract":null,"OrigDescr":null,"Comments":null,"ReleaseDate":null,"ReleaseDate0":null,"OrigDescrLang":null,"EmbargoDate":null,"OrigDescrLangNL":null,"OrigLangCode":null,"OrigLangCodeExtended":null,"OrigLangID":null,"DescrCompFlag":null,"DescrTransFlag":null,"Citation":"Félix, G; Pacheco, P; Solís, C; (2025): RAJIBAL_COFIB - Tagging and tracking the butterfly ray (Gymnura altavela) with acoustic telemetry in the Balearic Sea.","AccessConstraints":null,"UDate":"2026-03-11","CDate":"2024-11-06","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2026-03-11 12:06:38.774398","timezone_type":1,"timezone":"+01:00"},"CheckedFlag":0,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"StatusID":1,"DasType":"Data","DasTypeID":1,"DasOrigin":"Research: field experiment","Progress":"In Progress","AccessConstraint":"Attribution (CC BY)","AccConstrEN":"Attribution (CC BY)","AccConstrDisplay":"<a rel=\"license\" href=\"https://creativecommons.org/licenses/by/4.0/\" target=\"_blank\"><img alt=\"Creative Commons License\" style=\"border:0px;height:15px;width:80px;vertical-align:middle;\" src=\"https://www.marinespecies.org/aphia/images/cc/by.png\" /></a> This dataset is licensed under a <a rel=\"license\" href=\"https://creativecommons.org/licenses/by/4.0/\" target=\"_blank\">Creative Commons Attribution 4.0 International License</a>.","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 data","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":"c_54b338c3","Description":null,"OrigThesTerm":"Acoustic data","DutchTerm":null,"URI":"http://aims.fao.org/aos/agrovoc/c_54b338c3","DasKeywordDescr":null},{"ThesaurusTerm":"Acoustic detection","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":null,"Description":null,"OrigThesTerm":"Acoustic detection","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Acoustic devices","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":null,"Description":null,"OrigThesTerm":"Acoustic devices","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Acoustic tags","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":null,"Description":null,"OrigThesTerm":"Acoustic tags","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Acoustic Tags","ThesTypID":30,"ThesType":"ETN Context","Code":null,"Description":"Tags that transmit acoustic signals","OrigThesTerm":"Acoustic Tags","DutchTerm":"Acoustic Tags","URI":null,"DasKeywordDescr":null},{"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":"Acoustic tracking","ThesTypID":4,"ThesType":"CAB Thesaurus","Code":"5296","Description":null,"OrigThesTerm":"Acoustic tracking","DutchTerm":null,"URI":"https://id.cabi.org/cabt/5296","DasKeywordDescr":null},{"ThesaurusTerm":"Animal Project","ThesTypID":30,"ThesType":"ETN Context","Code":null,"Description":"Project metadata related to animals and tags","OrigThesTerm":"Animal Project","DutchTerm":"Animal Project","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Conventional tag","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"Conventional tag","DutchTerm":"","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Conventional Tags","ThesTypID":30,"ThesType":"ETN Context","Code":null,"Description":"Passive, nonelectronic tags that are meant to mark individual fish","OrigThesTerm":"Conventional Tags","DutchTerm":"Conventional Tags","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Endangered species","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":"c_2557","Description":null,"OrigThesTerm":"Endangered species","DutchTerm":null,"URI":"http://aims.fao.org/aos/agrovoc/c_2557","DasKeywordDescr":null},{"ThesaurusTerm":"Endangered species","ThesTypID":4,"ThesType":"CAB Thesaurus","Code":"43089","Description":null,"OrigThesTerm":"Endangered species","DutchTerm":"Bedreigde soorten","URI":"https://id.cabi.org/cabt/43089","DasKeywordDescr":null},{"ThesaurusTerm":"Fish tracking","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":"c_5731a296","Description":null,"OrigThesTerm":"Fish tracking","DutchTerm":null,"URI":"http://aims.fao.org/aos/agrovoc/c_5731a296","DasKeywordDescr":null},{"ThesaurusTerm":"Fish traps","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":null,"Description":null,"OrigThesTerm":"Fish traps","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"IUCN assessment status","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"IUCN assessment status","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Marine protected area","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"Marine protected area","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Marine protected areas (MPAs)","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"Marine protected areas (MPAs)","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. 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