{"key":"0fc29943-3bb4-4176-a6b9-b7d010c1d4b2","installationKey":"f9df6cff-21d4-4d4b-8da4-eda454f5a086","publishingOrganizationKey":"bbb2d81e-95fa-4876-84a4-f9665ea7e8f4","doi":"10.15468/c8e68q","version":"1.5","external":false,"numConstituents":0,"type":"SAMPLING_EVENT","subtype":"OBSERVATION","shortName":"ANSE_MMVS_2014-onwards","title":"ANSE Marine megafauna visual surveys in Southeastern Spanish Mediterranean","description":"<p>Original provider and dataset credits: Asociación de Naturalistas del Sureste (ANSE).Abstract: Marine megafauna visual surveys from a dedicated research vessel in the southeastern Spanish Mediterranean coast (Western Mediterranean Sea) from 2014 onwards (except for 2024 and 2025 when there were no campaigns). The dataset includes 13,887 occurrence records of seabirds, migratory birds, marine turtles, epipelagic fish, and jellyfish. The records were made following linear transects using Distance Sampling methodology (Buckland et al. 1993), with constant vessel speed at 5-6 knots and two observers covering a 180° observation arc (one portside, one starboard). Primary observation method was naked eye, supplemented with 8x40 binoculars for species identification. For each sighting, the following data were recorded: species, distance, angle, total number of individuals, age class (for birds: adult, immature, juvenile), behavior (feeding, traveling, resting, foraging, kleptoparasiting, kleptoparasited, scavenging), and flight heading (when applicable).The dataset integrates multiple conservation and monitoring projects conducted by ANSE in the region, including &#34;Acuicultura y delfines&#34; (2014), &#34;Delfín mular y calderón gris en LIC marinos de Murcia y Andalucía&#34; (2014-2016), &#34;Guardians of The Sea&#34; (2016), &#34;Étude comportementale des capacités chimio-sensorielles des cétacés&#34; (2017), &#34;Caracterización de la Basura Marina en el LIC Valles Submarinos del Escarpe de Mazarrón&#34; (2017-2018), CDMAPAMP (2019), INDELPESUR (2021), GlobAlGoVe (2020-2022), and &#34;Conservación de calderón común en el sureste&#34; (2023). This dataset contributes to the knowledge of marine megafauna distribution and behavior in the Western Mediterranean and supports marine conservation efforts in the region.</p>","language":"eng","citation":{"text":"Murcia Abellán J L, Morata A (2026). ANSE Marine megafauna visual surveys in Southeastern Spanish Mediterranean. Version 1.3. ANSE. Sampling event dataset. https://ipt.vliz.be/eurobis/resource?r=anse_mmvs_2014-onwards&amp;v=1.3 https://doi.org/10.15468/c8e68q accessed via GBIF.org on 2026-10-27.","citationProvidedBySource":true},"contactsCitation":[],"lockedForAutoUpdate":false,"createdBy":"bbb2d81e-95fa-4876-84a4-f9665ea7e8f4","modifiedBy":"crawler.gbif.org","created":"2026-05-29T11:02:56.779+00:00","modified":"2026-08-13T16:44:23.965+00:00","contacts":[{"key":7108654,"type":"ORIGINATOR","primary":true,"userId":["https://orcid.org/0000-0001-9173-092X"],"firstName":"José Luis","lastName":"Murcia Abellán","position":["Technician"],"email":["jlmurcia@asociacionanse.org"],"phone":["0034655488015"],"homepage":["http://www.asociacionanse.org"],"organization":"ANSE","address":["Plaza Pintor José María Párraga nº 11 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S.T., Anderson, D.R., Burnham, K.P., and Laake, J.L. (1993). Distance Sampling: Estimating Abundance of Biological Populations. Chapman and Hall, London. 446pp","citationProvidedBySource":false},{"text":"Thomas, L., Buckland, S.T., Rexstad, E.A., Laake, J. L., Strindberg, S., Hedley, S. L., Bishop, J.R.B., Marques, T. A., and Burnham, K. P. (2010). Distance software: design and analysis of distance sampling surveys for estimating population size. 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Lat/min Lon  36.34897995 -4.446509838; max Lat/max Lon 38.17905817 -0.42601335","boundingBox":{"minLatitude":36.34898,"maxLatitude":38.179058,"minLongitude":-4.44651,"maxLongitude":-0.426013,"globalCoverage":false}}],"temporalCoverages":[{"@type":"range","start":"2014-07-01T00:00:00.000+00:00","end":"2023-08-29T00:00:00.000+00:00"}],"keywordCollections":[{"thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml","keywords":["Southeastern Spanish Mediterranean","ANSE","Distance Sampling","Caretta caretta","visual surveys","Murcia coastal waters","Marine megafauna","seabirds","Western Mediterranean","Puffinus mauretanicus","INDELPESUR","Mola mola","Alicante coastal waters","Alboran sea","GlobAlGoVe","gulf of Vera","CDMAPAMP"]},{"thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml","keywords":["Observation"]}],"project":{"title":"Acuicultura y delfines: colaboración en la creación de bases científicas para una gestión en Red Natura 2000","contacts":[{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0001-9173-092X"],"firstName":"José Luis","lastName":"Murcia Abellán","position":[],"email":[],"phone":[],"homepage":[],"address":[]}],"funding":"Pleamar Program from Fundación Biodiversidad of the spanish Ministry for Ecological Transition and The Demographic Challenge","awards":[],"studyAreaDescription":"Southern spanish coast","relatedProjects":[{"title":"Delfín mular y calderón gris en LIC marinos de Murcia y Andalucía","contacts":[{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0001-9173-092X"],"firstName":"José Luis","lastName":"Murcia Abellán","position":[],"email":[],"phone":[],"homepage":[],"address":[]}]},{"title":"Guardians of The Sea","contacts":[{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0001-9173-092X"],"firstName":"José Luis","lastName":"Murcia Abellán","position":[],"email":[],"phone":[],"homepage":[],"address":[]}]},{"title":"Étude comportementale des capacités chimio-sensorielles des cétacés","contacts":[{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0001-9173-092X"],"firstName":"José Luis","lastName":"Murcia Abellán","position":[],"email":[],"phone":[],"homepage":[],"address":[]}]},{"title":"Caracterización de la Basura Marina en el LIC Valles Submarinos del Escarpe de Mazarrón y su entorno","contacts":[{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0001-9173-092X"],"firstName":"José Luis","lastName":"Murcia Abellán","position":[],"email":[],"phone":[],"homepage":[],"address":[]}]},{"title":"Compatibilidad del delfín mular con actividades pesqueras en áreas marinas protegidas","identifier":"CDMAPAMP","contacts":[{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0001-9173-092X"],"firstName":"José Luis","lastName":"Murcia Abellán","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0009-0004-2693-1353"],"firstName":"Aixa","lastName":"Morata","position":[],"email":[],"phone":[],"homepage":[],"address":[]}]},{"title":"Evaluación de interacciones de delfín mular y pesquerías del sur y sureste en áreas marinas protegidas para una gestión integrada","identifier":"INDELPESUR","contacts":[{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0001-9173-092X"],"firstName":"José Luis","lastName":"Murcia Abellán","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0009-0004-2693-1353"],"firstName":"Aixa","lastName":"Morata","position":[],"email":[],"phone":[],"homepage":[],"address":[]}]},{"title":"Evaluación del estatus poblacional del calderón común (Globicephala melas) en el golfo de Vera y el mar de Alborán Oriental","identifier":"GlobAlGoVe","contacts":[{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0001-9173-092X"],"firstName":"José Luis","lastName":"Murcia Abellán","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0009-0004-2693-1353"],"firstName":"Aixa","lastName":"Morata","position":[],"email":[],"phone":[],"homepage":[],"address":[]}]},{"title":"Conservación de calderón común en el sureste","contacts":[{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0000-0001-9173-092X"],"firstName":"José Luis","lastName":"Murcia Abellán","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":["https://orcid.org/0009-0004-2693-1353"],"firstName":"Aixa","lastName":"Morata","position":[],"email":[],"phone":[],"homepage":[],"address":[]}]}],"abstract":"Based on this study, ANSE has been able to build upon the results obtained in previous projects developed since 2000 in this area. The overall objective of these projects has been to advance our understanding of the structure of the different bottlenose dolphin groups in the study area, as well as the actual impact that feeding near aquaculture farms may have on their diet. The project has consisted of quantifying and characterizing how different bottlenose dolphin groups use aquaculture farms in the towns of San Pedro del Pinatar, Águilas, and Almería.\n\nDeveloped in 2014\n\nhttps://www.programapleamar.es/proyectos/acuicultura-y-delfines-colaboracion-en-la-creacion-de-bases-cientificas-para-una-gestion"},"samplingDescription":{"studyExtent":"Opportunistic data of seabirds, other migrant birds in the area, sea turtles, pelagic fishes, and jellyfishes, collected using Distance Sampling methodology during several years, from several projects aiming to study cetaceans populations in spanish Mediterranean coast.","sampling":"Distance Sampling methodology: line-transect surveys with two observers with 180 degrees arc of view using naked eye and 8x40 binoculars for species identification","methodSteps":["References:\n\nBuckland, S.T., Anderson, D.R., Burnham, K.P., and Laake, J.L. (1993). Distance Sampling: Estimating Abundance of Biological Populations. Chapman and Hall, London. 446pp\n\nThomas, L., Buckland, S.T., Rexstad, E.A., Laake, J. L., Strindberg, S., Hedley, S. L., Bishop, J.R.B., Marques, T. A., and Burnham, K. P. (2010). Distance software: design and analysis of distance sampling surveys for estimating population size. Journal of Applied Ecology 47: 5-14. DOI: https://doi.org/10.1111/j.1365-2664.2009.01737.x"]},"countryCoverage":[],"collections":[],"dataDescriptions":[],"dataLanguage":"eng","purpose":"<p>To study the distribution of marine megafauna (seabirds, migrant birds, sea turtles, pelagic fish, and jellyfishes) in the Western Mediterranean and southeastern spanish coast of multiple years. Linear transects surveys using Distance Sampling methodology were conducted onboard ANSE's monitoring vessel (a wooden sailing ship 15 m lenght), as part of several projects covering part of Alboran sea, gulf of Vera and Alicante's coast.</p>","acknowledgements":"<p>We would like to thank the following entities for their support in collecting the data present in this dataset: Fundación Biodiversidad (under the spanish Ministry for the Ecological Transition and the Demographic Challenge); Ecoembes; the CaixaBank Environment call; Dr. Bertrand Bouchard and the University of Montpellier. Likewise, we thank all the internship students from Miguel Hernández University and ANSE volunteers who enthusiastically participated in data collection during long days of navigation, whether in good weather or rough seas.</p>","additionalInfo":"The original dataset also includes ancillary data on the survey effort (vessel speed and bearing, linear transect start and end points, distance of specimens, and environmental conditions during surveys (Beaufort sea state, wind speed and direction, cloud cover in the sky, and general visibility conditions).","pubDate":"2026-08-13T00:00:00.000+00:00","maintenanceUpdateFrequency":"ANNUALLY","maintenanceDescription":"The dataset will be updated annually if new data becomes available. ANSE will continue to seek funding for new projects, including new surveys in the region to study the distribution and abundance of marine megafauna.","license":"http://creativecommons.org/licenses/by-nc/4.0/legalcode","dwca":{"coreType":"http://rs.tdwg.org/dwc/terms/Event","extensions":["http://rs.tdwg.org/dwc/terms/Occurrence"],"modified":"2026-08-13T16:44:23.884+00:00"},"approximateCounts":{"occurrenceCount":13887}}