Análisis de la distribución hábitat y riesgo de los tiburones martillo en la zona de Malpelo mediante Modelos Ocultos de Markov

dc.contributor.advisorCastañeda, Liliana Blanco
dc.contributor.authorAcosta Pinzón, Sara Lucia
dc.contributor.cvlacSara Lucia Acosta Pinzón [0001875525]spa
dc.contributor.datamanagerFundación Malpelo y otros ecosistemas marinosspa
dc.coverage.countryColombiaspa
dc.coverage.regionIsla de Malpelospa
dc.date.accessioned2023-08-08T17:28:33Z
dc.date.available2023-08-08T17:28:33Z
dc.date.issued2023-07-31
dc.descriptionilustraciones, diagramas, mapasspa
dc.description.abstractEl tiburón martillo común (TMC) Sphyrna lewini habita en aguas costeras e islas de regiones templadas y cálidas. Su comportamiento y sus preferencias de hábitat los sitúan directamente en zonas de alto riesgo. Esto ha llevado a que el tiburón martillo haya sido incluido recientemente en la lista de especies amenazadas a nivel mundial por la Unión Internacional para la Conservación de la Naturaleza. El éxito de la aplicación de estrategias de gestión requiere información adecuada sobre los movimientos y el uso del hábitat. Este estudio tiene como objetivo determinar los patrones de movimiento así como la distribución horizontal de los tiburones martillo en la zona de Malpelo Colombia, utilizando telemetría satelital. Se utilizó un Modelo de Markov Oculto (HMM por su siglas en inglés) para descubrir los comportamientos de los estados latentes, determinar si las características del hábitat influyen en los estados de su comportamiento y evaluar los comportamientos, residencia y sus movimientos horizontales. Cuantificar los patrones de distribución de los tiburones y las asociaciones de hábitat específicas de la especie en respuesta a los factores geográficos y ambientales es fundamental para evaluar el riesgo de exposición frente a la pesca, la degradación del hábitat y los efectos del cambio climático. Se hizo uso de los datos proporcionados por la Fundación Malpelo y otros ecosistemas marinos gracias al convenio Nº 307 de 2021, convenio de dirección de trabajo de grado entre la Universidad Nacional de Colombia, Facultad de Ciencias (Sede Bogotá) y la Fundación Malpelo y Otros Ecosistemas Marinos. (Texto tomado de la fuente)spa
dc.description.abstractHammerhead sharks Sphyrna lewini inhabit coastal waters and islands in temperate and warm regions. Their specialized behavior and habitat preferences place them squarely in high-risk areas. This has led to the hammerhead shark’s recent listing as a globally threatened species. Successful implementation of management strategies requires adequate information on movements and habitat use. This study aims to determine the movement patterns as well as the horizontal distribution of hammerhead sharks in the Malpelo area of Colombia, using satellite telemetry. A Hidden Markov Model (HMM) will be used to uncover latent state behaviors, determine if habitat characteristics influence behavioral states, and evaluate behaviors, residency, and horizontal movements. Quantifying shark distribution patterns and species-specific habitat associations in response to geographic and environmental factors is critical for assessing the risk of exposure to fisheries, habitat degradation, and the effects of climate change. The data provided by Fundación Malpelo y otros ecosistemas marinos was used thanks to the agreement Nº 307 of 2021, agreement of direction of degree work between Universidad Nacional de Colombia, Facultad de Ciencias (Sede Bogotá) and Fundación Malpelo y Otros Ecosistemas Marinos.eng
dc.description.degreelevelMaestríaspa
dc.description.sponsorshipFundación Malpelo y otros ecosistemas marinosspa
dc.format.extent64 páginasspa
dc.format.mimetypeapplication/pdfspa
dc.identifier.instnameUniversidad Nacional de Colombiaspa
dc.identifier.reponameRepositorio Institucional Universidad Nacional de Colombiaspa
dc.identifier.repourlhttps://repositorio.unal.edu.co/spa
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/84492
dc.language.isospaspa
dc.publisherUniversidad Nacional de Colombiaspa
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotáspa
dc.publisher.facultyFacultad de Cienciasspa
dc.publisher.placeBogotá, Colombiaspa
dc.publisher.programBogotá - Ciencias - Maestría en Ciencias - Estadísticaspa
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.licenseAtribución-NoComercial-CompartirIgual 4.0 Internacionalspa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/spa
dc.subject.ddc590 - Animales::597 - Vertebrados de sangre fríaspa
dc.subject.ddc570 - Biología::577 - Ecologíaspa
dc.subject.lccIsla Malpelo (Colombia)spa
dc.subject.lccMalpelo Island (Colombia)eng
dc.subject.lembTIBURONESspa
dc.subject.lembSharkseng
dc.subject.lembHABITAT ACUATICOspa
dc.subject.lembAquatic habitatseng
dc.subject.proposalModelos de Markov Ocultospa
dc.subject.proposaltelemetría satelitalspa
dc.subject.proposalpatrones de movimientospa
dc.subject.proposalmovimientos horizontalesspa
dc.subject.proposalHidden Markov Modelseng
dc.subject.proposalsatellite telemetryeng
dc.subject.proposalmovement patternseng
dc.subject.proposalhorizontal movementseng
dc.subject.proposalSphyrna lewini
dc.subject.proposalMalpelospa
dc.titleAnálisis de la distribución hábitat y riesgo de los tiburones martillo en la zona de Malpelo mediante Modelos Ocultos de Markovspa
dc.title.translatedAnalysis of habitat distribution and risk of hammerhead sharks in the Malpelo area using Hidden Markov Modelseng
dc.typeTrabajo de grado - Maestríaspa
dc.type.coarhttp://purl.org/coar/resource_type/c_bdccspa
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aaspa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/masterThesisspa
dc.type.redcolhttp://purl.org/redcol/resource_type/TMspa
dc.type.versioninfo:eu-repo/semantics/acceptedVersionspa
dcterms.audience.professionaldevelopmentInvestigadoresspa
dcterms.audience.professionaldevelopmentMaestrosspa
dcterms.audience.professionaldevelopmentPúblico generalspa
dcterms.audience.professionaldevelopmentResponsables políticosspa
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2spa
oaire.awardtitleAnálisis de la distribución hábitat y riesgo de los tiburones martillo en la zona de Malpelo mediante Modelos Ocultos de Markovspa

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