Publication:
Weak population structure detected in the commercially important deep-sea queen snapper (𝘌𝘵𝘦𝘭𝘪𝘴 𝘰𝘤𝘶𝘭𝘢𝘵𝘶𝘴) in Puerto Rico

dc.contributor.advisor Schizas, Nikolaos V.
dc.contributor.author González García, María del Pilar
dc.contributor.college College of Arts and Sciences - Sciences
dc.contributor.committee García Sais, Jorge R.
dc.contributor.committee Harms-Tuohy, Chelsea
dc.contributor.committee Weil Machado, Ernesto
dc.contributor.department Department of Marine Sciences
dc.contributor.representative Rodriguez, Grisell
dc.date.accessioned 2023-12-05T19:13:23Z
dc.date.available 2023-12-05T19:13:23Z
dc.date.issued 2023-10-08
dc.description.abstract The queen snapper, Etelis oculatus (Valenciennes, 1828), is part of the deep-water snapper complex; an important commercial species in the US Caribbean fishery. However, little is known about the biology and ecology of this species. This study sought to detect the presence of a fine-scale population structure and genetic diversity, as assessed through SNPs derived from the Restriction site Associated DNA Sequencing technique. Results estimated a weak population structure and low genetic diversity in our samples. However, principal component analysis and a model-based clustering method did illustrate a fine-scale subpopulation structure among sampling sites from this study. These results are comparable to the genetic and dispersal patterns observed in shallow-water snapper species in Puerto Rico. This study addressed questions of connectivity that are crucial to understanding the ecological role and biological life historyof the queen snapper which is useful for effective management and conservation of this culturally and commercially important fishery.
dc.description.abstract El cartucho, Etelis oculatus (Valenciennes, 1828), forma parte del complejo de pargos de aguas profundas y es una de las especies más importante en la pesca comercial en el Caribe de Estados Unidos. Se sabe poco sobre la biología y ecología de esta especie. En este estudio se evaluó la presencia de la estructura poblacional a escala fina y se cuantificó la diversidad genética mediante SNPs derivados a través de la técnica de Secuenciación de ADN Asociada a Sitios de Restricción (RADSeq). Se estimó que hay una estructura poblacional débil y una baja diversidad genética en nuestras muestras. Sin embargo, el análisis de componentes principales y un método de agrupamiento basado en modelos Bayesianos detectaron una estructura de subpoblaciones de escala fina entre los sitios de muestreo en este estudio. Nuestros resultados han revelado patrones genéticos y de dispersión comparables a los observados en otras especies de pargos de aguas someras en Puerto Rico. Es crucial mejorar nuestra comprensión del aspecto ecológico y biológico del cartucho para gestionar y conservar de manera eficaz esta especie, ya que la presión pesquera en Puerto Rico se ha extendido a especies que habitan en aguas profundas.
dc.description.graduationSemester Fall
dc.description.graduationYear 2023
dc.description.sponsorship National Oceanic and Atmospheric Administration’s (NOAA) Coral Reef Conservation Program to the CFMC [Grant: NA17NMF4410270]
dc.identifier.uri https://hdl.handle.net/20.500.11801/3582
dc.language.iso en
dc.rights Attribution-NonCommercial-ShareAlike 4.0 International *
dc.rights.holder (c) 2023 María del Pilar González García
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/ *
dc.subject Queen snapper - Puerto Rico
dc.subject Restriction site-associated DNA sequencing (RADSeq)
dc.subject Population Structure
dc.subject Genetic Diversity
dc.subject.lcsh Metagenomics
dc.subject.lcsh Lutjanidae - Ecology - Puerto Rico
dc.subject.lcsh Lutjanidae - Population viability analysis
dc.subject.lcsh Fish populations - Puerto Rico
dc.title Weak population structure detected in the commercially important deep-sea queen snapper (𝘌𝘵𝘦𝘭𝘪𝘴 𝘰𝘤𝘶𝘭𝘢𝘵𝘶𝘴) in Puerto Rico
dc.type Thesis
dspace.entity.type Publication
thesis.degree.discipline Marine Sciences
thesis.degree.level M.S.
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