González García, María del Pilar

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Weak population structure detected in the commercially important deep-sea queen snapper (𝘌𝘵𝘦𝘭𝘪𝘴 𝘰𝘤𝘶𝘭𝘢𝘵𝘶𝘴) in Puerto Rico
(2023-10-08) González García, María del Pilar; Schizas, Nikolaos V.; College of Arts and Sciences - Sciences; García Sais, Jorge R.; Harms-Tuohy, Chelsea; Weil Machado, Ernesto; Department of Marine Sciences; Rodriguez, Grisell
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.