Population structure of the Pacific angel shark (Squatina californica) along the northwestern coast of Mexico based on the mitochondrial DNA control region

Population structure of the Pacific angel shark (Squatina californica) along the northwestern coast of Mexico based on the mitochondrial DNA control region

Population structure has direct consequences on species evolution, local adaptation, and the capacity of a metapopulation to adapt to climate change. In this study we assess the genetic structure and demographic history of the Pacific angel shark, Squatina californica, along the northwestern coast o...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Ramírez-Amaro, Sergio, Ramírez-Macías, Dení, Vázquez-Juárez, Ricardo, Flores-Ramírez, Sergio, Galván-Magaña, Felipe, Gutiérrez-Rivera, Jesús N
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2017
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2692
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id repositorioinstitucional-20.500.12930-7513
record_format dspace
spelling repositorioinstitucional-20.500.12930-75132023-05-09T14:30:59Z Population structure of the Pacific angel shark (Squatina californica) along the northwestern coast of Mexico based on the mitochondrial DNA control region Estructura poblacional del tiburón ángel del Pacífico (Squatina californica) a lo largo de la costa noroccidental de México con base en la regíon control del ADN mitocondrial Ramírez-Amaro, Sergio Ramírez-Macías, Dení Vázquez-Juárez, Ricardo Flores-Ramírez, Sergio Galván-Magaña, Felipe Gutiérrez-Rivera, Jesús N Population structure has direct consequences on species evolution, local adaptation, and the capacity of a metapopulation to adapt to climate change. In this study we assess the genetic structure and demographic history of the Pacific angel shark, Squatina californica, along the northwestern coast of Mexico using the mitochondrial control region. Results showed high levels of genetic diversity and reveal genetic differentiation between the samples from the Pacific coast of the Baja California Peninsula and those from the Gulf of California. These genetic differences are consistent with ontogenetic differences previously reported for S. californica off the northwestern coast of Mexico. Our findings can be explained by the low dispersal ability and habitat preference of the angel shark and by the complex geomorphology off the northwestern coast of Mexico. Contrasting historical demographic patterns were observed: population expansion in the gulf and population stability, with a declining trend, in the Pacific; however, more studies are required to corroborate demographic patterns in both populations. Our results point to 2 distinct management units of the Pacific angel shark in the study area, and this may have direct implications for the management and conservation of this species in Mexico.  La estructura poblacional tiene consecuencias directas sobre la evolución de las especies, la adaptación local y la capacidad de una metapoblación para adaptarse al cambio climático. En el presente estudio, se analizó la estructura genética y la historia demográfica del tiburón ángel del Pacífico, Squatina californica, a lo largo de la costa noroccidental de México con base en la región control del ADN mitocondrial. Los resultados mostraron elevados niveles de diversidad genética y diferenciación genética entre las muestras del Pacífico frente a la península de Baja California y aquellas del golfo de California. Estas diferencias genéticas son consistentes con las diferencias ontogenéticas reportadas previamente para S. californica en la costa noroccidental de México. Los resultados pueden ser explicados por la baja capacidad de dispersión y la preferencia de hábitat de S. californica y por la compleja geomorfología frente a la costa noroccidental de México. Además, se observaron diferentes patrones demográficos históricos: la población del golfo exhibió una tendencia a la expansión y la población del Pacífico exhibió estabilidad con tendencia a disminuir; sin embargo, es necesario realizar más estudios para corroborar los patrones demográficos detectados en ambas poblaciones. Los resultados sugieren la presencia de 2 diferentes unidades para la gestión pesquera del tiburón ángel del Pacífico en el área de estudio, lo cual tiene implicaciones directas para la conservación y gestión de esta especie en México. 2017-03-31 2021-06-03T03:55:32Z 2021-06-03T03:55:32Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2692 10.7773/cm.v43i1.2692 https://hdl.handle.net/20.500.12930/7513 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2692/1622 Copyright (c) 2017 Ciencias Marinas application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 43 No. 1 (2017); 69-80 Ciencias Marinas; Vol. 43 Núm. 1 (2017); 69-80 2395-9053 0185-3880
institution Repositorio Institucional
collection DSpace
language eng
description Population structure has direct consequences on species evolution, local adaptation, and the capacity of a metapopulation to adapt to climate change. In this study we assess the genetic structure and demographic history of the Pacific angel shark, Squatina californica, along the northwestern coast of Mexico using the mitochondrial control region. Results showed high levels of genetic diversity and reveal genetic differentiation between the samples from the Pacific coast of the Baja California Peninsula and those from the Gulf of California. These genetic differences are consistent with ontogenetic differences previously reported for S. californica off the northwestern coast of Mexico. Our findings can be explained by the low dispersal ability and habitat preference of the angel shark and by the complex geomorphology off the northwestern coast of Mexico. Contrasting historical demographic patterns were observed: population expansion in the gulf and population stability, with a declining trend, in the Pacific; however, more studies are required to corroborate demographic patterns in both populations. Our results point to 2 distinct management units of the Pacific angel shark in the study area, and this may have direct implications for the management and conservation of this species in Mexico. 
format info:eu-repo/semantics/article
author Ramírez-Amaro, Sergio
Ramírez-Macías, Dení
Vázquez-Juárez, Ricardo
Flores-Ramírez, Sergio
Galván-Magaña, Felipe
Gutiérrez-Rivera, Jesús N
spellingShingle Ramírez-Amaro, Sergio
Ramírez-Macías, Dení
Vázquez-Juárez, Ricardo
Flores-Ramírez, Sergio
Galván-Magaña, Felipe
Gutiérrez-Rivera, Jesús N
Population structure of the Pacific angel shark (Squatina californica) along the northwestern coast of Mexico based on the mitochondrial DNA control region
author_facet Ramírez-Amaro, Sergio
Ramírez-Macías, Dení
Vázquez-Juárez, Ricardo
Flores-Ramírez, Sergio
Galván-Magaña, Felipe
Gutiérrez-Rivera, Jesús N
author_sort Ramírez-Amaro, Sergio
title Population structure of the Pacific angel shark (Squatina californica) along the northwestern coast of Mexico based on the mitochondrial DNA control region
title_short Population structure of the Pacific angel shark (Squatina californica) along the northwestern coast of Mexico based on the mitochondrial DNA control region
title_full Population structure of the Pacific angel shark (Squatina californica) along the northwestern coast of Mexico based on the mitochondrial DNA control region
title_fullStr Population structure of the Pacific angel shark (Squatina californica) along the northwestern coast of Mexico based on the mitochondrial DNA control region
title_full_unstemmed Population structure of the Pacific angel shark (Squatina californica) along the northwestern coast of Mexico based on the mitochondrial DNA control region
title_sort population structure of the pacific angel shark (squatina californica) along the northwestern coast of mexico based on the mitochondrial dna control region
publisher Iniversidad Autónoma de Baja California
publishDate 2017
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2692
_version_ 1792610711942201344

Ejemplares similares