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The shrunk genetic diversity of coral populations in North-Central Patagonia calls for management and conservation plans for marine resources.
Addamo, Anna Maria; Zaccara, Serena; Häussermann, Vreni; Höfer, Juan; Försterra, Günter; García-Jiménez, Ricardo; Crosa, Giuseppe; Machordom, Annie.
Afiliación
  • Addamo AM; European Commission, Joint Research Centre (JRC), Ispra, Italy. am.addamo@gmail.com.
  • Zaccara S; Museo Nacional de Ciencias Naturales, MNCN (CSIC), Madrid, Spain. am.addamo@gmail.com.
  • Häussermann V; Climate Change Research Centre (CCRC), University of Insubria, Varese, Italy. am.addamo@gmail.com.
  • Höfer J; Climate Change Research Centre (CCRC), University of Insubria, Varese, Italy.
  • Försterra G; Department of Theoretical and Applied Sciences (DiSTA), University of Insubria, Varese, Italy.
  • García-Jiménez R; Departamento de Vinculación con el Medio, Facultad de Economía y Negocios, Universidad San Sebastian, Puerto Montt, Chile.
  • Crosa G; Fundación San Ignacio de Huinay, Hualaihué, Chile.
  • Machordom A; Escuela de Ciencias del Mar, Pontificia Universidad Católica de Valparaíso (PUCV), Valparaiso, Chile.
Sci Rep ; 12(1): 14894, 2022 09 01.
Article en En | MEDLINE | ID: mdl-36050435
ABSTRACT
The Chilean Patagonia is a complex puzzle of numerous fjords, channels, bays, estuaries, and islands. The largest part of it is very remote, hampering the generation of scientific knowledge and effective management planning that could balance conservation of the marine resources with the increasing development of aquaculture activities. The present study focuses on the deep-water emergent cold-water coral Desmophyllum dianthus, dwelling in Chilean Patagonia, with the aim to illustrate its population genetic structure, demography and adaptation of the species along this coast. Microsatellite loci analysis included D. dianthus individuals from twelve sampling localities along bathymetric and oceanographic gradients from the latitude 40°S to 48°S. The results showed a lack of genetic structure with an asymmetric dispersion of individuals, and relevant heterozygosity deficiency in some populations. This study also analyses the natural and human impacts affecting the region (e.g., climate change, increasing salmon farming activities), and stresses the importance of including genetic information in the process of management and conservation of marine resources. In particular, the relevance of using interdisciplinary approaches to fill the gaps in scientific knowledge especially in remote and pristine areas of western Patagonia. Therefore, information on genetic spatial distribution of marine fauna could become pivotal to develop a holistic ecosystem-based approach for marine spatial planning.
Asunto(s)

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Antozoos Límite: Animals / Humans Idioma: En Revista: Sci Rep Año: 2022 Tipo del documento: Article País de afiliación: Italia

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Antozoos Límite: Animals / Humans Idioma: En Revista: Sci Rep Año: 2022 Tipo del documento: Article País de afiliación: Italia