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Artículo

Evaluation of fish biodiversity in the Beagle Channel (Tierra del Fuego-Argentina) using environmental DNA (eDNA) metabarcoding

Nardi, Cristina FernandaIcon ; Llompart, Facundo ManuelIcon ; Chalde, TomásIcon ; Bruno, Daniel OsvaldoIcon ; Ceballos, Santiago GuillermoIcon
Fecha de publicación: 08/2024
Editorial: Academic Press Ltd - Elsevier Science Ltd
Revista: Estuarine, Coastal and Shelf Science
ISSN: 0272-7714
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

The fish biodiversity of the Beagle Channel is insufficiently assessed, poorly managed, and threatened by exotic species. Novel, rapid, and cost-effective DNA-based approaches are valuable for understanding fish communities and biomonitoring in remote areas. Here, we evaluate the potential of environmental DNA (eDNA) metabarcoding for assessing fish species composition by analyzing water samples from three sites along the Beagle Channel in the extreme south of Argentina. Fish biodiversity was estimated using high-throughput sequencing of 12S rRNA amplicons. First, a local reference database was generated, including 12S sequences of 48 spp. In total, 31 environmental sequences were recovered, belonging to 11 families, 15 genera, and 22 species. Six eDNA sequences did not match any species in our database. Multivariate analyses indicated that the relative species composition differed significantly among the sampled sites. However, the most abundant species detected were consistent with historical data on fish species recorded in the sites sampled. In conclusion, eDNA metabarcoding is sensitive, reliable, and suitable for studies on the presence and distribution of fish species in the area. We further strengthen the potential of eDNA metabarcoding as a biomonitoring tool.
Palabras clave: eDNA , Beagle Channel , Fish , Water sampling , Biomonitoring
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/238221
URL: https://www.sciencedirect.com/science/article/abs/pii/S0272771424002075
DOI: https://doi.org/10.1016/j.ecss.2024.108819
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Articulos de CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS
Citación
Nardi, Cristina Fernanda; Llompart, Facundo Manuel; Chalde, Tomás; Bruno, Daniel Osvaldo; Ceballos, Santiago Guillermo; Evaluation of fish biodiversity in the Beagle Channel (Tierra del Fuego-Argentina) using environmental DNA (eDNA) metabarcoding; Academic Press Ltd - Elsevier Science Ltd; Estuarine, Coastal and Shelf Science; 303; 108819; 8-2024; 1-8
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