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Artículo

Fine-scale variation in the proximity of baited remote underwater video stations (BRUVS) to rocky reefs reveals changes in the structure of temperate fish assemblages

Merlo, Pablo JavierIcon ; Venerus, Leonardo ArielIcon ; Irigoyen, Alejo JoaquinIcon
Fecha de publicación: 02/2023
Editorial: Elsevier
Revista: Marine Environmental Research
ISSN: 1879-0291
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ecología

Resumen

We investigated changes in the structure of coastal fish assemblages in Northern Patagonia, Southwestern Atlantic, by using baited remote underwater video stations (BRUVS) deployed at increasing distances from rocky reefs: 0–5 m, 15–20 m and 50–60 m. We estimated species richness and abundance (total and by preferred habitat type) and searched for diagnostic species in each distance range. We recorded 14 taxa across 11 families in 19 areas surveyed. Species richness and abundance were higher on reef ledges and decreased with distance from them, at a finer spatial scale than previously reported. Acanthistius patachonicus and Sebastes oculatus were indicative of reef ledges; they were less abundant at 15–20 m and disappeared at 50–60 m. Callorinchus callorynchus and Odontesthes spp. occurred only at distances >15–20 m from the reefs, while Galeorhinus galeus was distributed homogeneously throughout the surveyed area. Our findings have practical implications for monitoring ecotone demersal habitats with BRUVS.
Palabras clave: NORTHERN PATAGONIA , TEMPERATE ROCKY-REEFS , FISH ASSEMBLAGE , ECOTONE HABITAT , VIDEO MONITORING , COASTAL WATERS , SPATIAL SCALE
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/232123
DOI: https://doi.org/10.1016/j.marenvres.2023.105902
Colecciones
Articulos(CESIMAR)
Articulos de CENTRO PARA EL ESTUDIO DE SISTEMAS MARINOS
Citación
Merlo, Pablo Javier; Venerus, Leonardo Ariel; Irigoyen, Alejo Joaquin; Fine-scale variation in the proximity of baited remote underwater video stations (BRUVS) to rocky reefs reveals changes in the structure of temperate fish assemblages; Elsevier; Marine Environmental Research; 185; 2-2023; 1-10
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