Evaluating fish foraging behaviour on non-indigenous Asparagopsis taxiformis using a remote video foraging system.

Autor: Chebaane S; MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal; Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Portugal; Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia. Electronic address: sahar.chebaane@mare-centre.pt., Engelen AH; CCMar, Universidade do Algarve, Campus de Gambelas, 8100-139, Faro, Portugal., Pais MP; Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Portugal; MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Portugal., Silva R; MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal., Gizzi F; MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal., Triay-Portella R; MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal; Grupo en Biodiversidad y Conservación, IU-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain., Florido M; Laboratorio de Biología Marina, Departamento de Zoología, Facultad de Biología de la Universidad de Sevilla, Av. de la Reina Mercedes, 41012, Sevilla, Spain., Monteiro JG; MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal; Faculty of Life Sciences, University of Madeira, 9000, Funchal, Portugal.
Jazyk: angličtina
Zdroj: Marine environmental research [Mar Environ Res] 2024 Sep 24; Vol. 202, pp. 106766. Date of Electronic Publication: 2024 Sep 24.
DOI: 10.1016/j.marenvres.2024.106766
Abstrakt: The proliferation of pest and invasive marine macroalgae threatens coastal ecosystems, with biotic interactions, including direct effects such as grazing and indirect effects such as the trophic cascades, where one species indirectly affects another through its interactions with a third species, play a critical role in determining the resistance of local communities to these invasions. This study examines the foraging behaviour and preference of native fish communities toward native (Halopteris scoparia, Sargassum vulgare) and non-indigenous (Asparagopsis taxiformis) macroalgae using the Remote Video Foraging System (RVFS). Fifty-four weedpops were deployed across three locations to present these macroalgae, while associated epifaunal assemblages were also collected. Video analysis revealed that four common fish species displayed preference towards native macroalgae, possibly due to by the presence of zoobenthos rather than herbivory. This observation suggests that these fish species identified the macroalgae as a habitat that harboured their preferred food items. In contrast, A. taxiformis was consistently avoided, suggesting limited integration into the local food web. Site-specific variations in fish-macroalgae interactions and epifaunal diversity highlighted the complexity of these dynamics. This study contributes to understanding of the ecological implications of invasive macroalgae and supports the use of RVFS as a tool for assessing local biotic resistance against non-indigenous species in coastal ecosystems globally.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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