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| Página principal > Artículos > Artículos publicados > Assessing juvenile swordfish (Xiphias gladius) diet as an indicator of marine ecosystem changes in the northwestern Mediterranean Sea |
| Fecha: | 2023 |
| Resumen: | To preserve marine biodiversity, we need reliable early warning indicators that inform changes in marine ecosystems. As reliable samplers of mid-trophic level communities, studying the trophodynamics of large pelagic fish can contribute to monitoring these changes. Here, we combined stomach content and stable isotope analyses to reconstruct the diet of juvenile swordfish (Xiphias gladius) in the northwestern Mediterranean Sea, in a time-lapse of almost a decade (2012 and 2020). Overall, our study showed that swordfish fed on a wide range of fish and cephalopod species from both pelagic and demersal habitats. A dietary shift towards increasing consumption of cephalopods and decreasing consumption of Gadiformes had been observed between 2012 and 2020. Stable isotope approaches revealed that gelatinous organisms were also important prey, particularly for smaller-sized swordfish. We underline the importance of combining multiple and complementary approaches to better reconstruct the diet of generalist species. Our findings highlight the generalist and opportunistic diet of Mediterranean swordfish, which makes them good candidates for monitoring changes in the ecosystem. |
| Ayudas: | Ministerio de Ciencia, Innovación y Universidades FPU20/05523 Agencia Estatal de Investigación FJC-2019-040016 Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/BP-00035 European Commission 101059877 Agencia Estatal de Investigación IJC2020-043170-I European Commission 869300 Agencia Estatal de Investigación RYC2020-030078-I |
| Derechos: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
| Lengua: | Anglès |
| Documento: | Article ; recerca ; Versió publicada |
| Materia: | Swordfish ; Cephalopods ; Gelatinous organisms ; Ecosystem change ; Marine ecology ; Large pelagic fish ; Stable isotopes ; Stomach content analysis ; Trophic ecology ; Mediterranean Sea |
| Publicado en: | Marine Environmental Research, Vol. 192 (November 2023) , art. 106190, ISSN 1879-0291 |
| Obra relacionada: | Elena Fernández-Corredor, Luca Francotte, Ilaria Martino, Fernando Á. Fernández-Álvarez, Salvador García-Barcelona, David Macías, Marta Coll, Francisco Ramírez, Joan Navarro, Joan Giménez. Corrigendum to "Assessing juvenile swordfish (Xiphias gladius) diet as an indicator of marine ecosystem changes in the northwestern Mediterranean Sea" [Mar. Environ. Res. 192 (2023) 106190]. Marine Environmental Research, Vol. 206 (2025), art. 107052 https://doi.org/10.1016/j.marenvres.2025.107052 |
13 p, 1.9 MB |