Trophic interactions of the jellyfish Pelagia noctiluca in the NW Mediterranean: evidence from stable isotope signatures and fatty acid composition

Trophic interactions of the jellyfish Pelagia noctiluca in the NW Mediterranean: evidence from stable isotope signatures and fatty acid composition

16 pages, 5 figures, 3 tables, correction https://www.int-res.com/abstracts/meps/v591/c_p101-116/

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Main Authors: Tilves, Uxue, Fuentes, Veronica, Milisenda, Giacomo, Parrish, Christopher C., Vizzini, Salvatrice, Sabatés, Ana
Other Authors: Ministerio de Economía y Competitividad (España)
Format: artículo biblioteca
Language:English
Published: Inter Research 2018-03
Subjects:Medusae, Ephyrae, Predation, Competition, Fish larvae, Pelagic fish,
Online Access:http://hdl.handle.net/10261/167048
http://dx.doi.org/10.13039/501100003329
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spelling dig-icm-es-10261-1670482019-03-06T14:04:27Z Trophic interactions of the jellyfish Pelagia noctiluca in the NW Mediterranean: evidence from stable isotope signatures and fatty acid composition Tilves, Uxue Fuentes, Veronica Milisenda, Giacomo Parrish, Christopher C. Vizzini, Salvatrice Sabatés, Ana Ministerio de Economía y Competitividad (España) Medusae Ephyrae Predation Competition Fish larvae Pelagic fish 16 pages, 5 figures, 3 tables, correction https://www.int-res.com/abstracts/meps/v591/c_p101-116/ Jellyfish have the potential to dominate the pelagic biomass of marine ecosystems, thereby negatively affecting pelagic fish. We investigated the trophic interactions of Pelagia noctiluca (medusae and ephyrae), one of the most abundant and conspicuous jellyfish on the Catalan coast in the NW Mediterranean. A combination of stable isotope and fatty acid analyses was used to obtain a broad picture of the feeding habits of this jellyfish in order to understand its potential interactions with the most abundant fish species (larvae and adults) during the summer in the area. The results suggested that in addition to predation on fish larvae by P. noctiluca, this jellyfish had similar feeding requirements to those of most fish larvae, suggesting potential competition. The trophic niche of medusae and ephyrae overlapped highly with that of larval Engraulis encrasicolus, Trachurus mediterraneus and Sardinella aurita and to a lesser extent with that of Serranus hepatus, Sparus pagrus and Mullus barbatus. No overlap was observed with Arnoglossus sp. larvae and adult E. encrasicolus, Sardina pilchardus, T. mediterraneus and S. aurita. Our findings demonstrated that P. noctiluca could be an important predator and competitor for fish larvae, but not for adult fish. Moreover, salps were found to be a significant food source for P. noctiluca. This study provides information that should be considered in near-future ecosystem-based fishery management in regions where P. noctiluca thrives This work was supported by the Spanish Ministry of Economy and Competitiveness (FISHJELLY project: CTM2010-18874), and U.T. was supported by a predoctoral fellowship of the FPI program (Spanish Ministry of Economy and Competitiveness) Peer reviewed 2018-06-27T07:18:42Z 2018-06-27T07:18:42Z 2018-03 artículo http://purl.org/coar/resource_type/c_6501 Marine Ecology Progress Series 591: 101-116 (2018) 0171-8630 http://hdl.handle.net/10261/167048 10.3354/meps12332 1616-1599 http://dx.doi.org/10.13039/501100003329 en Publisher's version https://doi.org/10.3354/meps12332 Sí open Inter Research
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Medusae
Ephyrae
Predation
Competition
Fish larvae
Pelagic fish
Medusae
Ephyrae
Predation
Competition
Fish larvae
Pelagic fish
spellingShingle Medusae
Ephyrae
Predation
Competition
Fish larvae
Pelagic fish
Medusae
Ephyrae
Predation
Competition
Fish larvae
Pelagic fish
Tilves, Uxue
Fuentes, Veronica
Milisenda, Giacomo
Parrish, Christopher C.
Vizzini, Salvatrice
Sabatés, Ana
Trophic interactions of the jellyfish Pelagia noctiluca in the NW Mediterranean: evidence from stable isotope signatures and fatty acid composition
description 16 pages, 5 figures, 3 tables, correction https://www.int-res.com/abstracts/meps/v591/c_p101-116/
author2 Ministerio de Economía y Competitividad (España)
author_facet Ministerio de Economía y Competitividad (España)
Tilves, Uxue
Fuentes, Veronica
Milisenda, Giacomo
Parrish, Christopher C.
Vizzini, Salvatrice
Sabatés, Ana
format artículo
topic_facet Medusae
Ephyrae
Predation
Competition
Fish larvae
Pelagic fish
author Tilves, Uxue
Fuentes, Veronica
Milisenda, Giacomo
Parrish, Christopher C.
Vizzini, Salvatrice
Sabatés, Ana
author_sort Tilves, Uxue
title Trophic interactions of the jellyfish Pelagia noctiluca in the NW Mediterranean: evidence from stable isotope signatures and fatty acid composition
title_short Trophic interactions of the jellyfish Pelagia noctiluca in the NW Mediterranean: evidence from stable isotope signatures and fatty acid composition
title_full Trophic interactions of the jellyfish Pelagia noctiluca in the NW Mediterranean: evidence from stable isotope signatures and fatty acid composition
title_fullStr Trophic interactions of the jellyfish Pelagia noctiluca in the NW Mediterranean: evidence from stable isotope signatures and fatty acid composition
title_full_unstemmed Trophic interactions of the jellyfish Pelagia noctiluca in the NW Mediterranean: evidence from stable isotope signatures and fatty acid composition
title_sort trophic interactions of the jellyfish pelagia noctiluca in the nw mediterranean: evidence from stable isotope signatures and fatty acid composition
publisher Inter Research
publishDate 2018-03
url http://hdl.handle.net/10261/167048
http://dx.doi.org/10.13039/501100003329
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