Depicting the novel Eastern Mediterranean food web: a stable isotopes study following Lessepsian fish invasion

Depicting the novel Eastern Mediterranean food web: a stable isotopes study following Lessepsian fish invasion

16 pages, 3 figures, 8 tables, electronic supplementary material http://dx.doi.org/10.1007/s10530-015-0868-5

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Main Authors: Fanelli, Emanuela, Azzurro, Ernesto, Bariche, Michel, Cartes, Joan Enric, Maynou, Francesc
Format: artículo biblioteca
Language:English
Published: Springer
Subjects:Bioinvasion, Lessepsian migration, Marine fish, Mediterranean Sea, Stable isotopes, Trophic niche,
Online Access:http://hdl.handle.net/10261/121822
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spelling dig-icm-es-10261-1218222019-03-06T12:08:02Z Depicting the novel Eastern Mediterranean food web: a stable isotopes study following Lessepsian fish invasion Fanelli, Emanuela Azzurro, Ernesto Bariche, Michel Cartes, Joan Enric Maynou, Francesc Bioinvasion Lessepsian migration Marine fish Mediterranean Sea Stable isotopes Trophic niche 16 pages, 3 figures, 8 tables, electronic supplementary material http://dx.doi.org/10.1007/s10530-015-0868-5 The introduction of Red Sea species through the Suez Canal has caused dramatic alteration of Eastern Mediterranean marine communities, however changes at the level of trophic interactions remain poorly understood. Capitalizing on this spectacular bioinvasion, we used stable isotope analysis to depict the novel fish food web occurring in the Eastern Mediterranean, off the Lebanese coast. Multivariate analyses were performed on six trophic groups contrasting the δ15N–δ13C ratios of native (MED) versus non-indigenous (Lessepsian-LES) species. Community-wide aspects of trophic structure were explored by means of recently developed quantitative metrics, such as the average distance to centroid and the standard ellipse area. Although the trophic positions of Lessepsian and native species were comparable, native fishes generally showed a greater trophic diversity than Lessepsians, the latter being mainly located in the central region of the available trophic space. We argue that the original trophic niche of native species has widened out due to the shift they have made towards less preferred food items, whilst highly competitive invaders are exploiting more energetic resources. In the absence of historical data, our observations agree with the idea of a rapid change of the Eastern Mediterranean food web, driven by niche displacements through trophic competition This project was partially funded by the European Commission FP7 project VECTORS (ref. Oceans 2010-2-266445) and by the University Research Board (URB) (DDF 111030/188111 and 111030/288132) of the American University of Beirut (Lebanon) Peer reviewed 2015-07 artículo http://purl.org/coar/resource_type/c_6501 Biological Invasions 17(7): 2163-2178 (2015) 1387-3547 http://hdl.handle.net/10261/121822 10.1007/s10530-015-0868-5 1573-1464 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/266445 http://dx.doi.org/10.1007/s10530-015-0868-5 Sí none Springer
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 Bioinvasion
Lessepsian migration
Marine fish
Mediterranean Sea
Stable isotopes
Trophic niche
Bioinvasion
Lessepsian migration
Marine fish
Mediterranean Sea
Stable isotopes
Trophic niche
spellingShingle Bioinvasion
Lessepsian migration
Marine fish
Mediterranean Sea
Stable isotopes
Trophic niche
Bioinvasion
Lessepsian migration
Marine fish
Mediterranean Sea
Stable isotopes
Trophic niche
Fanelli, Emanuela
Azzurro, Ernesto
Bariche, Michel
Cartes, Joan Enric
Maynou, Francesc
Depicting the novel Eastern Mediterranean food web: a stable isotopes study following Lessepsian fish invasion
description 16 pages, 3 figures, 8 tables, electronic supplementary material http://dx.doi.org/10.1007/s10530-015-0868-5
format artículo
topic_facet Bioinvasion
Lessepsian migration
Marine fish
Mediterranean Sea
Stable isotopes
Trophic niche
author Fanelli, Emanuela
Azzurro, Ernesto
Bariche, Michel
Cartes, Joan Enric
Maynou, Francesc
author_facet Fanelli, Emanuela
Azzurro, Ernesto
Bariche, Michel
Cartes, Joan Enric
Maynou, Francesc
author_sort Fanelli, Emanuela
title Depicting the novel Eastern Mediterranean food web: a stable isotopes study following Lessepsian fish invasion
title_short Depicting the novel Eastern Mediterranean food web: a stable isotopes study following Lessepsian fish invasion
title_full Depicting the novel Eastern Mediterranean food web: a stable isotopes study following Lessepsian fish invasion
title_fullStr Depicting the novel Eastern Mediterranean food web: a stable isotopes study following Lessepsian fish invasion
title_full_unstemmed Depicting the novel Eastern Mediterranean food web: a stable isotopes study following Lessepsian fish invasion
title_sort depicting the novel eastern mediterranean food web: a stable isotopes study following lessepsian fish invasion
publisher Springer
url http://hdl.handle.net/10261/121822
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