Trophic ecology of range-expanding round sardinella and resident sympatric species in the NW Mediterranean

Trophic ecology of range-expanding round sardinella and resident sympatric species in the NW Mediterranean

16 pages, 7 figures, 3 tables, supplementary material https://doi.org/10.3354/meps12962

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Main Authors: Albo Puigserver, Marta, Borme, Diego, Coll, Marta, Tirelli, Valentina, Palomera, Isabel, Navarro, Joan
Other Authors: General Fisheries Commission for the Mediterranean
Format: artículo biblioteca
Language:English
Published: Inter Research 2019-06
Subjects:Gelatinous zooplankton, Sardine, Anchovy, Small pelagic fish, Trophic segregation, Stable isotopes, Stomach contents, Trophic pathways,
Online Access:http://hdl.handle.net/10261/186397
http://dx.doi.org/10.13039/501100011033
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spelling dig-icm-es-10261-1863972021-12-17T11:40:43Z Trophic ecology of range-expanding round sardinella and resident sympatric species in the NW Mediterranean Albo Puigserver, Marta Borme, Diego Coll, Marta Tirelli, Valentina Palomera, Isabel Navarro, Joan General Fisheries Commission for the Mediterranean Agencia Estatal de Investigación (España) Ministerio de Ciencia, Innovación y Universidades (España) Gelatinous zooplankton Sardine Anchovy Small pelagic fish Trophic segregation Stable isotopes Stomach contents Trophic pathways 16 pages, 7 figures, 3 tables, supplementary material https://doi.org/10.3354/meps12962 The recent northward expansion of the round sardinella Sardinella aurita in the Mediterranean Sea has been documented as a consequence of rising sea temperature. At the same time, declines in sardine and anchovy biomass have been observed in the NW Mediterranean Sea, necessitating an assessment of whether the expansion of round sardinella may affect sardine and anchovy populations. Here, we combined stomach content and isotopic analyses to describe the trophic habits of round sardinella in the NW Mediterranean Sea and its trophic relationships with 2 sympatric small pelagic fish, European anchovy Engraulis encrasicolus and European pilchard Sardina pilchardus. Results revealed changes in the diet of round sardinella during the year. In summer, the most important prey were copepods (Acartia spp.) and cladocerans (Penilia avirostris). During winter, the diet was composed mainly of copepods and tunicates (mainly appendicularians), but microplankton was also numerically important in adult diets. In contrast to previous studies, during spring, round sardinella principally fed on salps (Thaliacea). To our knowledge, this is the first time that salps have been identified as an important prey for round sardinella. When compared to coexisting small pelagic fish, we found that round sardinella adults had a different trophic niche than anchovy and sardine. In contrast, round sardinella juveniles partially overlapped the trophic niche with the juveniles of the other 2 species. Therefore, the range expansion of round sardinella probably would not affect sardine and anchovy populations. Only in a situation of food limitation could juveniles of round sardinella compete with and affect both sympatric species. Our results provide new insights into the ecological role of this range-expanding species in the NW Mediterranean Sea, and highlight the importance of gelatinous zooplankton as prey We also thank the General Fisheries Commission for the Mediterranean Sea (GFCM) for their financial support to present this work at the International Symposium on drivers of dynamics o small pelagic fish resources. This study was funded by ECO-TRANS (CTM2011-26333) and PELWEB (ES-PN-2017-CTM2017-88939-R) projects. M.A.P. was funded by an FPI grant and a Short-Stay FPI grant (BES-2012-054267; Spanish Government). J.N. was funded by a Ramon y Cajal contract (RYC-2015-17809) of the Spanish Government Peer reviewed 2019-07-19T07:39:59Z 2019-07-19T07:39:59Z 2019-06 artículo http://purl.org/coar/resource_type/c_6501 Marine Ecology Progress Series 620: 139-154 (2019) 0171-8630 http://hdl.handle.net/10261/186397 10.3354/meps12962 1616-1599 http://dx.doi.org/10.13039/501100011033 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/CTM2017-88939-R CTM2017-88939-R/AEI/10.13039/501100011033 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/RYC-2015-17809 https://doi.org/10.3354/meps12962 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 Gelatinous zooplankton
Sardine
Anchovy
Small pelagic fish
Trophic segregation
Stable isotopes
Stomach contents
Trophic pathways
Gelatinous zooplankton
Sardine
Anchovy
Small pelagic fish
Trophic segregation
Stable isotopes
Stomach contents
Trophic pathways
spellingShingle Gelatinous zooplankton
Sardine
Anchovy
Small pelagic fish
Trophic segregation
Stable isotopes
Stomach contents
Trophic pathways
Gelatinous zooplankton
Sardine
Anchovy
Small pelagic fish
Trophic segregation
Stable isotopes
Stomach contents
Trophic pathways
Albo Puigserver, Marta
Borme, Diego
Coll, Marta
Tirelli, Valentina
Palomera, Isabel
Navarro, Joan
Trophic ecology of range-expanding round sardinella and resident sympatric species in the NW Mediterranean
description 16 pages, 7 figures, 3 tables, supplementary material https://doi.org/10.3354/meps12962
author2 General Fisheries Commission for the Mediterranean
author_facet General Fisheries Commission for the Mediterranean
Albo Puigserver, Marta
Borme, Diego
Coll, Marta
Tirelli, Valentina
Palomera, Isabel
Navarro, Joan
format artículo
topic_facet Gelatinous zooplankton
Sardine
Anchovy
Small pelagic fish
Trophic segregation
Stable isotopes
Stomach contents
Trophic pathways
author Albo Puigserver, Marta
Borme, Diego
Coll, Marta
Tirelli, Valentina
Palomera, Isabel
Navarro, Joan
author_sort Albo Puigserver, Marta
title Trophic ecology of range-expanding round sardinella and resident sympatric species in the NW Mediterranean
title_short Trophic ecology of range-expanding round sardinella and resident sympatric species in the NW Mediterranean
title_full Trophic ecology of range-expanding round sardinella and resident sympatric species in the NW Mediterranean
title_fullStr Trophic ecology of range-expanding round sardinella and resident sympatric species in the NW Mediterranean
title_full_unstemmed Trophic ecology of range-expanding round sardinella and resident sympatric species in the NW Mediterranean
title_sort trophic ecology of range-expanding round sardinella and resident sympatric species in the nw mediterranean
publisher Inter Research
publishDate 2019-06
url http://hdl.handle.net/10261/186397
http://dx.doi.org/10.13039/501100011033
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