Small pelagic fish fitness relates to local environmental conditions and trophic variables
13 pages, 5 figures, 2 tables, supplementary material https://doi.org/10.1016/j.pocean.2022.102745
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2022-03
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Subjects: | Anchovy fisheries, Energy dynamics, Life history, Sardine fisheries, Seasonal changes, Spatial ecology, |
Online Access: | http://hdl.handle.net/10261/263458 http://dx.doi.org/10.13039/501100011033 |
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dig-icm-es-10261-2634582022-04-06T07:48:24Z Small pelagic fish fitness relates to local environmental conditions and trophic variables Lloret Lloret, Elena Albo Puigserver, Marta Giménez, Joan Navarro, Joan Pennino, Maria Grazia Steenbeek, Jeroen Bellido, José M. Coll, Marta Ministerio de Educación (España) Ministerio de Ciencia, Innovación y Universidades (España) Agencia Estatal de Investigación (España) Anchovy fisheries Energy dynamics Life history Sardine fisheries Seasonal changes Spatial ecology 13 pages, 5 figures, 2 tables, supplementary material https://doi.org/10.1016/j.pocean.2022.102745 Small pelagic fish (SPF) are key organisms for the functioning of pelagic marine ecosystems. In recent decades, these species have undergone significant changes in biomass, growth and body condition in the Mediterranean Sea. Seasonal and spatial information about changes in biological and ecological traits of SPF and their relationship with environmental variables is still missing. Here, we have investigated along a latitudinal gradient in the Northwestern Mediterranean Sea the seasonal patterns of fish fitness (in terms of body condition, fat content and reproduction activity) of two important Mediterranean SPF, European anchovy (Engraulis encrasicolus) and European sardine (Sardina pilchardus). We used non-parametric multivariate analyses and Generalized Additive Models (GAMs) to investigate which environmental and trophic variables could explain observed variations during 2018–2019. Mean fat content values, relative condition index (Kn) and gonadosomatic index (GSI) were calculated monthly. We also measured individual’s stable isotope composition in muscle. Chlorophyll-a, sea surface temperature and salinity were used as environmental descriptors. The results revealed spatial and temporal variations for both species in terms of body condition, fat content and reproduction indices, as well as of stable isotopic values. GAMs showed that the variability in fitness for both species was mostly explained by environmental variables, in addition to the spatial and seasonal factors. Trophic variables contributed to explain the variability of the indices, mostly in the case of anchovy. This study provides insights into the spatial and seasonal interplay of the fitness of two important commercial species along a latitudinal gradient, and contributes to understand the fluctuations of SPF population and recent declining trends to inform proactive fisheries management at local and regional scale E.L.-L. was supported by a FPU grant (FPU1704395, Spanish Ministry of Education associated). J.G. and J.N. were supported by the Spanish National Program Juan de la Cierva-Formación (FJC2019-040016-I) and Ramon y Cajal (RYC-2015-17809), respectively. This study is a contribution to the project PELWEB (CTM2017-88939-R, Ministry of Science and Innovation, Spain) and PELCAT (CAT 152CAT00013, TAIS ARP059/19/00005). [...] This work acknowledges the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S) to the Institute of Marine Science (ICM-CSIC) Peer reviewed 2022-03-09T11:07:24Z 2022-03-09T11:07:24Z 2022-03 artículo http://purl.org/coar/resource_type/c_6501 Progress in Oceanography 202: 102745 (2022) 0079-6611 CEX2019-000928-S http://hdl.handle.net/10261/263458 10.1016/j.pocean.2022.102745 http://dx.doi.org/10.13039/501100011033 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO//RYC-2015-17809/ES/RYC-2015-17809/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2017-88939-R/ES/GANADORES, PERDEDORES Y CAMBIOS DE LA RED TROFICA PELAGICA DEL MEDITERRANEO OCCIDENTAL: DE CONSECUENCIAS ECOLOGICAS A PROYECCIONES FUTURAS/ Preprint https://doi.org/10.1016/j.pocean.2022.102745 Sí open Elsevier |
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Anchovy fisheries Energy dynamics Life history Sardine fisheries Seasonal changes Spatial ecology Anchovy fisheries Energy dynamics Life history Sardine fisheries Seasonal changes Spatial ecology |
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Anchovy fisheries Energy dynamics Life history Sardine fisheries Seasonal changes Spatial ecology Anchovy fisheries Energy dynamics Life history Sardine fisheries Seasonal changes Spatial ecology Lloret Lloret, Elena Albo Puigserver, Marta Giménez, Joan Navarro, Joan Pennino, Maria Grazia Steenbeek, Jeroen Bellido, José M. Coll, Marta Small pelagic fish fitness relates to local environmental conditions and trophic variables |
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13 pages, 5 figures, 2 tables, supplementary material https://doi.org/10.1016/j.pocean.2022.102745 |
author2 |
Ministerio de Educación (España) |
author_facet |
Ministerio de Educación (España) Lloret Lloret, Elena Albo Puigserver, Marta Giménez, Joan Navarro, Joan Pennino, Maria Grazia Steenbeek, Jeroen Bellido, José M. Coll, Marta |
format |
artículo |
topic_facet |
Anchovy fisheries Energy dynamics Life history Sardine fisheries Seasonal changes Spatial ecology |
author |
Lloret Lloret, Elena Albo Puigserver, Marta Giménez, Joan Navarro, Joan Pennino, Maria Grazia Steenbeek, Jeroen Bellido, José M. Coll, Marta |
author_sort |
Lloret Lloret, Elena |
title |
Small pelagic fish fitness relates to local environmental conditions and trophic variables |
title_short |
Small pelagic fish fitness relates to local environmental conditions and trophic variables |
title_full |
Small pelagic fish fitness relates to local environmental conditions and trophic variables |
title_fullStr |
Small pelagic fish fitness relates to local environmental conditions and trophic variables |
title_full_unstemmed |
Small pelagic fish fitness relates to local environmental conditions and trophic variables |
title_sort |
small pelagic fish fitness relates to local environmental conditions and trophic variables |
publisher |
Elsevier |
publishDate |
2022-03 |
url |
http://hdl.handle.net/10261/263458 http://dx.doi.org/10.13039/501100011033 |
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