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Energy content of anchovy and sardine using surrogate calorimetry methods

2021-12Journal article Restricted access
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dc.contributor.authorCampanini, Claudia
dc.contributor.authorAlbo Puigserver, Marta
dc.contributor.authorGérez, Sara
dc.contributor.authorLloret-Lloret, Elena
dc.contributor.authorGiménez, Joan
dc.contributor.authorPennino, Maria Grazia
dc.contributor.authorBellido, José María
dc.contributor.authorColmenero, Ana I.
dc.contributor.authorColl, Marta
dc.date.accessioned2021-11-30T20:22:31Z
dc.date.available2021-11-30T20:22:31Z
dc.date.issued2021-12
dc.description.abstractEuropean anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) are crucial species for the marine ecosystem of the Northwestern Mediterranean Sea. They account for a high percentage of fish landings and they represent an important economic income for the fishery sector. Concerns over their stock status are rising in recent years as biomass, growth, reproductive capacity, and body condition of both species are declining, with latitudinal variations. Therefore, there is an urgent need for a body condition monitoring scheme. Energy storage variability has important implications for both fish recruitment and population structure. Direct condition indices, such as energy density (ED) with bomb calorimetry, are highly reliable for measuring the energy content, but time-consuming. Alternatively, fatmeter analysis and relative condition index (Kn) have been proposed as effective indirect methods. The aim of this study is to test the application of fatmeter as a surrogate of bomb calorimetry to infer the energy content of sardine and anchovy. To validate its use, fatmeter values were compared with both ED and Kn values. Individuals of both species were sampled monthly for a year in order to assess seasonal variations in energy content. Our results highlight that fatmeter measurements are strongly correlated with calorimetry ED for sardine, while a weaker but significant correlation was found for anchovy. The observed differences between the two species are related to their breeding strategies. Based on this study, Kn cannot be considered a good proxy of the energy density of sardine, in particular during the resting period. By contrast, fatmeter analysis appears to be a faster and suitable method to evaluate the energy content of both species routinely. In addition, we provide a linear model to infer ED from fatmeter values for both small pelagic fish. Eventually, these findings could be used to implement body condition monitoring protocols and boost continuous large-scale monitoring.pt_PT
dc.description.sponsorshipES-PN-2017-CTM2017-88939-R, FJC2019-040016-I, FPU1704395, CEX2019-000928-S
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.marenvres.2021.105510pt_PT
dc.identifier.eissn1879-0291
dc.identifier.issn0141-1136
dc.identifier.urihttp://hdl.handle.net/10400.1/17360
dc.language.isoengpt_PT
dc.peerreviewednopt_PT
dc.publisherElsevierpt_PT
dc.relation.hasversionhttps://digital.csic.es/bitstream/10261/230502/1/Campanini_et_al_2021.pdf
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectEuropean anchovypt_PT
dc.subjectSardinept_PT
dc.subjectFatmeterpt_PT
dc.subjectCalorimetrypt_PT
dc.subjectBody conditionpt_PT
dc.titleEnergy content of anchovy and sardine using surrogate calorimetry methodspt_PT
dc.title.alternativeTeor energético de anchova e sardinha usando métodos de calimemetria de barriga de aluguelpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage105510pt_PT
oaire.citation.titleMarine Environmental Researchpt_PT
oaire.citation.volume172pt_PT
person.familyNameAlbo Puigserver
person.givenNameMarta
person.identifier.ciencia-idA41D-2A96-2A52
person.identifier.orcid0000-0002-0477-5984
person.identifier.ridF-5693-2016
person.identifier.scopus-author-id55607790600
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication06acde7e-3f6f-42ce-90ad-eca5e245b252
relation.isAuthorOfPublication.latestForDiscovery06acde7e-3f6f-42ce-90ad-eca5e245b252

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