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dc.contributor.authorEguiraun Martínez, Harkaitz
dc.contributor.authorCasquero Oyarzabal, Oscar ORCID
dc.contributor.authorSorensen, Asgeir J.
dc.contributor.authorMartínez Galarza, María Iciar ORCID
dc.date.accessioned2018-11-09T13:54:56Z
dc.date.available2018-11-09T13:54:56Z
dc.date.issued2018-05-08
dc.identifier.citationFrontiers In Physiology 9 : (2018) // Article ID 493es_ES
dc.identifier.issn1664-042X
dc.identifier.urihttp://hdl.handle.net/10810/29595
dc.description.abstractThe present study aims at identifying the lowest number of fish (European seabass) that could be used for monitoring and/or experimental purposes in small-scale fish facilities by quantifying the effect that the number of individuals has on the Shannon entropy (SE) of the trajectory followed by the shoal's centroid. Two different experiments were performed: (i) one starting with 50 fish and decreasing to 25, 13, and 1 fish, and (ii) a second experiment starting with one fish, adding one new fish per day during 5 days, ending up with five fish in the tank. The fish were recorded for 1h daily, during which time a stochastic event (a hit in the tank) was introduced. The SE values were calculated from the images corresponding to three arbitrary basal (shoaling) periods of 3.5 min prior to the event, and to the 3.5 min period immediately after the event (schooling response). Taking both experiments together, the coefficient of variation (CV) of the SE among measurements was largest for one fish systems (CV 37.12 and 17.94% for the daily average basal and response SE, respectively) and decreased concomitantly with the number of fish (CV 8.6-10% for the basal SE of 2 to 5 fish systems and 5.86, 2.69, and 2.31% for the basal SE of 13, 25, and 50 fish, respectively). The SE of the systems kept a power relationship with the number of fish (basal: R-2 = 0.93 and response: R-2 = 0.92). Thus, 5-13 individuals should be the lowest number for a compromise between acceptable variability (< 10%) in the data and reduction in the number of fish. We believe this to be the first scientific work made to estimate the minimum number of individuals to be used in subsequent experimental (including behavioral) studies using shoaling fish species that reaches a compromise between the reduction in number demanded by animal welfare guidelines and a low variability in the fish system's response.es_ES
dc.description.sponsorshipThe work was financed through grant nos. CTM2012-40203-C02-01 (project BMW) and RTC-2014-2837-2 (project Selatun), both from the Spanish Ministry of Economy and Competitiveness (http://www.mineco.gob.es) and by grant no. KK-2016/00057 (project Maromega) Elkartek, from the Basque Government-Eusko Jaurlaritza.es_ES
dc.language.isoenges_ES
dc.publisherFrontiers Media SAes_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/(CTM2012-40203-C02-01)es_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/(RTC-2014-2837-2)
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subjectfish monitoringes_ES
dc.subjectbiological warning systemses_ES
dc.subjectfish welfarees_ES
dc.subjectthe 3Rses_ES
dc.subjectShannon entropyes_ES
dc.subjectnon-linear signal processinges_ES
dc.subjectnon-invasive monitoringes_ES
dc.subjectintelligent aquaculturees_ES
dc.subjectbass dicentrarchus-labraxes_ES
dc.subjectzebrafish danio-rerioes_ES
dc.subjectfractal dimensiones_ES
dc.subjectsodium-hypochloritees_ES
dc.subjectselfish herdes_ES
dc.subjectbehaviores_ES
dc.subjectaquaculturees_ES
dc.subjectresponseses_ES
dc.subjectmovementses_ES
dc.subjecttelemetryes_ES
dc.titleReducing the Number of Individuals to Monitor Shoaling Fish Systems - Application of the Shannon Entropy to Construct a Biological Warning System Modeles_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holderAttribution 4.0 International (CC BY 4.0) You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially.es_ES
dc.rights.holderAtribución 3.0 España*
dc.relation.publisherversionhttps://www.frontiersin.org/articles/10.3389/fphys.2018.00493/fulles_ES
dc.identifier.doi10.3389/fphys.2018.00493
dc.departamentoesExpresión gráfica y proyectos de ingenieríaes_ES
dc.departamentoesIngeniería de sistemas y automáticaes_ES
dc.departamentoesZoología y biología celular animales_ES
dc.departamentoeuAdierazpen grafikoa eta ingeniaritzako proiektuakes_ES
dc.departamentoeuSistemen ingeniaritza eta automatikaes_ES
dc.departamentoeuZoologia eta animalia zelulen biologiaes_ES


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Attribution 4.0 International (CC BY 4.0) 
You are free to: Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material for any purpose, even commercially.
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0) You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially.