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dc.contributor.author | Sobradillo, B. | es_ES |
dc.contributor.author | Boyra, G. | es_ES |
dc.contributor.author | Pérez Arjona, Isabel | es_ES |
dc.contributor.author | Martínez, U. | es_ES |
dc.contributor.author | Espinosa Roselló, Víctor | es_ES |
dc.date.accessioned | 2021-11-05T14:09:21Z | |
dc.date.available | 2021-11-05T14:09:21Z | |
dc.date.issued | 2021-07 | es_ES |
dc.identifier.issn | 1054-3139 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/176365 | |
dc.description.abstract | [EN] This study measures the dorsal aspect target strength (TS; dB re 1¿m2) and TS¿length (standard length, SL; cm) relationships for European anchovy, attained both ex situ and in situ in two different seasons across 7 years in the Bay of Biscay. The measurements were made at three frequently used acoustic frequencies (38, 120, and 200¿kHz). A backscattering model for physostome fish was utilized to help interpret the results. The obtained experimental mean TS for anchovies with an SL of 3.5¿19.5¿cm was ¿44.6 (±2.3), ¿46.9 (±3), and ¿48.4 (±2.7) dB at 38, 120, and 200¿kHz, respectively, yielding b20 values of ¿66.4, ¿68.7, and ¿70.4¿dB, respectively. The results were consistent across seasons and between in situ and ex situ conditions, presenting TS¿length relationships with statistically significant slopes (p-values <0.05) for all frequencies. This research represents part of a series of efforts planned to obtain a comprehensive TS vs. length and depth relationship to update the acoustic assessment methodology of European anchovy in the Bay of Biscay. | es_ES |
dc.description.sponsorship | This study was funded by AZTI-Tecnalia and supported by the research projects JAULA for the ex situ measurements and JUVENA for the in situ ones. The project JAULA was funded by the Department of Agriculture, Fisheries and Food of the Basque Country Government; we thank Unai Cotano, the leader of the project, for giving us access to the cage and for providing biological sampling information. We would like to thank the crew from the Itsas Lagunak for providing us with the anchovy specimens, the Aquaculture School from Mutriku for keeping the specimens during the acclimatization period and the technician and diver Gaizka Bidegain from AZTI for the maintenance and underwater inspection of the specimens used throughout the ex situ measurements. Yolanda Lacalle is thanked for the illustration in Figure 2. The project JUVENA was co-funded by the Direccio¿ n de Innovacio¿ n y Desarrollo Tecnolo¿ gico, Viceconsejer¿¿a de Pol¿¿tica e Industria Alimentaria, Dpto. Agricultura, Pesca y Alimentacio¿ n of the Basque Government and the Secretar¿¿a General del Mar, Ministerio de Agricultura, Alimentacio¿ n y Medio Ambiente of the Spanish Government. Thanks also to Andre¿s Uriarte (Azti) for improving this work with his valuable comments and to Mathieu Doray and Laurent Berger (Ifremer) for their helpful suggestions regarding the analysis and the interpretation of the results. Finally, thanks to the anonymous contribution of the reviewers for helping improve the quality and readability of this work. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Oxford University Press | es_ES |
dc.relation.ispartof | ICES Journal of Marine Science | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Engraulis encrasicolus | es_ES |
dc.subject | Ex situ | es_ES |
dc.subject | In situ | es_ES |
dc.subject | Method of fundamental solutions | es_ES |
dc.subject | Target strength | es_ES |
dc.subject.classification | FISICA APLICADA | es_ES |
dc.title | Ex situ and in situ target strength measurements of European anchovy in the Bay of Biscay | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1093/icesjms/fsaa242 | es_ES |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada | es_ES |
dc.description.bibliographicCitation | Sobradillo, B.; Boyra, G.; Pérez Arjona, I.; Martínez, U.; Espinosa Roselló, V. (2021). Ex situ and in situ target strength measurements of European anchovy in the Bay of Biscay. ICES Journal of Marine Science. 78(3):782-796. https://doi.org/10.1093/icesjms/fsaa242 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1093/icesjms/fsaa242 | es_ES |
dc.description.upvformatpinicio | 782 | es_ES |
dc.description.upvformatpfin | 796 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 78 | es_ES |
dc.description.issue | 3 | es_ES |
dc.relation.pasarela | S\423500 | es_ES |
dc.contributor.funder | Gobierno Vasco/Eusko Jaurlaritza | es_ES |
dc.contributor.funder | Ministerio de Agricultura, Alimentación y Medio Ambiente | es_ES |
dc.subject.ods | 14.- Conservar y utilizar de forma sostenible los océanos, mares y recursos marinos para lograr el desarrollo sostenible | es_ES |