Biomass estimation of bluefin tuna in sea cages by the combined use of acoustic and optical techniques

In this paper, an experimental setup to estimate the biomass of caged bluefin tuna (Thunnus thynnus) in the Spanish Mediterranean coast is presented. Aims are to monitor individual tuna during all stages of growth, to control the transfer of fish caught in purse seines to towing cages and to be able...

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Detalles Bibliográficos
Autores: Puig, V., Espinosa, Víctor, Soliveres, Ester, Ortega-García, Aurelio, Belmonte, Antonio, de-la-Gándara, Fernando
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/313798
Acceso en línea:http://hdl.handle.net/10261/313798
Access Level:acceso abierto
Palabra clave:Centro Oceanográfico de Murcia
Biomass
Acuicultura
biometrics
Aquaculture
bluefin tuna
acoustics
underwater
optical
target strength
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repository_id_str
spelling Biomass estimation of bluefin tuna in sea cages by the combined use of acoustic and optical techniquesPuig, V.Espinosa, VíctorSoliveres, EsterOrtega-García, AurelioBelmonte, Antoniode-la-Gándara, FernandoCentro Oceanográfico de MurciaBiomassAcuiculturabiometricsAquaculturebluefin tunaacousticsunderwateropticaltarget strengthIn this paper, an experimental setup to estimate the biomass of caged bluefin tuna (Thunnus thynnus) in the Spanish Mediterranean coast is presented. Aims are to monitor individual tuna during all stages of growth, to control the transfer of fish caught in purse seines to towing cages and to be able to estimate the total number of specimens and the biomass transferred. To do this, we propose a combined system of acoustic and optical techniques (both non-intrusive), in order to obtain direct values of acoustical target strength (TS) and information on the orientation of tuna inside the acoustic beam and their size. To achieve complete information, ventral and dorsal acoustic measurements are done using in a first attempt a multiplexed scientific echosounder with two 200 KHz split-beam transducers, while a stereoscopic video system provides optical information and allows estimating the size and the weight of the specimens. Preliminary results indicate that thiscombined use of techniques provides precise information to determine the TS as a function of fish orientation and for proper monitoring of tuna in floating cages.202320232012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/313798reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de Murciainfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3137982026-05-22T06:33:51Z
dc.title.none.fl_str_mv Biomass estimation of bluefin tuna in sea cages by the combined use of acoustic and optical techniques
title Biomass estimation of bluefin tuna in sea cages by the combined use of acoustic and optical techniques
spellingShingle Biomass estimation of bluefin tuna in sea cages by the combined use of acoustic and optical techniques
Puig, V.
Centro Oceanográfico de Murcia
Biomass
Acuicultura
biometrics
Aquaculture
bluefin tuna
acoustics
underwater
optical
target strength
title_short Biomass estimation of bluefin tuna in sea cages by the combined use of acoustic and optical techniques
title_full Biomass estimation of bluefin tuna in sea cages by the combined use of acoustic and optical techniques
title_fullStr Biomass estimation of bluefin tuna in sea cages by the combined use of acoustic and optical techniques
title_full_unstemmed Biomass estimation of bluefin tuna in sea cages by the combined use of acoustic and optical techniques
title_sort Biomass estimation of bluefin tuna in sea cages by the combined use of acoustic and optical techniques
dc.creator.none.fl_str_mv Puig, V.
Espinosa, Víctor
Soliveres, Ester
Ortega-García, Aurelio
Belmonte, Antonio
de-la-Gándara, Fernando
author Puig, V.
author_facet Puig, V.
Espinosa, Víctor
Soliveres, Ester
Ortega-García, Aurelio
Belmonte, Antonio
de-la-Gándara, Fernando
author_role author
author2 Espinosa, Víctor
Soliveres, Ester
Ortega-García, Aurelio
Belmonte, Antonio
de-la-Gándara, Fernando
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Centro Oceanográfico de Murcia
Biomass
Acuicultura
biometrics
Aquaculture
bluefin tuna
acoustics
underwater
optical
target strength
topic Centro Oceanográfico de Murcia
Biomass
Acuicultura
biometrics
Aquaculture
bluefin tuna
acoustics
underwater
optical
target strength
description In this paper, an experimental setup to estimate the biomass of caged bluefin tuna (Thunnus thynnus) in the Spanish Mediterranean coast is presented. Aims are to monitor individual tuna during all stages of growth, to control the transfer of fish caught in purse seines to towing cages and to be able to estimate the total number of specimens and the biomass transferred. To do this, we propose a combined system of acoustic and optical techniques (both non-intrusive), in order to obtain direct values of acoustical target strength (TS) and information on the orientation of tuna inside the acoustic beam and their size. To achieve complete information, ventral and dorsal acoustic measurements are done using in a first attempt a multiplexed scientific echosounder with two 200 KHz split-beam transducers, while a stereoscopic video system provides optical information and allows estimating the size and the weight of the specimens. Preliminary results indicate that thiscombined use of techniques provides precise information to determine the TS as a function of fish orientation and for proper monitoring of tuna in floating cages.
publishDate 2012
dc.date.none.fl_str_mv 2012
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/313798
url http://hdl.handle.net/10261/313798
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de Murcia
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869414779590803456
score 15.811543

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