A two-array system for localization of fish using passive acoustic data

Bibliographic Details
Main Author: Matos, André Onofre Baptista Lourenço de
Publication Date: 2021
Format: Master thesis
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10451/49365
Summary: Tese de mestrado, Bioestatística, Universidade de Lisboa, Faculdade de Ciências, 2021
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spelling A two-array system for localization of fish using passive acoustic dataacústica passivalocalizaçãoArgyrossomus regiusHallobatrachus didactylusEstuário do TejoTeses de mestrado - 2021Departamento de Estatística e Investigação OperacionalTese de mestrado, Bioestatística, Universidade de Lisboa, Faculdade de Ciências, 2021Passive acoustic localization methods use the time lag of a sound detected at several receivers (or at a single receiver via directed and reflected paths) to estimate the position, range or direction of a sound source. Even though the use of this method applied to vocal fish is still scarce in scientific literature, it has important potential applications, such as the elucidation of courtship and spawning behaviour of vocal fish, the estimation of the source level of vocalisations, the construction of reference libraries that associate sample vocalisations to the species that produce them, and the understanding of the role of vocal communication in social interactions such as those involved in reproductive competition. In the present text we present a low-cost system that can both estimate the positions of vocalising fish and intuitively convey the uncertainty of such estimates to the user. All the data presented in this work was obtained in a single test deployment of the recording equipment, and this dissertation was done within the context of a project with a longer temporal span. Therefore, the results presented here represent a fundamental but intermediate step towards the obtention and analysis of relevant biological data. Since studies using passive acoustic localization for fish triangulation are still scarce, and the methods employed are constrained by their specific features, it is hard to directly compare our method to the ones existing. Yet, some features in which it differs from previous work regarding fish localization by passive acoustic methods include (1) the usage of multiple arrays to overcome the limitation of point localization to distances of the same order of magnitude as the distance between the hydrophones of the array, (2) the output of a readily interpretable result that informs on both the estimated location and the associated uncertainty, (3) the modelling of the dependency structures between observed TDOAs of different pairs of hydrophones, and (4) the estimation of observed TOA variance using fish known to vocalise from fixed positions.Fonseca, Paulo Jorge Quintais Cancela da, 1958-Marques, Tiago AndréRepositório da Universidade de LisboaMatos, André Onofre Baptista Lourenço de2024-05-01T00:30:48Z202120212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10451/49365TID:202933733enginfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-03-17T14:36:43Zoai:repositorio.ulisboa.pt:10451/49365Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T03:16:58.981499Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv A two-array system for localization of fish using passive acoustic data
title A two-array system for localization of fish using passive acoustic data
spellingShingle A two-array system for localization of fish using passive acoustic data
Matos, André Onofre Baptista Lourenço de
acústica passiva
localização
Argyrossomus regius
Hallobatrachus didactylus
Estuário do Tejo
Teses de mestrado - 2021
Departamento de Estatística e Investigação Operacional
title_short A two-array system for localization of fish using passive acoustic data
title_full A two-array system for localization of fish using passive acoustic data
title_fullStr A two-array system for localization of fish using passive acoustic data
title_full_unstemmed A two-array system for localization of fish using passive acoustic data
title_sort A two-array system for localization of fish using passive acoustic data
author Matos, André Onofre Baptista Lourenço de
author_facet Matos, André Onofre Baptista Lourenço de
author_role author
dc.contributor.none.fl_str_mv Fonseca, Paulo Jorge Quintais Cancela da, 1958-
Marques, Tiago André
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Matos, André Onofre Baptista Lourenço de
dc.subject.por.fl_str_mv acústica passiva
localização
Argyrossomus regius
Hallobatrachus didactylus
Estuário do Tejo
Teses de mestrado - 2021
Departamento de Estatística e Investigação Operacional
topic acústica passiva
localização
Argyrossomus regius
Hallobatrachus didactylus
Estuário do Tejo
Teses de mestrado - 2021
Departamento de Estatística e Investigação Operacional
description Tese de mestrado, Bioestatística, Universidade de Lisboa, Faculdade de Ciências, 2021
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021-01-01T00:00:00Z
2024-05-01T00:30:48Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10451/49365
TID:202933733
url http://hdl.handle.net/10451/49365
identifier_str_mv TID:202933733
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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