Vocal repertoire and consistency of call features in the meagre Argyrosomous regius (Asso, 1801)

Detalhes bibliográficos
Autor(a) principal: Bolgan, Marta
Data de Publicação: 2020
Outros Autores: Pereira, Beatriz P., Crucianelli, Aurora, Mylonas, Constantinos C, Pousão-Ferreira, Pedro, Parmentier, Eric, Fonseca, Paulo J., Amorim, Maria Clara P
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.12/7829
Resumo: Passive Acoustic Monitoring (PAM) is a non-intrusive and cost-effective method capable of providing high-resolution, long-term information on the status and health of vocal populations and communities. To successfully monitor the same species over wide geographical and temporal scales, it is necessary to characterise the range of sound variability, as well as the consistency of sound features between populations. The meagre (Argyrosomus regius, Asso 1801) is an interesting case study because recent investigations suggest a wider vocal repertoire than previously described. In this study, meagre vocalizations were recorded and analysed from a variety of settings, ranging from rearing facilities to wild populations to provide a comprehensive characterisation of its vocal repertoire, while investigating the consistency of spawning sound features between populations. All sounds presented a similar acoustic structure in their basic unit (i.e. the pulse), while an important variability was found in the number of pulses; the meagre can emit sounds made of one single pulse or many pulses (up to more than 100). High level of overlap in the Principal Component Analysis made difficult to differentiate sound type clusters. Despite this, two sound types were identifiable: knocks (sounds from 1 to 3 pulses) and long grunts (sounds with more than 29 pulses). Discriminant Analysis carried out on PCA residuals showed that knock had the highest proportion of correct placement (92% of the observations correctly placed) followed by long grunts (80%). All other previously described sound types (intermediate grunt, short grunt and disturbance sounds) could not be separated and presented low levels of correct placement, suggesting that care should be taken when defining these as independent sound types. Finally, acoustic features consistency was found in meagre grunts emitted by different populations during spawning nights; statistical differences could be explained by recording settings and fish conditions. The results of this study provide important information for fostering PAM programs of wild meagre populations, while contributing to the discussion around the definition of fish sound types in vocal fish communities. Studies of this kind, which evaluate both variability and consistency of sound features, are of fundamental importance for maximising PAM efforts in the wild, at both the specific and the community level.
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spelling Vocal repertoire and consistency of call features in the meagre Argyrosomous regius (Asso, 1801)Passive Acoustic Monitoring (PAM) is a non-intrusive and cost-effective method capable of providing high-resolution, long-term information on the status and health of vocal populations and communities. To successfully monitor the same species over wide geographical and temporal scales, it is necessary to characterise the range of sound variability, as well as the consistency of sound features between populations. The meagre (Argyrosomus regius, Asso 1801) is an interesting case study because recent investigations suggest a wider vocal repertoire than previously described. In this study, meagre vocalizations were recorded and analysed from a variety of settings, ranging from rearing facilities to wild populations to provide a comprehensive characterisation of its vocal repertoire, while investigating the consistency of spawning sound features between populations. All sounds presented a similar acoustic structure in their basic unit (i.e. the pulse), while an important variability was found in the number of pulses; the meagre can emit sounds made of one single pulse or many pulses (up to more than 100). High level of overlap in the Principal Component Analysis made difficult to differentiate sound type clusters. Despite this, two sound types were identifiable: knocks (sounds from 1 to 3 pulses) and long grunts (sounds with more than 29 pulses). Discriminant Analysis carried out on PCA residuals showed that knock had the highest proportion of correct placement (92% of the observations correctly placed) followed by long grunts (80%). All other previously described sound types (intermediate grunt, short grunt and disturbance sounds) could not be separated and presented low levels of correct placement, suggesting that care should be taken when defining these as independent sound types. Finally, acoustic features consistency was found in meagre grunts emitted by different populations during spawning nights; statistical differences could be explained by recording settings and fish conditions. The results of this study provide important information for fostering PAM programs of wild meagre populations, while contributing to the discussion around the definition of fish sound types in vocal fish communities. Studies of this kind, which evaluate both variability and consistency of sound features, are of fundamental importance for maximising PAM efforts in the wild, at both the specific and the community level.Plos OneRepositório do ISPABolgan, MartaPereira, Beatriz P.Crucianelli, AuroraMylonas, Constantinos CPousão-Ferreira, PedroParmentier, EricFonseca, Paulo J.Amorim, Maria Clara P2020-11-16T12:20:51Z2020-01-01T00:00:00Z2020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.12/7829engPlos One, 15(11), 1-20 Doi:1932620310.1371/journal.pone.0241792info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-05T16:43:35Zoai:repositorio.ispa.pt:10400.12/7829Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:25:40.533895Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Vocal repertoire and consistency of call features in the meagre Argyrosomous regius (Asso, 1801)
title Vocal repertoire and consistency of call features in the meagre Argyrosomous regius (Asso, 1801)
spellingShingle Vocal repertoire and consistency of call features in the meagre Argyrosomous regius (Asso, 1801)
Bolgan, Marta
title_short Vocal repertoire and consistency of call features in the meagre Argyrosomous regius (Asso, 1801)
title_full Vocal repertoire and consistency of call features in the meagre Argyrosomous regius (Asso, 1801)
title_fullStr Vocal repertoire and consistency of call features in the meagre Argyrosomous regius (Asso, 1801)
title_full_unstemmed Vocal repertoire and consistency of call features in the meagre Argyrosomous regius (Asso, 1801)
title_sort Vocal repertoire and consistency of call features in the meagre Argyrosomous regius (Asso, 1801)
author Bolgan, Marta
author_facet Bolgan, Marta
Pereira, Beatriz P.
Crucianelli, Aurora
Mylonas, Constantinos C
Pousão-Ferreira, Pedro
Parmentier, Eric
Fonseca, Paulo J.
Amorim, Maria Clara P
author_role author
author2 Pereira, Beatriz P.
Crucianelli, Aurora
Mylonas, Constantinos C
Pousão-Ferreira, Pedro
Parmentier, Eric
Fonseca, Paulo J.
Amorim, Maria Clara P
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório do ISPA
dc.contributor.author.fl_str_mv Bolgan, Marta
Pereira, Beatriz P.
Crucianelli, Aurora
Mylonas, Constantinos C
Pousão-Ferreira, Pedro
Parmentier, Eric
Fonseca, Paulo J.
Amorim, Maria Clara P
description Passive Acoustic Monitoring (PAM) is a non-intrusive and cost-effective method capable of providing high-resolution, long-term information on the status and health of vocal populations and communities. To successfully monitor the same species over wide geographical and temporal scales, it is necessary to characterise the range of sound variability, as well as the consistency of sound features between populations. The meagre (Argyrosomus regius, Asso 1801) is an interesting case study because recent investigations suggest a wider vocal repertoire than previously described. In this study, meagre vocalizations were recorded and analysed from a variety of settings, ranging from rearing facilities to wild populations to provide a comprehensive characterisation of its vocal repertoire, while investigating the consistency of spawning sound features between populations. All sounds presented a similar acoustic structure in their basic unit (i.e. the pulse), while an important variability was found in the number of pulses; the meagre can emit sounds made of one single pulse or many pulses (up to more than 100). High level of overlap in the Principal Component Analysis made difficult to differentiate sound type clusters. Despite this, two sound types were identifiable: knocks (sounds from 1 to 3 pulses) and long grunts (sounds with more than 29 pulses). Discriminant Analysis carried out on PCA residuals showed that knock had the highest proportion of correct placement (92% of the observations correctly placed) followed by long grunts (80%). All other previously described sound types (intermediate grunt, short grunt and disturbance sounds) could not be separated and presented low levels of correct placement, suggesting that care should be taken when defining these as independent sound types. Finally, acoustic features consistency was found in meagre grunts emitted by different populations during spawning nights; statistical differences could be explained by recording settings and fish conditions. The results of this study provide important information for fostering PAM programs of wild meagre populations, while contributing to the discussion around the definition of fish sound types in vocal fish communities. Studies of this kind, which evaluate both variability and consistency of sound features, are of fundamental importance for maximising PAM efforts in the wild, at both the specific and the community level.
publishDate 2020
dc.date.none.fl_str_mv 2020-11-16T12:20:51Z
2020-01-01T00:00:00Z
2020-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.12/7829
url http://hdl.handle.net/10400.12/7829
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Plos One, 15(11), 1-20 Doi:
19326203
10.1371/journal.pone.0241792
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dc.publisher.none.fl_str_mv Plos One
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