Agonistic behaviour and shoal composition of juvenile Diplodus sargus : First field observations
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.12/3553 |
Resumo: | Behavioural observations of juvenile Diplodus sargus in natural habitats were conducted to test whether agonistic interactions occur in natural circumstances and, if they do, in which context they happen. The level of aggression and the shoals composition were also compared between distinct natural habitats. Behavioural observations were also conducted in captivity, and the level of aggression was comparedwith the level recorded in natural conditions to investigate which factors may promote aggressive behaviours. The observations were performed at two sites in the Atlantic Portuguese shore: São Pedro do Estoril (38°41′N, 9°22′W) and Cabo Raso (38°42′N, 9°29′W) from early July to late August 2010 and from late July to early October 2011, respectively. In nature agonistic behaviours do occur, with a higher frequency in pools than in open areas. However, even the highest values observed in nature are significantly lower than those reported for captive conditions. Shoal composition also changed in different habitats, with more members and aggregates more compact in open areas.We suggested that the high levels of aggression observed in captive groups may be an artefact caused by very high densities in confined spaces and eventually by the accumulation of chemicals that are known to be released by stressed fish and can be detected by other conspecifics. The confinement imposed in captivity may also affect shoal composition limiting the number of members and inter-individual distances in each group. |
id |
RCAP_c98161095ebeac69e4834778c859629c |
---|---|
oai_identifier_str |
oai:repositorio.ispa.pt:10400.12/3553 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Agonistic behaviour and shoal composition of juvenile Diplodus sargus : First field observationsAggressive behaviourSocial structuresIntertidal habitatsField observationsSparidaeBehavioural observations of juvenile Diplodus sargus in natural habitats were conducted to test whether agonistic interactions occur in natural circumstances and, if they do, in which context they happen. The level of aggression and the shoals composition were also compared between distinct natural habitats. Behavioural observations were also conducted in captivity, and the level of aggression was comparedwith the level recorded in natural conditions to investigate which factors may promote aggressive behaviours. The observations were performed at two sites in the Atlantic Portuguese shore: São Pedro do Estoril (38°41′N, 9°22′W) and Cabo Raso (38°42′N, 9°29′W) from early July to late August 2010 and from late July to early October 2011, respectively. In nature agonistic behaviours do occur, with a higher frequency in pools than in open areas. However, even the highest values observed in nature are significantly lower than those reported for captive conditions. Shoal composition also changed in different habitats, with more members and aggregates more compact in open areas.We suggested that the high levels of aggression observed in captive groups may be an artefact caused by very high densities in confined spaces and eventually by the accumulation of chemicals that are known to be released by stressed fish and can be detected by other conspecifics. The confinement imposed in captivity may also affect shoal composition limiting the number of members and inter-individual distances in each group.Fundação para a Ciência e Tecnologia (FCT)SpringerRepositório do ISPAGonçalves, Ana R.Silva, Matheus Augusto Farias daVendrell, Catarina L.Almada, Vítor Carvalho2015-04-15T17:44:05Z2015-01-01T00:00:00Z2015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.12/3553engEnvironmental Biology of Fishes, 98, 1015-10210378-190910.1007/s10641-014-0334-8info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-05T16:39:24Zoai:repositorio.ispa.pt:10400.12/3553Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:21:27.056828Repositório 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 |
Agonistic behaviour and shoal composition of juvenile Diplodus sargus : First field observations |
title |
Agonistic behaviour and shoal composition of juvenile Diplodus sargus : First field observations |
spellingShingle |
Agonistic behaviour and shoal composition of juvenile Diplodus sargus : First field observations Gonçalves, Ana R. Aggressive behaviour Social structures Intertidal habitats Field observations Sparidae |
title_short |
Agonistic behaviour and shoal composition of juvenile Diplodus sargus : First field observations |
title_full |
Agonistic behaviour and shoal composition of juvenile Diplodus sargus : First field observations |
title_fullStr |
Agonistic behaviour and shoal composition of juvenile Diplodus sargus : First field observations |
title_full_unstemmed |
Agonistic behaviour and shoal composition of juvenile Diplodus sargus : First field observations |
title_sort |
Agonistic behaviour and shoal composition of juvenile Diplodus sargus : First field observations |
author |
Gonçalves, Ana R. |
author_facet |
Gonçalves, Ana R. Silva, Matheus Augusto Farias da Vendrell, Catarina L. Almada, Vítor Carvalho |
author_role |
author |
author2 |
Silva, Matheus Augusto Farias da Vendrell, Catarina L. Almada, Vítor Carvalho |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório do ISPA |
dc.contributor.author.fl_str_mv |
Gonçalves, Ana R. Silva, Matheus Augusto Farias da Vendrell, Catarina L. Almada, Vítor Carvalho |
dc.subject.por.fl_str_mv |
Aggressive behaviour Social structures Intertidal habitats Field observations Sparidae |
topic |
Aggressive behaviour Social structures Intertidal habitats Field observations Sparidae |
description |
Behavioural observations of juvenile Diplodus sargus in natural habitats were conducted to test whether agonistic interactions occur in natural circumstances and, if they do, in which context they happen. The level of aggression and the shoals composition were also compared between distinct natural habitats. Behavioural observations were also conducted in captivity, and the level of aggression was comparedwith the level recorded in natural conditions to investigate which factors may promote aggressive behaviours. The observations were performed at two sites in the Atlantic Portuguese shore: São Pedro do Estoril (38°41′N, 9°22′W) and Cabo Raso (38°42′N, 9°29′W) from early July to late August 2010 and from late July to early October 2011, respectively. In nature agonistic behaviours do occur, with a higher frequency in pools than in open areas. However, even the highest values observed in nature are significantly lower than those reported for captive conditions. Shoal composition also changed in different habitats, with more members and aggregates more compact in open areas.We suggested that the high levels of aggression observed in captive groups may be an artefact caused by very high densities in confined spaces and eventually by the accumulation of chemicals that are known to be released by stressed fish and can be detected by other conspecifics. The confinement imposed in captivity may also affect shoal composition limiting the number of members and inter-individual distances in each group. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-04-15T17:44:05Z 2015-01-01T00:00:00Z 2015-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.12/3553 |
url |
http://hdl.handle.net/10400.12/3553 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Environmental Biology of Fishes, 98, 1015-1021 0378-1909 10.1007/s10641-014-0334-8 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799130075385298945 |