Seasonal movements of veined squid Loligo forbesi in Scottish (UK) waters
Autor(a) principal: | |
---|---|
Data de Publicação: | 2009 |
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/10400.1/11501 |
Resumo: | In order to protect and sustainably manage fishery resource species, it is essential to understand their movements and habitat use. To detect the hypothesised migration of maturing veined squid Loligo forbesi from the west coast of Scotland (UK) to the North Sea and identify possible inshore-offshore movements, we analysed seasonal, spatial and environmental patterns in abundance and size distribution, based on commercial fishery landings data and trawl survey data from Scottish coastal waters (International Council for the Exploration of the Sea, ICES areas IVa, IVb and VIa). A geographic information system (GIS) was used to build monthly contour maps of abundance. Generalised additive mixed models (GAMM) were used to quantify patterns in size distribution and abundance. In most years, there was no evidence of movement from the West to the East coast of Scotland. Evidence of inshore-offshore movements during the life-cycle of the cohort that recruits in autumn (winter breeders) was found instead. The winter breeding cohort appears to spawn in inshore waters and some evidence suggests that the spawning grounds of the summer breeders are also inshore. Across seasons, higher abundance of L. forbesi can generally be found in the north of Scotland at intermediate water depths and in warmer waters. |
id |
RCAP_8248b050c67251a37e0f67c37d2f419c |
---|---|
oai_identifier_str |
oai:sapientia.ualg.pt:10400.1/11501 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Seasonal movements of veined squid Loligo forbesi in Scottish (UK) watersNortheast AtlanticFished populationIrish watersAbundanceCephalopodaRecruitmentPatternsGahiLoliginidaeScotlandIn order to protect and sustainably manage fishery resource species, it is essential to understand their movements and habitat use. To detect the hypothesised migration of maturing veined squid Loligo forbesi from the west coast of Scotland (UK) to the North Sea and identify possible inshore-offshore movements, we analysed seasonal, spatial and environmental patterns in abundance and size distribution, based on commercial fishery landings data and trawl survey data from Scottish coastal waters (International Council for the Exploration of the Sea, ICES areas IVa, IVb and VIa). A geographic information system (GIS) was used to build monthly contour maps of abundance. Generalised additive mixed models (GAMM) were used to quantify patterns in size distribution and abundance. In most years, there was no evidence of movement from the West to the East coast of Scotland. Evidence of inshore-offshore movements during the life-cycle of the cohort that recruits in autumn (winter breeders) was found instead. The winter breeding cohort appears to spawn in inshore waters and some evidence suggests that the spawning grounds of the summer breeders are also inshore. Across seasons, higher abundance of L. forbesi can generally be found in the north of Scotland at intermediate water depths and in warmer waters.Edp Sciences S ASapientiaViana, MafaldaPierce, Graham J.Illian, JanineMacLeod, Colin D.Bailey, NickWang, JianjunHastie, Lee C.2018-12-07T14:53:24Z2009-092009-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11501eng0990-744010.1051/alr/2009026info: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:RCAAP2023-07-24T10:23:19Zoai:sapientia.ualg.pt:10400.1/11501Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:02:59.879782Repositório 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 |
Seasonal movements of veined squid Loligo forbesi in Scottish (UK) waters |
title |
Seasonal movements of veined squid Loligo forbesi in Scottish (UK) waters |
spellingShingle |
Seasonal movements of veined squid Loligo forbesi in Scottish (UK) waters Viana, Mafalda Northeast Atlantic Fished population Irish waters Abundance Cephalopoda Recruitment Patterns Gahi Loliginidae Scotland |
title_short |
Seasonal movements of veined squid Loligo forbesi in Scottish (UK) waters |
title_full |
Seasonal movements of veined squid Loligo forbesi in Scottish (UK) waters |
title_fullStr |
Seasonal movements of veined squid Loligo forbesi in Scottish (UK) waters |
title_full_unstemmed |
Seasonal movements of veined squid Loligo forbesi in Scottish (UK) waters |
title_sort |
Seasonal movements of veined squid Loligo forbesi in Scottish (UK) waters |
author |
Viana, Mafalda |
author_facet |
Viana, Mafalda Pierce, Graham J. Illian, Janine MacLeod, Colin D. Bailey, Nick Wang, Jianjun Hastie, Lee C. |
author_role |
author |
author2 |
Pierce, Graham J. Illian, Janine MacLeod, Colin D. Bailey, Nick Wang, Jianjun Hastie, Lee C. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Viana, Mafalda Pierce, Graham J. Illian, Janine MacLeod, Colin D. Bailey, Nick Wang, Jianjun Hastie, Lee C. |
dc.subject.por.fl_str_mv |
Northeast Atlantic Fished population Irish waters Abundance Cephalopoda Recruitment Patterns Gahi Loliginidae Scotland |
topic |
Northeast Atlantic Fished population Irish waters Abundance Cephalopoda Recruitment Patterns Gahi Loliginidae Scotland |
description |
In order to protect and sustainably manage fishery resource species, it is essential to understand their movements and habitat use. To detect the hypothesised migration of maturing veined squid Loligo forbesi from the west coast of Scotland (UK) to the North Sea and identify possible inshore-offshore movements, we analysed seasonal, spatial and environmental patterns in abundance and size distribution, based on commercial fishery landings data and trawl survey data from Scottish coastal waters (International Council for the Exploration of the Sea, ICES areas IVa, IVb and VIa). A geographic information system (GIS) was used to build monthly contour maps of abundance. Generalised additive mixed models (GAMM) were used to quantify patterns in size distribution and abundance. In most years, there was no evidence of movement from the West to the East coast of Scotland. Evidence of inshore-offshore movements during the life-cycle of the cohort that recruits in autumn (winter breeders) was found instead. The winter breeding cohort appears to spawn in inshore waters and some evidence suggests that the spawning grounds of the summer breeders are also inshore. Across seasons, higher abundance of L. forbesi can generally be found in the north of Scotland at intermediate water depths and in warmer waters. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-09 2009-09-01T00:00:00Z 2018-12-07T14:53:24Z |
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/10400.1/11501 |
url |
http://hdl.handle.net/10400.1/11501 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0990-7440 10.1051/alr/2009026 |
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.publisher.none.fl_str_mv |
Edp Sciences S A |
publisher.none.fl_str_mv |
Edp Sciences S A |
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_ |
1799133264314630144 |