Cycles, trends, and residual variation in the Iberian sardine (Sardina pilchardus) recruitment series, and their relationship with the environment
Recruitment variability is an important component of the dynamics of Iberian sardine ( Sardine pilchardus ). Since 2006, poor recruit- ment has led to a decrease in stock biomass, the latest in a series of such crises for sardine fisheries. Understanding the mechanisms behind recruitment fluctuation...
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2012
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Online Access: | http://hdl.handle.net/10508/8140 https://doi.org/10.1093/icesjms/fsr186 |
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ftieo:oai:repositorio.ieo.es:10508/8140 2023-05-15T17:41:31+02:00 Cycles, trends, and residual variation in the Iberian sardine (Sardina pilchardus) recruitment series, and their relationship with the environment Santos, M.B. (María Begoña) González-Quirós, R. (Rafael) Riveiro, I. (Isabel) Cabanas-López, J.M. (José Manuel) Porteiro-Lago, C. (Carmen) Pierce, G.J. (Graham John) Atlantic Ocean Eastern Atlantic Northeast Atlantic Iberian waters 2012 http://hdl.handle.net/10508/8140 https://doi.org/10.1093/icesjms/fsr186 unknown Centro Oceanográfico de Vigo http://icesjms.oxfordjournals.org/content/69/5/739 http://hdl.handle.net/10508/8140 ICES Journal Of Marine Science, 69 (5). 2011: 739-750 doi:10.1093/icesjms/fsr186 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess CC-BY-NC-ND Environmental drivers Iberia Recruitment Sardine Time-series article 2012 ftieo https://doi.org/10.1093/icesjms/fsr186 2022-08-30T23:47:16Z Recruitment variability is an important component of the dynamics of Iberian sardine ( Sardine pilchardus ). Since 2006, poor recruit- ment has led to a decrease in stock biomass, the latest in a series of such crises for sardine fisheries. Understanding the mechanisms behind recruitment fluctuations has been the objective of many previous studies, and various relationships between recruitment and environmental variables have been proposed. However, such studies face several analytical challenges, including short time-series and autocorrelated data. A new analysis of empirical relationships with environmental series is presented, using statistical methods designed to cope with these issues, including dynamic factor analysis, generalized additive models, and mixed models. Relationships are identified between recruitment and global (number of sunspots), regional (NAO Autumn ), and local [winter wind strength, sea surface temperature (SST), and upwelling] environmental variables. Separating these series into trend and noise compo- nents permitted further investigation of the nature of the relationships. Whereas the other three environmental variables were related to the trend in recruitment, SST was related to residual variation around the trend, providing stronger evidence for a causal link, pos- sible mechanisms for which are discussed. After the removal of trend and cyclic components, residual variation in recruitment is also weakly related to the previous year’s spawning-stock biomass. 2 Article in Journal/Newspaper Northeast Atlantic Instituto Español de Oceanografía: e-IEO ICES Journal of Marine Science 69 5 739 750 |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
unknown |
topic |
Environmental drivers Iberia Recruitment Sardine Time-series |
spellingShingle |
Environmental drivers Iberia Recruitment Sardine Time-series Santos, M.B. (María Begoña) González-Quirós, R. (Rafael) Riveiro, I. (Isabel) Cabanas-López, J.M. (José Manuel) Porteiro-Lago, C. (Carmen) Pierce, G.J. (Graham John) Cycles, trends, and residual variation in the Iberian sardine (Sardina pilchardus) recruitment series, and their relationship with the environment |
topic_facet |
Environmental drivers Iberia Recruitment Sardine Time-series |
description |
Recruitment variability is an important component of the dynamics of Iberian sardine ( Sardine pilchardus ). Since 2006, poor recruit- ment has led to a decrease in stock biomass, the latest in a series of such crises for sardine fisheries. Understanding the mechanisms behind recruitment fluctuations has been the objective of many previous studies, and various relationships between recruitment and environmental variables have been proposed. However, such studies face several analytical challenges, including short time-series and autocorrelated data. A new analysis of empirical relationships with environmental series is presented, using statistical methods designed to cope with these issues, including dynamic factor analysis, generalized additive models, and mixed models. Relationships are identified between recruitment and global (number of sunspots), regional (NAO Autumn ), and local [winter wind strength, sea surface temperature (SST), and upwelling] environmental variables. Separating these series into trend and noise compo- nents permitted further investigation of the nature of the relationships. Whereas the other three environmental variables were related to the trend in recruitment, SST was related to residual variation around the trend, providing stronger evidence for a causal link, pos- sible mechanisms for which are discussed. After the removal of trend and cyclic components, residual variation in recruitment is also weakly related to the previous year’s spawning-stock biomass. 2 |
format |
Article in Journal/Newspaper |
author |
Santos, M.B. (María Begoña) González-Quirós, R. (Rafael) Riveiro, I. (Isabel) Cabanas-López, J.M. (José Manuel) Porteiro-Lago, C. (Carmen) Pierce, G.J. (Graham John) |
author_facet |
Santos, M.B. (María Begoña) González-Quirós, R. (Rafael) Riveiro, I. (Isabel) Cabanas-López, J.M. (José Manuel) Porteiro-Lago, C. (Carmen) Pierce, G.J. (Graham John) |
author_sort |
Santos, M.B. (María Begoña) |
title |
Cycles, trends, and residual variation in the Iberian sardine (Sardina pilchardus) recruitment series, and their relationship with the environment |
title_short |
Cycles, trends, and residual variation in the Iberian sardine (Sardina pilchardus) recruitment series, and their relationship with the environment |
title_full |
Cycles, trends, and residual variation in the Iberian sardine (Sardina pilchardus) recruitment series, and their relationship with the environment |
title_fullStr |
Cycles, trends, and residual variation in the Iberian sardine (Sardina pilchardus) recruitment series, and their relationship with the environment |
title_full_unstemmed |
Cycles, trends, and residual variation in the Iberian sardine (Sardina pilchardus) recruitment series, and their relationship with the environment |
title_sort |
cycles, trends, and residual variation in the iberian sardine (sardina pilchardus) recruitment series, and their relationship with the environment |
publisher |
Centro Oceanográfico de Vigo |
publishDate |
2012 |
url |
http://hdl.handle.net/10508/8140 https://doi.org/10.1093/icesjms/fsr186 |
op_coverage |
Atlantic Ocean Eastern Atlantic Northeast Atlantic Iberian waters |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
http://icesjms.oxfordjournals.org/content/69/5/739 http://hdl.handle.net/10508/8140 ICES Journal Of Marine Science, 69 (5). 2011: 739-750 doi:10.1093/icesjms/fsr186 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1093/icesjms/fsr186 |
container_title |
ICES Journal of Marine Science |
container_volume |
69 |
container_issue |
5 |
container_start_page |
739 |
op_container_end_page |
750 |
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1766143118918287360 |