Size distribution of porbeagle (lamna nasus) inferred from a data
A total of 5,136 size observations of porbeagle were recovered for the period 1987-2017. The GLM results explained very moderately the variability of the sizes considering three main factors, suggesting minor but significant differences in some cases especially for the year factor and non-significan...
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ftieo:oai:repositorio.ieo.es:10508/14958 2023-06-11T04:13:48+02:00 Size distribution of porbeagle (lamna nasus) inferred from a data Mejuto-García, J. (Jaime) Ramos-Cartelle, A. (Ana) García-Cortés, B. (Blanca) Fernández-Costa, J. (José) http://hdl.handle.net/10508/14958 eng eng Centro Oceanográfico de A Coruña SCRS/2020/073 http://hdl.handle.net/10508/14958 shark porbeagle size biology research article ftieo 2023-05-02T23:49:30Z A total of 5,136 size observations of porbeagle were recovered for the period 1987-2017. The GLM results explained very moderately the variability of the sizes considering three main factors, suggesting minor but significant differences in some cases especially for the year factor and non-significant differences in other factors depending on the analysis. The greatest differences in the standardized mean length between some zones were caused by some large fish of unidentified sex. The standardized mean length data for the northern zones showed stability throughout the time series, very stable range of mean values and very few differences between sexes. The size distribution for northern areas indicated an FL-overall mean of 158 cm. The size showed a normal distribution confirming that a small fraction of individuals of this stock/s is available in the oceanic areas where the North Atlantic fleet is regularly fishing and the fishes are not fully recruited to those areas and / or this fishing gear up to 160 cm. The data suggests that some individuals could sporadically reach some intertropical areas of the Atlantic Article in Journal/Newspaper Lamna nasus North Atlantic Porbeagle Instituto Español de Oceanografía: e-IEO |
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Open Polar |
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Instituto Español de Oceanografía: e-IEO |
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ftieo |
language |
English |
topic |
shark porbeagle size biology |
spellingShingle |
shark porbeagle size biology Mejuto-García, J. (Jaime) Ramos-Cartelle, A. (Ana) García-Cortés, B. (Blanca) Fernández-Costa, J. (José) Size distribution of porbeagle (lamna nasus) inferred from a data |
topic_facet |
shark porbeagle size biology |
description |
A total of 5,136 size observations of porbeagle were recovered for the period 1987-2017. The GLM results explained very moderately the variability of the sizes considering three main factors, suggesting minor but significant differences in some cases especially for the year factor and non-significant differences in other factors depending on the analysis. The greatest differences in the standardized mean length between some zones were caused by some large fish of unidentified sex. The standardized mean length data for the northern zones showed stability throughout the time series, very stable range of mean values and very few differences between sexes. The size distribution for northern areas indicated an FL-overall mean of 158 cm. The size showed a normal distribution confirming that a small fraction of individuals of this stock/s is available in the oceanic areas where the North Atlantic fleet is regularly fishing and the fishes are not fully recruited to those areas and / or this fishing gear up to 160 cm. The data suggests that some individuals could sporadically reach some intertropical areas of the Atlantic |
format |
Article in Journal/Newspaper |
author |
Mejuto-García, J. (Jaime) Ramos-Cartelle, A. (Ana) García-Cortés, B. (Blanca) Fernández-Costa, J. (José) |
author_facet |
Mejuto-García, J. (Jaime) Ramos-Cartelle, A. (Ana) García-Cortés, B. (Blanca) Fernández-Costa, J. (José) |
author_sort |
Mejuto-García, J. (Jaime) |
title |
Size distribution of porbeagle (lamna nasus) inferred from a data |
title_short |
Size distribution of porbeagle (lamna nasus) inferred from a data |
title_full |
Size distribution of porbeagle (lamna nasus) inferred from a data |
title_fullStr |
Size distribution of porbeagle (lamna nasus) inferred from a data |
title_full_unstemmed |
Size distribution of porbeagle (lamna nasus) inferred from a data |
title_sort |
size distribution of porbeagle (lamna nasus) inferred from a data |
publisher |
Centro Oceanográfico de A Coruña |
url |
http://hdl.handle.net/10508/14958 |
genre |
Lamna nasus North Atlantic Porbeagle |
genre_facet |
Lamna nasus North Atlantic Porbeagle |
op_relation |
SCRS/2020/073 http://hdl.handle.net/10508/14958 |
_version_ |
1768391163134345216 |