Relationship between oceanographic variables and extreme albacore yield (Thunnus alalunga) of Spanish troll fishery in Northeast Atlantic
Using cloud-free Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E) sea surface temperature (SST) and daily set longline fishery data, we studied the relationship between albacore (ALB) fishing grounds and thermal conditions in the southern Indian Ocean. SST and Jensen–Sh...
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Language: | English |
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Online Access: | http://hdl.handle.net/10508/14651 http://hdl.handle.net/10261/312258 https://doi.org/10.1016/j.fishres.2011.08.017 |
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ftcsic:oai:digital.csic.es:10261/312258 2024-02-11T10:07:02+01:00 Relationship between oceanographic variables and extreme albacore yield (Thunnus alalunga) of Spanish troll fishery in Northeast Atlantic Ortiz-de-Zárate, Victoria Quelle, Pablo Seoane, J. 2023-06-19T09:09:30Z http://hdl.handle.net/10508/14651 http://hdl.handle.net/10261/312258 https://doi.org/10.1016/j.fishres.2011.08.017 en eng Elsevier BV Centro Oceanográfico de Santander 0165-7836 http://hdl.handle.net/10508/14651 http://hdl.handle.net/10261/312258 doi:10.1016/j.fishres.2011.08.017 24605 1872-6763 none Centro Oceanográfico de Santander artículo 2023 ftcsic https://doi.org/10.1016/j.fishres.2011.08.017 2024-01-16T11:43:19Z Using cloud-free Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E) sea surface temperature (SST) and daily set longline fishery data, we studied the relationship between albacore (ALB) fishing grounds and thermal conditions in the southern Indian Ocean. SST and Jensen–Shannon divergence (JSD) maps with a daily spatiotemporal resolution were related to sites with high catches per unit effort (CPUE) (>11 fish/103 hooks). A high JSD is considered to be an index of a SST front. In winter, high CPUE occurred in the vicinity of the North Subtropical Front (Belkin and Gordon, 1996), where SST was 15–19 °C and JSD was 0.3–0.9. Histograms of the high CPUE plotted against SST and JSD indicated that 95% of the high CPUEs were in the 16–18.5 °C SST range and 97% were in the 0.4–0.9 JSD range. These ranges of SST and JSD are optimum ranges. These cloud-free SST/JSD analyses clearly demonstrate the seasonal north–south movement of the optimum SST and JSD band, which corresponds to the North Subtropical Front in the southern Indian Ocean. Monthly maps of joint probability density (JPD) with the optimum ranges of SST and JSD revealed that high CPUEs are located in the narrow bands with high JPD (>50%). Sí Article in Journal/Newspaper Northeast Atlantic Digital.CSIC (Spanish National Research Council) Indian Fisheries Research 113 1 1 7 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Centro Oceanográfico de Santander |
spellingShingle |
Centro Oceanográfico de Santander Ortiz-de-Zárate, Victoria Quelle, Pablo Seoane, J. Relationship between oceanographic variables and extreme albacore yield (Thunnus alalunga) of Spanish troll fishery in Northeast Atlantic |
topic_facet |
Centro Oceanográfico de Santander |
description |
Using cloud-free Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E) sea surface temperature (SST) and daily set longline fishery data, we studied the relationship between albacore (ALB) fishing grounds and thermal conditions in the southern Indian Ocean. SST and Jensen–Shannon divergence (JSD) maps with a daily spatiotemporal resolution were related to sites with high catches per unit effort (CPUE) (>11 fish/103 hooks). A high JSD is considered to be an index of a SST front. In winter, high CPUE occurred in the vicinity of the North Subtropical Front (Belkin and Gordon, 1996), where SST was 15–19 °C and JSD was 0.3–0.9. Histograms of the high CPUE plotted against SST and JSD indicated that 95% of the high CPUEs were in the 16–18.5 °C SST range and 97% were in the 0.4–0.9 JSD range. These ranges of SST and JSD are optimum ranges. These cloud-free SST/JSD analyses clearly demonstrate the seasonal north–south movement of the optimum SST and JSD band, which corresponds to the North Subtropical Front in the southern Indian Ocean. Monthly maps of joint probability density (JPD) with the optimum ranges of SST and JSD revealed that high CPUEs are located in the narrow bands with high JPD (>50%). Sí |
format |
Article in Journal/Newspaper |
author |
Ortiz-de-Zárate, Victoria Quelle, Pablo Seoane, J. |
author_facet |
Ortiz-de-Zárate, Victoria Quelle, Pablo Seoane, J. |
author_sort |
Ortiz-de-Zárate, Victoria |
title |
Relationship between oceanographic variables and extreme albacore yield (Thunnus alalunga) of Spanish troll fishery in Northeast Atlantic |
title_short |
Relationship between oceanographic variables and extreme albacore yield (Thunnus alalunga) of Spanish troll fishery in Northeast Atlantic |
title_full |
Relationship between oceanographic variables and extreme albacore yield (Thunnus alalunga) of Spanish troll fishery in Northeast Atlantic |
title_fullStr |
Relationship between oceanographic variables and extreme albacore yield (Thunnus alalunga) of Spanish troll fishery in Northeast Atlantic |
title_full_unstemmed |
Relationship between oceanographic variables and extreme albacore yield (Thunnus alalunga) of Spanish troll fishery in Northeast Atlantic |
title_sort |
relationship between oceanographic variables and extreme albacore yield (thunnus alalunga) of spanish troll fishery in northeast atlantic |
publisher |
Elsevier BV |
publishDate |
2023 |
url |
http://hdl.handle.net/10508/14651 http://hdl.handle.net/10261/312258 https://doi.org/10.1016/j.fishres.2011.08.017 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
Centro Oceanográfico de Santander 0165-7836 http://hdl.handle.net/10508/14651 http://hdl.handle.net/10261/312258 doi:10.1016/j.fishres.2011.08.017 24605 1872-6763 |
op_rights |
none |
op_doi |
https://doi.org/10.1016/j.fishres.2011.08.017 |
container_title |
Fisheries Research |
container_volume |
113 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
7 |
_version_ |
1790605147822358528 |