Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga) in the North Atlantic for the period 1987-2011, compiled from statistics about ICCAT fishery region L7
The development of the ecosystem approach and models for the management of ocean marine resources requires easy access to standard validated datasets of historical catch data for the main exploited species. They are used to measure the impact of biomass removal by fisheries and to evaluate the model...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.828231 https://doi.org/10.1594/PANGAEA.828231 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.828231 2023-05-15T17:31:02+02:00 Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga) in the North Atlantic for the period 1987-2011, compiled from statistics about ICCAT fishery region L7 Lehodey, Patrick Senina, Inna Dragon, Anne-Cécile Arrizabalaga, Haritz MEDIAN LATITUDE: 5.664055 * MEDIAN LONGITUDE: -25.340706 * SOUTH-BOUND LATITUDE: 2.500000 * WEST-BOUND LONGITUDE: -82.500000 * NORTH-BOUND LATITUDE: 12.500000 * EAST-BOUND LONGITUDE: 7.500000 * DATE/TIME START: 1987-04-15T00:00:00 * DATE/TIME END: 2011-12-15T00:00:00 2014-01-29 text/tab-separated-values, 15123 data points https://doi.pangaea.de/10.1594/PANGAEA.828231 https://doi.org/10.1594/PANGAEA.828231 en eng PANGAEA https://doi.org/10.1594/PANGAEA.830797 Lehodey, Patrick; Senina, Inna; Dragon, Anne-Cécile; Arrizabalaga, Haritz (2014): Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga). Earth System Science Data, 6(2), 317-329, https://doi.org/10.5194/essd-6-317-2014 Report of the 2009 ICCAT Albacore Stock Assessment Session (Madrid, Spain, July 13 to 18, 2009) (2010). Collective Volume of Scientific Papers, 65(4), 1113-1253, hdl:10013/epic.42942.d001 Report of the 2013 ICCAT North and South Atlantic Albacore data preparatory meeting (Madrid, Spain - April 22 to 26, 2013) (2013). 66, hdl:10013/epic.42942.d002 https://doi.pangaea.de/10.1594/PANGAEA.828231 https://doi.org/10.1594/PANGAEA.828231 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Collecte Localisation Satellites Basin Scale Analysis Synthesis and Integration Code DATE/TIME Determined by number of hooks EURO-BASIN Event label Fishing effort ICCAT-L7 LATITUDE LFB Line Fishing Bait LONGITUDE Thunnus alalunga mass Dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.828231 https://doi.org/10.1594/PANGAEA.830797 https://doi.org/10.5194/essd-6-317-2014 2023-01-20T09:49:10Z The development of the ecosystem approach and models for the management of ocean marine resources requires easy access to standard validated datasets of historical catch data for the main exploited species. They are used to measure the impact of biomass removal by fisheries and to evaluate the models skills, while the use of standard dataset facilitates models inter-comparison. North Atlantic albacore tuna is exploited all year round by longline and in summer and autumn by surface fisheries and fishery statistics compiled by the International Commission for the Conservation of Atlantic Tunas (ICCAT). Catch and effort with geographical coordinates at monthly spatial resolution of 1° or 5° squares were extracted for this species with a careful definition of fisheries and data screening. In total, thirteen fisheries were defined for the period 1956-2010, with fishing gears longline, troll, mid-water trawl and bait fishing. However, the spatialized catch effort data available in ICCAT database represent a fraction of the entire total catch. Length frequencies of catch were also extracted according to the definition of fisheries above for the period 1956-2010 with a quarterly temporal resolution and spatial resolutions varying from 1°x 1° to 10°x 20°. The resolution used to measure the fish also varies with size-bins of 1, 2 or 5 cm (Fork Length). The screening of data allowed detecting inconsistencies with a relatively large number of samples larger than 150 cm while all studies on the growth of albacore suggest that fish rarely grow up over 130 cm. Therefore, a threshold value of 130 cm has been arbitrarily fixed and all length frequency data above this value removed from the original data set. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-82.500000,7.500000,12.500000,2.500000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Basin Scale Analysis Synthesis and Integration Code DATE/TIME Determined by number of hooks EURO-BASIN Event label Fishing effort ICCAT-L7 LATITUDE LFB Line Fishing Bait LONGITUDE Thunnus alalunga mass |
spellingShingle |
Basin Scale Analysis Synthesis and Integration Code DATE/TIME Determined by number of hooks EURO-BASIN Event label Fishing effort ICCAT-L7 LATITUDE LFB Line Fishing Bait LONGITUDE Thunnus alalunga mass Lehodey, Patrick Senina, Inna Dragon, Anne-Cécile Arrizabalaga, Haritz Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga) in the North Atlantic for the period 1987-2011, compiled from statistics about ICCAT fishery region L7 |
topic_facet |
Basin Scale Analysis Synthesis and Integration Code DATE/TIME Determined by number of hooks EURO-BASIN Event label Fishing effort ICCAT-L7 LATITUDE LFB Line Fishing Bait LONGITUDE Thunnus alalunga mass |
description |
The development of the ecosystem approach and models for the management of ocean marine resources requires easy access to standard validated datasets of historical catch data for the main exploited species. They are used to measure the impact of biomass removal by fisheries and to evaluate the models skills, while the use of standard dataset facilitates models inter-comparison. North Atlantic albacore tuna is exploited all year round by longline and in summer and autumn by surface fisheries and fishery statistics compiled by the International Commission for the Conservation of Atlantic Tunas (ICCAT). Catch and effort with geographical coordinates at monthly spatial resolution of 1° or 5° squares were extracted for this species with a careful definition of fisheries and data screening. In total, thirteen fisheries were defined for the period 1956-2010, with fishing gears longline, troll, mid-water trawl and bait fishing. However, the spatialized catch effort data available in ICCAT database represent a fraction of the entire total catch. Length frequencies of catch were also extracted according to the definition of fisheries above for the period 1956-2010 with a quarterly temporal resolution and spatial resolutions varying from 1°x 1° to 10°x 20°. The resolution used to measure the fish also varies with size-bins of 1, 2 or 5 cm (Fork Length). The screening of data allowed detecting inconsistencies with a relatively large number of samples larger than 150 cm while all studies on the growth of albacore suggest that fish rarely grow up over 130 cm. Therefore, a threshold value of 130 cm has been arbitrarily fixed and all length frequency data above this value removed from the original data set. |
format |
Dataset |
author |
Lehodey, Patrick Senina, Inna Dragon, Anne-Cécile Arrizabalaga, Haritz |
author_facet |
Lehodey, Patrick Senina, Inna Dragon, Anne-Cécile Arrizabalaga, Haritz |
author_sort |
Lehodey, Patrick |
title |
Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga) in the North Atlantic for the period 1987-2011, compiled from statistics about ICCAT fishery region L7 |
title_short |
Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga) in the North Atlantic for the period 1987-2011, compiled from statistics about ICCAT fishery region L7 |
title_full |
Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga) in the North Atlantic for the period 1987-2011, compiled from statistics about ICCAT fishery region L7 |
title_fullStr |
Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga) in the North Atlantic for the period 1987-2011, compiled from statistics about ICCAT fishery region L7 |
title_full_unstemmed |
Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga) in the North Atlantic for the period 1987-2011, compiled from statistics about ICCAT fishery region L7 |
title_sort |
spatially explicit estimates of stock size, structure and biomass of north atlantic albacore tuna (thunnus alalunga) in the north atlantic for the period 1987-2011, compiled from statistics about iccat fishery region l7 |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.828231 https://doi.org/10.1594/PANGAEA.828231 |
op_coverage |
MEDIAN LATITUDE: 5.664055 * MEDIAN LONGITUDE: -25.340706 * SOUTH-BOUND LATITUDE: 2.500000 * WEST-BOUND LONGITUDE: -82.500000 * NORTH-BOUND LATITUDE: 12.500000 * EAST-BOUND LONGITUDE: 7.500000 * DATE/TIME START: 1987-04-15T00:00:00 * DATE/TIME END: 2011-12-15T00:00:00 |
long_lat |
ENVELOPE(-82.500000,7.500000,12.500000,2.500000) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Collecte Localisation Satellites |
op_relation |
https://doi.org/10.1594/PANGAEA.830797 Lehodey, Patrick; Senina, Inna; Dragon, Anne-Cécile; Arrizabalaga, Haritz (2014): Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga). Earth System Science Data, 6(2), 317-329, https://doi.org/10.5194/essd-6-317-2014 Report of the 2009 ICCAT Albacore Stock Assessment Session (Madrid, Spain, July 13 to 18, 2009) (2010). Collective Volume of Scientific Papers, 65(4), 1113-1253, hdl:10013/epic.42942.d001 Report of the 2013 ICCAT North and South Atlantic Albacore data preparatory meeting (Madrid, Spain - April 22 to 26, 2013) (2013). 66, hdl:10013/epic.42942.d002 https://doi.pangaea.de/10.1594/PANGAEA.828231 https://doi.org/10.1594/PANGAEA.828231 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.828231 https://doi.org/10.1594/PANGAEA.830797 https://doi.org/10.5194/essd-6-317-2014 |
_version_ |
1766128330108567552 |