Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga) in the North Atlantic for the period 1980-2009, compiled from statistics about ICCAT fishery region L9
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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ftdatacite:10.1594/pangaea.828233 2023-05-15T17:31:01+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 1980-2009, compiled from statistics about ICCAT fishery region L9 Lehodey, Patrick Senina, Inna Dragon, Anne-Cécile Arrizabalaga, Haritz 2014 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.828233 https://doi.pangaea.de/10.1594/PANGAEA.828233 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1594/pangaea.830797 https://dx.doi.org/10.5194/essd-6-317-2014 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Event label Code DATE/TIME LATITUDE LONGITUDE Fishing effort Thunnus alalunga, mass Line Fishing Bait Determined by number of hooks Basin Scale Analysis, Synthesis and Integration EURO-BASIN dataset Dataset 2014 ftdatacite https://doi.org/10.1594/pangaea.828233 https://doi.org/10.1594/pangaea.830797 https://doi.org/10.5194/essd-6-317-2014 2022-02-08T16:02:21Z 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. : This work was funded in part by the European project EURO-BASIN, funded by Framework Programme 7 (Contract 264933). Special thanks to ICCAT for the access to its public fishing database and Carlos Palma (ICCAT) and Alain Fonteneau (IRD) for their helpful advice on these data. Dataset North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Event label Code DATE/TIME LATITUDE LONGITUDE Fishing effort Thunnus alalunga, mass Line Fishing Bait Determined by number of hooks Basin Scale Analysis, Synthesis and Integration EURO-BASIN |
spellingShingle |
Event label Code DATE/TIME LATITUDE LONGITUDE Fishing effort Thunnus alalunga, mass Line Fishing Bait Determined by number of hooks Basin Scale Analysis, Synthesis and Integration EURO-BASIN 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 1980-2009, compiled from statistics about ICCAT fishery region L9 |
topic_facet |
Event label Code DATE/TIME LATITUDE LONGITUDE Fishing effort Thunnus alalunga, mass Line Fishing Bait Determined by number of hooks Basin Scale Analysis, Synthesis and Integration EURO-BASIN |
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. : This work was funded in part by the European project EURO-BASIN, funded by Framework Programme 7 (Contract 264933). Special thanks to ICCAT for the access to its public fishing database and Carlos Palma (ICCAT) and Alain Fonteneau (IRD) for their helpful advice on these data. |
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 1980-2009, compiled from statistics about ICCAT fishery region L9 |
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 1980-2009, compiled from statistics about ICCAT fishery region L9 |
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 1980-2009, compiled from statistics about ICCAT fishery region L9 |
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 1980-2009, compiled from statistics about ICCAT fishery region L9 |
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 1980-2009, compiled from statistics about ICCAT fishery region L9 |
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 1980-2009, compiled from statistics about iccat fishery region l9 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2014 |
url |
https://dx.doi.org/10.1594/pangaea.828233 https://doi.pangaea.de/10.1594/PANGAEA.828233 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1594/pangaea.830797 https://dx.doi.org/10.5194/essd-6-317-2014 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.828233 https://doi.org/10.1594/pangaea.830797 https://doi.org/10.5194/essd-6-317-2014 |
_version_ |
1766128316090155008 |