Citation:

PANGAEA.828168

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Abstract:

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.

Related to:

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

Further details:

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

Project(s):

Basin Scale Analysis, Synthesis and Integration (EURO-BASIN)

Funding:

Seventh Framework Programme (FP7), grant/award no. 264933 : Basin Scale Analysis, Synthesis and Integration

Coverage:

Date/Time Start: 1978-02-15T00:00:00 * Date/Time End: 2011-02-15T00:00:00

Event(s):

ICCAT-L2 * Method/Device: Longline deployment (LLDEP) * Comment: ICAAT-fisherycode: L2 = Japan; spatial resolution = 5 square degree

ICCAT-L8 * Method/Device: Line Fishing Bait (LFB) * Comment: ICAAT-fisherycode: L8 = Korea; spatial resolution = 5 square degree

Comment:

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.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event
2	DATE/TIME	Date/Time			Geocode
3	Code	Code		Lehodey, Patrick	of ICAAT fishery
4	Code	Code		Lehodey, Patrick	of the region
5	Longitude, westbound	Longitude west		Lehodey, Patrick
6	Longitude, eastbound	Longitude east		Lehodey, Patrick
7	Latitude, northbound	Latitude north		Lehodey, Patrick
8	Latitude, southbound	Latitude south		Lehodey, Patrick
9	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	65-70 cm
10	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	70-75 cm
11	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	75-80 cm
12	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	80-85 cm
13	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	85-90 cm
14	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	90-95 cm
15	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	95-100 cm
16	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	100-105 cm
17	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	105-110 cm
18	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	110-115 cm
19	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	115-120 cm
20	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	120-125 cm
21	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	125-130 cm
22	Thunnus alalunga, length frequency	T. alalunga L F	#	Lehodey, Patrick	130-135 cm

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

1040 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Date/Time	3 Code (of ICAAT fishery)	4 Code (of the region)	5 Longitude west	6 Longitude east	7 Latitude north	8 Latitude south	9 T. alalunga L F [#] (65-70 cm)	10 T. alalunga L F [#] (70-75 cm)	11 T. alalunga L F [#] (75-80 cm)	12 T. alalunga L F [#] (80-85 cm)	13 T. alalunga L F [#] (85-90 cm)	14 T. alalunga L F [#] (90-95 cm)	15 T. alalunga L F [#] (95-100 cm)	16 T. alalunga L F [#] (100-105 cm)	17 T. alalunga L F [#] (105-110 cm)	18 T. alalunga L F [#] (110-115 cm)	19 T. alalunga L F [#] (115-120 cm)	20 T. alalunga L F [#] (120-125 cm)	21 T. alalunga L F [#] (125-130 cm)	22 T. alalunga L F [#] (130-135 cm)
ICCAT-L2	2009-02-15	L2	244	-20	-40	20	10	0	0	0	0	0	0	1	2	2	2	0	0	0	0
ICCAT-L2	2009-05-15	L2	244	-20	-40	20	10	0	0	0	0	0	0	2	5	5	8	8	2	1	0
ICCAT-L2	2009-08-15	L2	244	-20	-40	20	10	0	0	0	0	0	0	0	1	3	8	3	2	2	0
ICCAT-L2	2009-11-15	L2	245	-60	-80	30	20	0	0	0	0	0	3	5	22	56	65	32	2	0	0
ICCAT-L2	2009-11-15	L2	246	-40	-60	40	30	0	0	0	0	0	0	0	1	1	0	0	0	0	0
ICCAT-L2	2009-11-15	L2	247	-60	-80	50	40	0	0	0	0	0	6	20	49	116	104	89	13	2	0
ICCAT-L2	2009-11-15	L2	248	-40	-60	60	50	0	0	0	1	12	12	17	2	1	1	0	0	0	0
ICCAT-L2	2010-02-15	L2	244	-20	-40	20	10	0	0	0	0	0	1	0	0	0	0	0	1	0	0
ICCAT-L2	2010-02-15	L2	245	-60	-80	30	20	0	0	0	1	2	18	57	136	237	130	121	28	0	0
ICCAT-L2	2010-05-15	L2	249	-60	-80	70	60	0	0	1	0	18	20	110	9	37	7	11	3	0	0
ICCAT-L2	2010-08-15	L2	249	-60	-80	70	60	0	0	0	0	1	4	3	2	5	0	1	0	0	0
ICCAT-L2	2010-11-15	L2	248	-40	-60	60	50	16	26	42	19	19	5	3	1	0	0	1	0	0	0
ICCAT-L2	2011-02-15	L2	244	-20	-40	20	10	0	0	0	1	0	5	0	1	5	1	4	0	0	0
ICCAT-L2	2011-02-15	L2	248	-40	-60	60	50	3	10	8	8	8	4	1	0	1	0	1	0	0	0
ICCAT-L8	1978-02-15	L8	246	-40	-60	40	30	0	0	1	4	15	29	15	8	6	1	3	0	0	0
ICCAT-L8	1978-02-15	L8	247	-60	-80	50	40	0	0	0	2	0	21	17	14	6	0	0	0	0	0
ICCAT-L8	1978-02-15	L8	245	-60	-80	30	20	0	0	3	5	9	17	31	17	3	1	0	0	0	0
ICCAT-L8	1978-02-15	L8	250	-20	-40	80	70	0	0	1	2	2	1	3	3	4	1	3	2	3	0
ICCAT-L8	1978-02-15	L8	251	20	0	90	80	0	0	1	1	4	3	17	19	4	0	5	1	2	0
ICCAT-L8	1978-02-15	L8	250	-20	-40	80	70	0	0	0	3	7	15	8	30	28	6	1	1	0	0
ICCAT-L8	1978-05-15	L8	247	-60	-80	50	40	0	0	1	3	3	6	10	10	12	9	2	2	2	0
ICCAT-L8	1978-05-15	L8	245	-60	-80	30	20	0	11	4	12	15	93	69	59	29	37	5	5	1	0
ICCAT-L8	1978-05-15	L8	252	-40	-60	100	90	0	0	0	1	3	2	2	0	0	0	0	0	0	0
ICCAT-L8	1978-05-15	L8	250	-20	-40	80	70	0	0	1	2	2	1	18	43	7	51	12	5	3	0
ICCAT-L8	1978-08-15	L8	253	-40	-60	110	100	0	1	3	3	4	2	3	16	10	0	0	0	0	0
ICCAT-L8	1978-08-15	L8	252	-40	-60	100	90	0	0	1	1	1	14	18	2	3	1	3	0	0	0
ICCAT-L8	1978-08-15	L8	249	-60	-80	70	60	0	0	0	28	17	25	9	6	14	14	2	2	0	0
ICCAT-L8	1978-08-15	L8	254	-40	-60	120	110	0	1	3	5	17	30	25	7	2	0	0	0	0	0
ICCAT-L8	1978-08-15	L8	250	-20	-40	80	70	0	0	0	0	0	0	2	4	2	6	4	1	1	0
ICCAT-L8	1978-11-15	L8	246	-40	-60	40	30	0	0	1	0	0	1	2	11	7	6	2	0	0	0
ICCAT-L8	1978-11-15	L8	247	-60	-80	50	40	0	0	0	4	11	11	4	11	2	10	4	3	0	0
ICCAT-L8	1978-11-15	L8	249	-60	-80	70	60	0	1	1	13	20	61	49	3	3	0	0	0	0	0
ICCAT-L8	1978-11-15	L8	244	-20	-40	20	10	0	1	4	5	7	4	5	39	24	1	0	1	1	0
ICCAT-L8	1978-11-15	L8	250	-20	-40	80	70	0	2	7	11	6	4	0	0	0	0	0	0	0	0
ICCAT-L8	1978-11-15	L8	250	-20	-40	80	70	0	0	0	0	8	5	10	1	2	2	2	0	0	0
ICCAT-L8	1979-02-15	L8	247	-60	-80	50	40	0	0	0	0	4	13	7	19	7	25	6	7	1	0
ICCAT-L8	1979-02-15	L8	245	-60	-80	30	20	0	0	0	0	22	12	24	0	0	2	0	0	0	0
ICCAT-L8	1979-02-15	L8	250	-20	-40	80	70	0	0	0	0	2	3	17	10	19	5	3	1	0	0
ICCAT-L8	1979-02-15	L8	254	-40	-60	120	110	0	0	0	0	6	18	15	5	3	3	0	0	0	0
ICCAT-L8	1979-02-15	L8	250	-20	-40	80	70	0	0	0	0	0	1	6	8	5	8	2	0	0	0
ICCAT-L8	1979-05-15	L8	247	-60	-80	50	40	0	0	0	0	22	12	24	0	0	2	0	0	0	0
ICCAT-L8	1979-05-15	L8	245	-60	-80	30	20	0	0	0	8	6	39	52	56	42	71	24	9	3	0
ICCAT-L8	1979-05-15	L8	254	-40	-60	120	110	0	0	0	0	8	16	6	0	0	0	0	0	0	0
ICCAT-L8	1979-05-15	L8	250	-20	-40	80	70	0	0	0	0	5	3	10	2	1	2	3	1	3	0
ICCAT-L8	1979-05-15	L8	250	-20	-40	80	70	0	0	0	0	5	3	7	4	2	1	4	2	2	0
ICCAT-L8	1979-08-15	L8	249	-60	-80	70	60	0	0	0	0	2	4	0	4	0	0	0	0	0	0
ICCAT-L8	1979-08-15	L8	245	-60	-80	30	20	0	0	0	0	0	2	2	5	1	0	0	0	0	0
ICCAT-L8	1979-08-15	L8	250	-20	-40	80	70	0	0	2	4	5	3	9	5	9	9	5	5	2	1
ICCAT-L8	1979-08-15	L8	254	-40	-60	120	110	0	0	2	2	5	3	6	1	15	10	4	8	4	0
ICCAT-L8	1979-11-15	L8	247	-60	-80	50	40	0	0	0	0	0	14	25	12	13	12	8	0	0	6
ICCAT-L8	1979-11-15	L8	251	20	0	90	80	0	0	0	0	0	0	1	3	2	7	3	7	1	0
ICCAT-L8	1979-11-15	L8	250	-20	-40	80	70	0	0	0	0	0	0	0	0	23	5	5	18	9	0