ICES Marine Data

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Whiting (Merlangius merlangus) in Division 7.a (Irish Sea) (Link to advice)	Download graphs and tables(.doc) Download stock data (XML) Download standard graphs (zip) - regular size Download standard graphs (zip) - powerpoint size View on the map View source data
DOI: 10.17895/ices.data.7324
Species: Merlangius merlangus
Stock code: whg.27.7a
Assessment Year:2019
Purpose:Advice
Assessment Key: 12975
Stock Key: 169305

Year	Recruitment	97.5%	2.5%	SSB	97.5%	2.5%	Total	Discards	F	97.5%	2.5%
	Age 0						Catch		Ages 1-3
	thousands			tonnes			tonnes	tonnes	Year-1
1980	635229	1040890	229567	32900	53866	11934	16737	3314	0.38	0.62	0.138
1981	322377	589858	54896	43126	63863	22389	21331	3064	0.45	0.70	0.189
1982	284961	532960	36963	34608	52723	16492	17969	801	0.49	0.81	0.174
1983	880745	1316963	444527	21970	36818	7121	12405	1829	0.50	0.88	0.120
1984	630711	1017929	243493	14979	27065	2892	14999	3380	0.61	1.04	0.187
1985	513642	859425	167858	22720	35782	9658	18169	2644	0.74	1.22	0.27
1986	870632	1317140	424124	18159	29600	6719	12129	2066	0.58	0.98	0.182
1987	474781	796868	152694	16166	26843	5490	14270	3859	0.62	1.01	0.22
1988	488017	796462	179572	20453	31628	9278	11856	1611	0.52	0.86	0.187
1989	601264	915511	287018	16984	27181	6788	13408	2103	0.73	1.19	0.27
1990	522555	778295	266814	12677	20820	4534	10656	2444	0.62	1.00	0.25
1991	684435	908620	460251	13778	20841	6716	9946	2598	0.62	0.93	0.31
1992	230234	298762	161707	11873	16723	7023	12791	4203	1.01	1.38	0.64
1993	214824	269673	159976	9930	12876	6985	9230	2707	0.80	1.07	0.53
1994	183733	233007	134458	5730	7539	3921	7936	1173	0.83	1.11	0.54
1995	340766	419780	261753	4127	5448	2805	7044	2151	0.81	1.08	0.54
1996	203244	254379	152110	2878	3923	1833	7966	3631	0.89	1.15	0.63
1997	170729	217209	124250	3103	4018	2188	4205	1928	0.77	1.02	0.52
1998	167298	209987	124610	2572	3372	1772	3533	1304	1.08	1.43	0.72
1999	208166	260216	156116	1551	2145	956	2762	1092	0.85	1.15	0.56
2000	109119	138856	79382	1509	2066	952	2880	2118	1.12	1.46	0.78
2001	191982	240973	142992	1329	1776	882	1745	1012	0.90	1.23	0.58
2002	79962	101287	58637	1183	1629	736	1487	740	1.24	1.62	0.85
2003	120096	155113	85078	1195	1595	794	996	480	0.61	0.90	0.33
2004	95546	118915	72177	1269	1753	784	1038	905	1.70	2.3	1.12
2005	105851	134557	77144	543	821	264	397	272	0.44	0.69	0.20
2006	155056	193286	116826	1078	1534	623	1837	1773	1.52	2.1	0.97
2007	103943	130602	77283	580	886	273	1547	1512	1.19	1.59	0.80
2008	148998	185368	112628	724	1018	430	1206	1169	0.97	1.33	0.60
2009	92765	116975	68555	736	1041	430	1360	1321	1.10	1.48	0.72
2010	92709	115998	69420	821	1129	513	1184	1154	1.13	1.55	0.71
2011	151604	188864	114344	614	890	338	977	946	0.86	1.19	0.52
2012	79507	100588	58425	683	967	399	1399	1339	1.13	1.51	0.74
2013	159742	203585	115899	836	1160	512	981	948	0.65	0.93	0.37
2014	198580	244644	152516	942	1329	555	1974	1951	1.49	2.0	0.96
2015	122731	152437	93025	676	1011	341	1549	1521	0.96	1.32	0.61
2016	71365	92911	49819	965	1327	603	780	765	0.56	0.80	0.31
2017	108235	144918	71551	1146	1578	714	704	668	0.48	0.73	0.23
2018	174768	255732	93804	1077	1574	579	899	853	0.46	0.73	0.198
2019	118853			1376
Average	277744	411527	152109	8239	13030	3800	6520	1778	0.83	1.18	0.48

Fishing pressure

Stock size

2016

2017

2018

2017

2018

2019

Maximum sustainable yield

F_MSY

Above

MSY B_trigger

Below trigger

Precautionary approach

F_pa,F_lim

Harvested unsustainably

B_pa,B_lim

Reduced reproductive capacity

Management plan

F_MGT

B_MGT