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Herring (Clupea harengus) in Division 7.a North of 52°30’N (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

Species: Clupea harengus
Stock code: her.27.nirs
Assessment Component:
Assessment Year:2025
Purpose:Advice
Assessment Key: 19783
Stock Key: 169122

Year	Recruitment at age (wr) 1	97.5%	2.5%	SSB	97.5%	2.5%	Catches	F at ages (wr) 2-4	97.5%	2.5%

	thousands			tonnes			tonnes	ratio
1980	216277	337830	138460	11919	16854	8429	10613	0.61	0.84	0.44
1981	246896	373843	163056	14357	20542	10035	4377	0.28	0.41	0.194
1982	260660	398300	170584	18861	27048	13152	4855	0.182	0.27	0.124
1983	227224	335234	154015	24562	34425	17525	3933	0.114	0.164	0.079
1984	185451	270437	127172	26844	36362	19818	4066	0.116	0.162	0.083
1985	190081	273419	132144	22048	29434	16516	9187	0.24	0.33	0.180
1986	193637	280033	133896	22159	29078	16887	7440	0.23	0.31	0.171
1987	182317	265671	125115	19372	25374	14789	5823	0.21	0.27	0.155
1988	139808	202029	96749	17353	23050	13064	10172	0.36	0.47	0.27
1989	137805	197843	95986	14791	19563	11183	4949	0.23	0.31	0.171
1990	126444	181074	88296	13849	18247	10511	6312	0.28	0.37	0.21
1991	112577	163313	77603	10020	13154	7633	4398	0.24	0.31	0.176
1992	135159	194975	93694	9223	11832	7189	5270	0.29	0.39	0.22
1993	107347	155339	74182	9339	12019	7256	4409	0.26	0.34	0.195
1994	131105	185534	92644	10315	13116	8112	4828	0.32	0.42	0.25
1995	131704	185814	93351	9875	12539	7777	5076	0.34	0.44	0.26
1996	116833	163486	83494	8192	10416	6443	5301	0.36	0.47	0.28
1997	113484	158077	81470	7114	9060	5586	6651	0.52	0.66	0.41
1998	115751	164687	81356	6874	8709	5426	4905	0.50	0.64	0.39
1999	88140	125105	62097	6694	8680	5162	4127	0.39	0.51	0.30
2000	79059	112972	55326	8025	10218	6302	2002	0.21	0.28	0.156
2001	78974	112490	55444	4863	6246	3785	5461	0.55	0.71	0.43
2002	78548	113960	54140	4744	6116	3680	2393	0.35	0.46	0.26
2003	96755	136413	68626	4281	5498	3333	2399	0.38	0.51	0.28
2004	117285	163848	83954	6327	8155	4909	2531	0.33	0.43	0.25
2005	139825	195511	100000	7067	9041	5524	4387	0.46	0.59	0.36
2006	185789	264535	130483	6961	8999	5384	4402	0.49	0.63	0.37
2007	222380	325198	152070	10593	13805	8128	4629	0.28	0.38	0.21
2008	197790	283598	137944	12341	16177	9414	4895	0.30	0.39	0.22
2009	210678	300409	147749	12640	16198	9864	4594	0.30	0.49	0.184
2010	202453	286063	143281	14309	18286	11197	4894	0.27	0.35	0.20
2011	171649	245620	119956	13585	17202	10729	5202	0.29	0.37	0.22
2012	172340	243017	122218	10982	13995	8617	5693	0.35	0.45	0.27
2013	146493	214440	100075	10482	13602	8078	4828	0.31	0.41	0.23
2014	165649	231899	118326	11635	14793	9151	5083	0.26	0.34	0.193
2015	178466	249776	127515	8594	10856	6804	4891	0.40	0.52	0.31
2016	156279	220246	110889	8807	11273	6881	4327	0.37	0.48	0.28
2017	166432	233632	118560	9345	11792	7406	3896	0.34	0.44	0.27
2018	202744	280805	146383	7964	10043	6315	6804	0.48	0.61	0.38
2019	223135	309416	160914	8899	11133	7113	6377	0.52	0.65	0.42
2020	276430	402573	189813	7007	9032	5436	7927	0.67	0.84	0.54
2021	240670	343429	168658	14545	18923	11181	7208	0.36	0.46	0.28
2022	274797	419431	180038	10926	14441	8266	7888	0.46	0.60	0.36
2023	199517	327299	121623	10697	15381	7440	7470	0.42	0.59	0.31
2024	173916	345829	87462	10249	18205	5770	7386	0.51	0.83	0.31
2025	198118			9358
Average	167715	243877	114818	11500	15309	8738	5428	0.35	0.46	0.26

Fishing pressure

Stock size

2022

2023

2024

2023

2024

2025

Maximum sustainable yield

F_MSY

Above

MSY B_trigger

Below trigger

Precautionary approach

F_pa,F_lim

Harvested unsustainably

B_pa,B_lim

Increased risk

Management plan

F_MGT

Not applicable

B_MGT

Not applicable