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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:2026
Purpose:Advice
Assessment Key: 21319
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	214335	336722	136431	11894	16811	8416	10613	0.61	0.85	0.45
1981	249483	379247	164120	14363	20517	10054	4377	0.28	0.41	0.195
1982	266224	407808	173796	18954	27116	13249	4855	0.181	0.27	0.124
1983	228987	340021	154211	24729	34566	17692	3933	0.113	0.163	0.079
1984	182838	269008	124270	26957	36426	19949	4066	0.115	0.161	0.083
1985	190087	275653	131082	22048	29405	16531	9187	0.24	0.33	0.180
1986	195856	285268	134469	22182	29062	16931	7440	0.23	0.31	0.172
1987	185036	272089	125836	19413	25371	14854	5823	0.21	0.27	0.154
1988	138065	201250	94718	17401	23051	13136	10172	0.36	0.47	0.27
1989	137936	200072	95097	14800	19522	11220	4949	0.23	0.31	0.171
1990	126151	182256	87317	13855	18214	10540	6312	0.28	0.37	0.21
1991	110773	161856	75812	10021	13123	7653	4398	0.23	0.31	0.176
1992	137773	201014	94428	9247	11842	7221	5270	0.29	0.38	0.22
1993	105466	153849	72298	9376	12049	7296	4409	0.26	0.34	0.195
1994	133055	189686	93332	10364	13157	8163	4828	0.32	0.42	0.25
1995	134290	190628	94601	9964	12629	7861	5076	0.34	0.44	0.26
1996	117219	165406	83070	8274	10495	6523	5301	0.36	0.46	0.28
1997	114280	160310	81467	7182	9124	5654	6651	0.52	0.65	0.41
1998	118351	169642	82568	6952	8796	5494	4905	0.49	0.63	0.38
1999	87517	125101	61224	6749	8740	5212	4127	0.39	0.50	0.30
2000	77935	111693	54380	8045	10225	6329	2002	0.21	0.28	0.156
2001	78238	111743	54779	4851	6218	3785	5461	0.56	0.71	0.43
2002	77165	111957	53184	4727	6080	3675	2393	0.35	0.46	0.26
2003	96467	137055	67900	4266	5467	3329	2399	0.38	0.51	0.28
2004	117682	165676	83591	6336	8156	4922	2531	0.33	0.43	0.25
2005	140289	197877	99460	7096	9074	5549	4387	0.46	0.59	0.36
2006	190663	272736	133288	7039	9102	5444	4402	0.48	0.63	0.37
2007	231193	338064	158107	10804	14086	8286	4629	0.28	0.37	0.21
2008	199784	290250	137515	12588	16500	9604	4895	0.29	0.39	0.22
2009	214422	307948	149300	12763	16358	9957	4594	0.30	0.50	0.185
2010	205473	292403	144387	14412	18439	11265	4894	0.26	0.35	0.20
2011	171315	248211	118241	13681	17337	10796	5202	0.29	0.37	0.22
2012	173469	246826	121914	11008	14048	8627	5693	0.35	0.45	0.27
2013	144393	213463	97672	10467	13620	8043	4828	0.31	0.41	0.23
2014	166529	235192	117911	11671	14876	9156	5083	0.25	0.34	0.192
2015	181174	255751	128344	8606	10877	6810	4891	0.40	0.52	0.31
2016	155357	220307	109555	8815	11279	6889	4327	0.37	0.48	0.28
2017	166438	235214	117772	9405	11862	7457	3896	0.34	0.44	0.27
2018	207325	289246	148606	8045	10140	6383	6804	0.48	0.60	0.38
2019	229853	320862	164658	9099	11373	7279	6377	0.51	0.64	0.41
2020	297542	434000	203988	7302	9406	5669	7927	0.65	0.82	0.52
2021	257988	368501	180619	15596	20191	12047	7208	0.34	0.44	0.26
2022	309719	473007	202800	12113	15753	9314	7888	0.43	0.55	0.33
2023	215331	336983	137596	12540	17157	9166	7470	0.37	0.49	0.28
2024	160545	288738	89267	13038	20301	8373	7386	0.39	0.59	0.27
2025	157581	332030	74788	11298	21190	6024	5359	0.34	0.60	0.194
2026	212789	309719	155357	10744	20950	5126
Average	170434	251326	116279	11725	15746	8786	5426	0.34	0.46	0.26

Fishing pressure

Stock size

2023

2024

2025

2024

2025

2026

Maximum sustainable yield

F_MSY

Above

MSY B_trigger

Below trigger

Precautionary approach

F_pa,F_lim

Undefined

B_pa,B_lim

Increased risk

Management plan

F_MGT

Not applicable

B_MGT

Not applicable