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Herring (Clupea harengus) in Division 7.a North of 52°30’N (Irish Sea)	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.10393
Species: Clupea harengus
Stock code: her.27.nirs
Assessment Year:2021
Purpose:Advice
Assessment Key: 14091
Stock Key: 169122

Year	Recruitment at age (wr) 1	97.5%	2.5%	SSB	97.5%	2.5%	Catches	F at age (wr) 4 - 6	97.5%	2.5%
								Ages 4-6
	thousands			tonnes			tonnes	Year-1
1980	177017	372210	84186	15297	22990	10178	10613	0.30	0.42	0.21
1981	194853	407239	93232	13747	19927	9484	4377	0.29	0.40	0.21
1982	207109	432769	99115	13635	19908	9339	4855	0.28	0.39	0.21
1983	158103	337812	73995	14451	21103	9895	3933	0.28	0.38	0.21
1984	121540	254216	58108	15472	21791	10985	4066	0.28	0.38	0.21
1985	168552	351023	80934	15782	21468	11602	9187	0.29	0.38	0.22
1986	208147	432914	100078	18337	24898	13505	7440	0.30	0.38	0.23
1987	248699	520777	118768	16528	22906	11926	5823	0.30	0.39	0.23
1988	111302	231314	53555	19334	27363	13661	10172	0.31	0.39	0.24
1989	140505	293320	67304	14439	19984	10433	4949	0.30	0.39	0.24
1990	127899	264260	61902	13944	19085	10188	6312	0.31	0.39	0.24
1991	81634	168983	39437	9703	13254	7103	4398	0.30	0.39	0.24
1992	257816	536386	123920	10557	14409	7734	5270	0.31	0.40	0.24
1993	64602	129969	32111	10540	14436	7695	4409	0.31	0.40	0.24
1994	160011	310260	82523	12009	16457	8763	4828	0.31	0.40	0.24
1995	149194	295138	75418	11802	16426	8480	5076	0.31	0.41	0.24
1996	95035	193963	46564	9885	14007	6976	5301	0.31	0.41	0.24
1997	139525	277797	70077	9491	13713	6569	6651	0.32	0.42	0.24
1998	170587	329853	88221	10467	14691	7458	4905	0.32	0.43	0.23
1999	84204	164937	42988	9919	14266	6896	4127	0.31	0.42	0.23
2000	87641	173288	44324	9540	13462	6760	2002	0.30	0.42	0.22
2001	125492	253150	62209	7852	11599	5315	5461	0.31	0.42	0.22
2002	83283	168046	41275	7913	11545	5424	2393	0.30	0.42	0.22
2003	145656	286551	74038	6868	9801	4812	2399	0.29	0.41	0.21
2004	171271	341397	85922	9779	14332	6672	2531	0.28	0.40	0.20
2005	190613	381520	95233	12059	17939	8107	4387	0.27	0.39	0.193
2006	319656	626907	162990	12947	18714	8957	4402	0.26	0.37	0.181
2007	592437	1211418	289728	20550	29782	14179	4629	0.24	0.36	0.163
2008	298343	641055	138847	26187	38510	17807	4895	0.23	0.35	0.153
2009	365858	776036	172482	26450	39602	17666	4594	0.22	0.35	0.145
2010	416649	832047	208638	27228	40457	18325	4894	0.22	0.34	0.137
2011	283226	594775	134869	26796	39485	18184	5202	0.21	0.34	0.133
2012	289816	575413	145970	24077	36013	16097	5693	0.21	0.33	0.130
2013	162105	322053	81596	21448	32143	14312	4828	0.20	0.33	0.126
2014	357182	725175	175928	22359	32858	15215	5083	0.20	0.33	0.122
2015	348363	687708	176465	20511	29997	14024	4891	0.20	0.33	0.125
2016	192914	377994	98456	21974	32126	15030	4327	0.20	0.33	0.124
2017	181498	362629	90841	19853	28665	13749	3896	0.199	0.32	0.121
2018	399512	793894	201047	19090	28401	12831	6804	0.20	0.33	0.123
2019	339422	748789	153858	23981	35126	16372	6377	0.20	0.33	0.125
2020	470241	1769131	124991	23435	36087	15219	7927	0.20	0.33	0.125
2021	284959			27504
Average	218392	462296	103711	16280	23164	11071	5227	0.27	0.38	0.192

Fishing pressure

Stock size

2018

2019

2020

2019

2020

2021

Maximum sustainable yield

F_MSY

Appropriate

MSY B_trigger

Above trigger

Precautionary approach

F_pa,F_lim

Harvested sustainably

B_pa,B_lim

Full reproductive capacity

Management plan

F_MGT

Not applicable

B_MGT

Not applicable