Stock assessment graphs

Year	Low Recruitment	Recruitment	High Recruitment	TBiomass	Low SSB	SSB	High SSB	Landings	Catches	Low F	F	High F
1980	84186	177017	372210	38638	10178	15297	22990	10613	10613	0.2097	0.2957	0.4171
1981	93232	194853	407239	36901	9484	13747	19927	4377	4377	0.2084	0.2902	0.4042
1982	99115	207109	432769	40135	9339	13635	19908	4855	4855	0.2064	0.2844	0.3918
1983	73995	158103	337812	40255	9895	14451	21103	3933	3933	0.2068	0.2818	0.3839
1984	58108	121540	254216	40015	10985	15472	21791	4066	4066	0.212	0.284	0.3805
1985	80934	168552	351023	45207	11602	15782	21468	9187	9187	0.2224	0.2919	0.3832
1986	100078	208147	432914	46817	13505	18337	24898	7440	7440	0.2272	0.2956	0.3846
1987	118768	248699	520777	44802	11926	16528	22906	5823	5823	0.2311	0.2992	0.3873
1988	53555	111302	231314	42362	13661	19334	27363	10172	10172	0.2362	0.3053	0.3947
1989	67304	140505	293320	38177	10433	14439	19984	4949	4949	0.2359	0.3045	0.3931
1990	61902	127899	264260	36644	10188	13944	19085	6312	6312	0.237	0.3056	0.394
1991	39437	81634	168983	28595	7103	9703	13254	4398	4398	0.2368	0.3049	0.3927
1992	123920	257816	536386	33323	7734	10557	14409	5270	5270	0.2387	0.3076	0.3964
1993	32111	64602	129969	30333	7695	10540	14436	4409	4409	0.238	0.3077	0.3978
1994	82523	160011	310260	31288	8763	12009	16457	4828	4828	0.2381	0.3093	0.4019
1995	75418	149194	295138	31445	8480	11802	16426	5076	5076	0.2373	0.3103	0.4057
1996	46564	95035	193963	26476	6976	9885	14007	5301	5301	0.2371	0.3127	0.4124
1997	70077	139525	277797	26056	6569	9491	13713	6651	6651	0.2372	0.3172	0.4241
1998	88221	170587	329853	28226	7458	10467	14691	4905	4905	0.2349	0.3181	0.4307
1999	42988	84204	164937	24125	6896	9919	14266	4127	4127	0.2294	0.3118	0.4238
2000	44324	87641	173288	21455	6760	9540	13462	2002	2002	0.2231	0.3046	0.4158
2001	62209	125492	253150	22720	5315	7852	11599	5461	5461	0.2212	0.3058	0.4228
2002	41275	83283	168046	20622	5424	7913	11545	2393	2393	0.2151	0.2995	0.4172
2003	74038	145656	286551	23389	4812	6868	9801	2399	2399	0.2098	0.2944	0.4133
2004	85922	171271	341397	26291	6672	9779	14332	2531	2531	0.2004	0.2824	0.3981
2005	95233	190613	381520	30212	8107	12059	17939	4387	4387	0.1925	0.273	0.3872
2006	162990	319656	626907	38677	8957	12947	18714	4402	4402	0.1811	0.2597	0.3724
2007	289728	592437	1211418	70686	14179	20550	29782	4629	4629	0.1633	0.2417	0.3579
2008	138847	298343	641055	62944	17807	26187	38510	4895	4895	0.1531	0.2317	0.3507
2009	172482	365858	776036	65513	17666	26450	39602	4594	4594	0.1447	0.2236	0.3454
2010	208638	416649	832047	66370	18325	27228	40457	4894	4894	0.1368	0.2158	0.3403
2011	134869	283226	594775	58047	18184	26796	39485	5202	5202	0.1327	0.2112	0.336
2012	145970	289816	575413	54339	16097	24077	36013	5693	5693	0.1303	0.2082	0.3326
2013	81596	162105	322053	44002	14312	21448	32143	4828	4828	0.1258	0.2037	0.3301
2014	175928	357182	725175	55882	15215	22359	32858	5083	5083	0.122	0.2001	0.3282
2015	176465	348363	687708	55603	14024	20511	29997	4891	4891	0.1247	0.2017	0.3262
2016	98456	192914	377994	47005	15030	21974	32126	4327	4327	0.1237	0.2006	0.3252
2017	90841	181498	362629	43871	13749	19853	28665	3896	3896	0.1214	0.1986	0.3249
2018	201047	399512	793894	55105	12831	19090	28401	6804	6804	0.1233	0.2003	0.3253
2019	153858	339422	748789	55715	16372	23981	35126	6377	6377	0.1248	0.2021	0.3272
2020	124991	470241	1769131	65578	15219	23435	36087	7927	7927	0.1246	0.2027	0.3299
2021		284959				27504


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


Unit weights	tonnes
Unit recruitment	thousands
Fishing pressure description	F
Fishing pressure units	Year-1
Stock size description	SSB
Stock size units	tonnes


Fish reference points

Management plan	SSB_MP
Management plan	F_MP
MSY approach	MSYB_trigger	11831
MSY approach	F_MSY	0.266
Precautionary approach	B_lim	8500
	B_pa	11831
	F_lim	0.397
	F_pa	0.309

Age and Length

Recruitment	1
F	4-6


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