Stock assessment graphs

Year	Low Recruitment	Recruitment	High Recruitment	TBiomass	Low SSB	SSB	High SSB	Landings	Catches	Low F	F	High F
1980	90497	174556	336695	36243	9473	13874	20321	10613	10613	0.1908	0.2893	0.4385
1981	104714	203414	395145	37760	9715	13924	19958	4377	4377	0.1869	0.2769	0.4102
1982	114428	222348	432053	42959	10021	14691	21538	4855	4855	0.1816	0.2637	0.383
1983	91366	183506	368563	45071	10991	16217	23927	3933	3933	0.1808	0.2577	0.3671
1984	67830	131006	253026	43783	12152	17257	24509	4066	4066	0.1903	0.2628	0.3629
1985	89174	171099	328293	46028	12237	16205	21460	9187	9187	0.2114	0.2809	0.3733
1986	110671	211928	405827	47240	14102	18574	24464	7440	7440	0.2215	0.2897	0.3788
1987	140482	273484	532408	46630	12472	16850	22765	5823	5823	0.2296	0.2981	0.3869
1988	60942	117360	226008	43391	14272	19732	27281	10172	10172	0.2406	0.3124	0.4056
1989	78515	151600	292714	40175	11060	15060	20507	4949	4949	0.2393	0.3096	0.4004
1990	67877	128927	244886	37496	10746	14357	19181	6312	6312	0.2417	0.3112	0.4006
1991	41609	78905	149633	28796	7453	9860	13044	4398	4398	0.2419	0.3092	0.3953
1992	128891	244019	461979	32177	7919	10267	13311	5270	5270	0.249	0.3164	0.4019
1993	34667	63704	117062	29912	7897	10331	13515	4409	4409	0.2507	0.3182	0.4039
1994	89715	161458	290572	30669	8804	11485	14982	4828	4828	0.255	0.3241	0.412
1995	72479	132588	242548	29466	8436	11133	14693	5076	5076	0.2579	0.3287	0.4189
1996	46370	85991	159468	24441	6675	8962	12034	5301	5301	0.2633	0.3376	0.433
1997	68798	124991	227084	23506	6087	8309	11342	6651	6651	0.2711	0.3529	0.4592
1998	93347	166875	298321	26742	7136	9477	12585	4905	4905	0.2726	0.3612	0.4787
1999	42346	77111	140416	22629	6625	9085	12458	4127	4127	0.265	0.3517	0.4666
2000	42400	78669	145960	19867	6427	8718	11825	2002	2002	0.2562	0.3404	0.4524
2001	57533	109098	206877	19932	4665	6683	9573	5461	5461	0.2586	0.353	0.4819
2002	44879	82619	152099	19206	4852	6926	9886	2393	2393	0.25	0.3472	0.4822
2003	81138	146825	265693	22629	4520	6243	8622	2399	2399	0.2425	0.344	0.4879
2004	85158	157000	289449	24612	6463	9118	12864	2531	2531	0.2275	0.3216	0.4547
2005	95645	176487	325656	27889	7664	10918	15555	4387	4387	0.2157	0.3065	0.4353
2006	167814	306202	558711	36864	8789	12150	16798	4402	4402	0.1991	0.281	0.3966
2007	273739	528607	1020772	65251	13970	19585	27456	4629	4629	0.1735	0.2452	0.3467
2008	133410	266999	534358	59101	17518	25084	35919	4895	4895	0.1602	0.2288	0.327
2009	176804	343176	666107	61636	17371	25034	36077	4594	4594	0.1486	0.2153	0.3119
2010	211814	394352	734199	63831	18647	26556	37819	4894	4894	0.1386	0.2026	0.2961
2011	127686	252206	498156	56162	19147	26849	37651	5202	5202	0.1331	0.1951	0.2859
2012	158535	291268	535131	54122	16999	24101	34170	5693	5693	0.1293	0.1898	0.2785
2013	86427	160011	296247	44312	15639	22018	30998	4828	4828	0.1213	0.1801	0.2674
2014	180798	340783	642334	56331	17130	23671	32709	5083	5083	0.1133	0.1707	0.2573
2015	205288	378890	699299	59516	15960	22093	30583	4891	4891	0.1139	0.1707	0.2559
2016	110175	208772	395607	50970	17429	24367	34067	4327	4327	0.1082	0.1648	0.2509
2017	89663	192529	413406	48630	16323	22948	32263	3896	3896	0.09987	0.1566	0.2455
2018	86352	333701	1289560	54885	14800	22020	32763	6804	6804	0.09823	0.1563	0.2486
2019		300740				23247


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:	2019
Key:	10343


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	0.286

Age and Length

Recruitment	1
F	4-6


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