ICES Marine Data

Stock Assessment Graphs

	Stock assessment graphs > View list of published graphs and tables > View published graphs and tables

Megrim (Lepidorhombus spp.) in divisions 4.a and 6.a (northern North Sea, West of Scotland) (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: Lepidorhombus
Stock code: lez.27.4a6a
Assessment Year:2022
Purpose:Advice
Assessment Key: 17324
Stock Key: 169138

Year	B/Bmsy	97.5%	2.5%	Landings	Discards	F/Fmsy	97.5%	2.5%

	tonnes			tonnes	tonnes	ratio
1985	2.327	3.536	1.199	4499	1928	0.68	1.16	0.38
1986	1.637	2.246	1.078	2858	1193	0.53	0.77	0.33
1987	1.543	2.046	1.069	4614	1874	0.93	1.31	0.58
1988	1.429	2.038	1.017	5212	2061	1.15	1.66	0.65
1989	1.151	1.564	0.802	3451	1327	0.88	1.27	0.50
1990	1.054	1.433	0.74	3047	1140	0.82	1.22	0.47
1991	0.991	1.304	0.703	3310	1204	0.95	1.40	0.59
1992	1.043	1.385	0.717	3574	1263	0.98	1.46	0.58
1993	1.115	1.51	0.786	3802	1305	0.97	1.42	0.57
1994	1.206	1.705	0.813	3900	1300	0.93	1.32	0.53
1995	1.236	1.748	0.862	4670	1511	1.10	1.57	0.59
1996	1.192	1.709	0.821	5253	1649	1.31	1.91	0.68
1997	1.004	1.374	0.719	4856	1478	1.40	2.0	0.78
1998	0.954	1.365	0.663	4253	1254	1.26	1.86	0.67
1999	0.918	1.359	0.623	3759	1074	1.13	1.70	0.59
2000	0.864	1.238	0.57	3494	966	1.10	1.64	0.56
2001	0.802	1.111	0.554	3571	956	1.20	1.80	0.65
2002	0.821	1.18	0.548	2803	725	0.88	1.32	0.47
2003	0.856	1.215	0.582	2369	592	0.70	1.06	0.37
2004	0.871	1.224	0.587	2067	499	0.58	0.88	0.32
2005	0.885	1.164	0.63	1527	356	0.41	0.61	0.24
2006	1.005	1.314	0.718	2054	461	0.49	0.73	0.30
2007	1.151	1.474	0.821	2348	508	0.50	0.73	0.31
2008	1.282	1.665	0.912	2894	602	0.56	0.83	0.34
2009	1.397	1.842	1.006	2871	574	0.51	0.72	0.30
2010	1.413	1.845	1.03	3197	614	0.56	0.84	0.36
2011	1.454	1.907	1.026	2743	526	0.47	0.68	0.29
2012	1.585	2.076	1.156	2545	449	0.42	0.60	0.26
2013	1.775	2.429	1.271	2737	327	0.37	0.53	0.22
2014	1.794	2.364	1.329	2500	309	0.33	0.48	0.20
2015	1.667	2.171	1.205	2340	159	0.31	0.44	0.21
2016	1.748	2.26	1.282	2792	167	0.36	0.51	0.23
2017	1.882	2.625	1.373	2594	193	0.32	0.45	0.193
2018	1.687	2.165	1.249	3003	255	0.41	0.56	0.26
2019	1.55	1.965	1.117	3197	184	0.45	0.65	0.29
2020	1.565	2.072	1.131	3315	214	0.47	0.68	0.30
2021	1.534	1.99	1.139	3603	200	0.52	0.74	0.34
2022	1.443	2.007	0.955
Average	1.311	1.78	0.916	3287	849	0.73	1.07	0.42

Fishing pressure

Stock size

2019

2020

2021

2020

2021

2022

Maximum sustainable yield

F_MSY

Below

MSY B_trigger

Above trigger

Precautionary approach

F_pa,F_lim

Below possible reference points

B_pa,B_lim

Full reproductive capacity

Management plan

F_MGT

Not applicable

B_MGT

Not applicable