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Megrim (Lepidorhombus spp.) in divisions 4.a and 6.a (northern North Sea, West of Scotland)	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.10191
Species: Lepidorhombus
Stock code: lez.27.4a6a
Assessment Year:2020
Purpose:Advice
Assessment Key: 13757
Stock Key: 169138

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

				tonnes	tonnes	ratio
1985	2.365	3.71	1.111	4499	1928	0.66	1.24	0.36
1986	1.658	2.314	0.982	2858	1193	0.52	0.87	0.31
1987	1.547	2.077	0.98	4614	1874	0.92	1.47	0.52
1988	1.463	2.169	0.925	5212	2061	1.12	1.77	0.58
1989	1.172	1.601	0.752	3451	1327	0.86	1.39	0.48
1990	1.065	1.48	0.678	3047	1140	0.81	1.32	0.44
1991	0.997	1.358	0.637	3310	1204	0.94	1.57	0.55
1992	1.061	1.421	0.682	3574	1263	0.95	1.58	0.53
1993	1.137	1.578	0.729	3802	1305	0.95	1.51	0.52
1994	1.257	1.843	0.777	3900	1300	0.89	1.42	0.47
1995	1.293	1.856	0.799	4670	1511	1.05	1.65	0.55
1996	1.253	1.869	0.797	5253	1649	1.24	1.92	0.61
1997	1.041	1.46	0.676	4856	1478	1.34	2.1	0.70
1998	0.999	1.43	0.635	4253	1254	1.19	1.89	0.61
1999	0.971	1.436	0.595	3759	1074	1.07	1.73	0.52
2000	0.909	1.332	0.558	3494	966	1.04	1.70	0.51
2001	0.834	1.199	0.524	3571	956	1.15	1.90	0.59
2002	0.852	1.235	0.521	2803	725	0.85	1.37	0.43
2003	0.889	1.321	0.534	2369	592	0.67	1.15	0.33
2004	0.884	1.265	0.571	2067	499	0.57	0.95	0.29
2005	0.882	1.177	0.572	1527	356	0.41	0.69	0.23
2006	1.004	1.351	0.659	2054	461	0.49	0.81	0.29
2007	1.15	1.552	0.731	2348	508	0.50	0.85	0.28
2008	1.278	1.707	0.805	2894	602	0.56	0.94	0.32
2009	1.398	1.854	0.903	2871	574	0.51	0.82	0.29
2010	1.412	1.844	0.932	3197	614	0.56	0.92	0.34
2011	1.448	1.895	0.998	3257	600	0.55	0.86	0.34
2012	1.579	2.129	1.072	2545	449	0.42	0.65	0.25
2013	1.779	2.539	1.196	2737	327	0.36	0.58	0.21
2014	1.806	2.543	1.234	2500	309	0.33	0.53	0.196
2015	1.649	2.164	1.113	2471	152	0.33	0.50	0.20
2016	1.749	2.3	1.181	2792	167	0.35	0.56	0.22
2017	1.902	2.669	1.258	2594	193	0.31	0.49	0.182
2018	1.687	2.266	1.175	3003	255	0.40	0.61	0.24
2019	1.545	2.024	1.05	3197	184	0.45	0.71	0.28
2020	1.458	2.074	0.905
Average	1.316	1.835	0.84	3296	887	0.72	1.17	0.39

Fishing pressure

Stock size

2017

2018

2019

2018

2019

2020

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

Below the range

B_MGT

Above trigger