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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
DOI: 10.17895/ices.data.7284
Species: Lepidorhombus
Stock code: lez.27.4a6a
Assessment Year:2019
Purpose:Advice
Assessment Key: 12855
Stock Key: 169138

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

	ratio			tonnes	tonnes	ratio
1985	2.229	3.718	0.932	4499		0.71	1.39	0.35
1986	1.591	2.24	0.87	2858		0.54	0.92	0.30
1987	1.495	2.084	0.88	4614		0.95	1.58	0.53
1988	1.407	2.111	0.813	5212		1.17	1.91	0.59
1989	1.129	1.613	0.675	3451		0.89	1.42	0.46
1990	1.032	1.446	0.656	3047		0.83	1.31	0.44
1991	0.97	1.323	0.626	3310		0.96	1.47	0.53
1992	1.024	1.421	0.62	3574		0.99	1.57	0.54
1993	1.102	1.554	0.67	3802		0.98	1.54	0.52
1994	1.209	1.764	0.715	3900		0.92	1.50	0.45
1995	1.231	1.828	0.721	4670		1.10	1.77	0.52
1996	1.193	1.9	0.685	5253		1.31	2.1	0.60
1997	1.001	1.425	0.609	4856		1.39	2.2	0.65
1998	0.956	1.403	0.571	4253		1.26	2.0	0.59
1999	0.926	1.456	0.546	3759		1.12	1.80	0.49
2000	0.862	1.305	0.52	3494		1.10	1.76	0.50
2001	0.792	1.141	0.482	3571		1.21	1.98	0.60
2002	0.812	1.202	0.471	2803		0.89	1.44	0.41
2003	0.845	1.273	0.489	2369		0.71	1.18	0.33
2004	0.85	1.244	0.495	2067		0.60	0.97	0.29
2005	0.844	1.147	0.529	1527		0.43	0.68	0.23
2006	0.961	1.29	0.577	2054		0.51	0.82	0.28
2007	1.1	1.515	0.663	2348		0.52	0.81	0.29
2008	1.222	1.698	0.718	2894		0.58	0.94	0.32
2009	1.339	1.861	0.822	2871		0.53	0.83	0.29
2010	1.353	1.827	0.859	3197		0.58	0.91	0.33
2011	1.392	1.917	0.872	3257		0.57	0.88	0.33
2012	1.506	2.118	0.954	2545		0.44	0.67	0.24
2013	1.719	2.507	1.034	2737	327	0.38	0.59	0.21
2014	1.717	2.426	1.07	2500	309	0.34	0.53	0.190
2015	1.593	2.124	1.006	2471	152	0.34	0.51	0.21
2016	1.684	2.245	1.123	2792	167	0.36	0.54	0.22
2017	1.853	2.624	1.211	2594	193	0.32	0.48	0.175
2018	1.681	2.198	1.154	3003	255	0.40	0.59	0.24
Average	1.254	1.793	0.754	3299	234	0.76	1.22	0.39

Fishing pressure

Stock size

2016

2017

2018

2016

2017

2018

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 range

B_MGT

Above trigger