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 Division 6.b (Rockall)	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.27.6b
Assessment Component:
Assessment Year:2025
Purpose:Advice
Assessment Key: 21206
Stock Key: 169139

Year	Relative Biomass	97.5%	2.5%	Landings	Discards	Relative fishing pressure	97.5%	2.5%

				tonnes	tonnes	ratio
1991	1.15	2.63	0.5	1045	209	1.24	2.2	0.69
1992	1.07	2.28	0.5	1073	215	1.35	2.3	0.81
1993	0.99	2	0.49	925	185	1.31	2.1	0.82
1994	0.94	1.82	0.49	1046	209	1.45	2.2	0.94
1995	0.87	1.62	0.47	816	163	1.39	2.1	0.93
1996	0.84	1.51	0.47	843	169	1.29	1.90	0.87
1997	0.81	1.41	0.47	1009	202	1.54	2.2	1.07
1998	0.74	1.24	0.45	1091	218	1.99	2.8	1.42
1999	0.64	1.03	0.4	866	173	1.97	2.7	1.43
2000	0.57	0.89	0.37	964	193	2.2	2.9	1.58
2001	0.48	0.72	0.32	824	165	2.6	3.6	1.94
2002	0.4	0.57	0.28	455	91	1.79	2.5	1.29
2003	0.4	0.56	0.29	632	126	1.82	2.5	1.31
2004	0.37	0.49	0.28	528	106	2.2	3.2	1.49
2005	0.34	0.46	0.25	382	87	1.70	2.7	1.06
2006	0.35	0.5	0.25	344	75	1.36	2.4	0.78
2007	0.38	0.57	0.25	106	22	1.11	2.1	0.57
2008	0.43	0.69	0.27	294	59	0.93	1.92	0.45
2009	0.49	0.83	0.29	226	44	0.70	1.52	0.32
2010	0.58	0.99	0.34	139	26	0.37	0.83	0.168
2011	0.7	1.18	0.41	155	7	0.24	0.54	0.109
2012	0.85	1.42	0.51	224	21	0.27	0.56	0.125
2013	1	1.64	0.62	278	15	0.31	0.63	0.147
2014	1.14	1.79	0.72	343	15	0.31	0.64	0.153
2015	1.25	1.91	0.82	453	85	0.41	0.80	0.21
2016	1.32	1.96	0.9	405	145	0.45	0.88	0.23
2017	1.38	1.98	0.96	586	233	0.55	1.07	0.29
2018	1.39	1.98	0.97	764	203	0.76	1.45	0.40
2019	1.35	1.93	0.95	783	34	0.71	1.40	0.36
2020	1.35	1.93	0.94	861	59	0.74	1.47	0.37
2021	1.33	1.9	0.93	566	65	0.63	1.27	0.32
2022	1.35	1.89	0.96	402	18	0.39	0.78	0.196
2023	1.42	1.93	1.04	439	12	0.33	0.64	0.170
2024	1.48	1.97	1.12	563	8	0.40	0.75	0.21
2025	1.51	1.96	1.16
Average	0.9	1.43	0.58	601	108	1.08	1.75	0.68

Fishing pressure

Stock size

2022

2023

2024

2023

2024

2025

Maximum sustainable yield

F_MSY

Below

MSY B_trigger

Above trigger

Precautionary approach

F_pa,F_lim

Undefined

B_pa,B_lim

Full reproductive capacity

Management plan

F_MGT

Not applicable

B_MGT

Not applicable