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Four-spot megrim (Lepidorhombus boscii) in divisions 8.c and 9.a (southern Bay of Biscay and Atlantic Iberian waters East) (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 boscii
Stock code: ldb.27.8c9a
Assessment Component:
Assessment Year:2026
Purpose:Advice
Assessment Key: 26018
Stock Key: 169140

Year	Recruitment (age 0)	95%	5%	SSB	95%	5%	Landings	Discards	F	95%	5%
									Ages 2-4
	Number of individuals (fisheries)			tonnes			tonnes	tonnes
1986	69390	84487	56992	2884	3183	2613	1124	284	0.41	0.49	0.35
1987	48724	59061	40197	3660	4015	3336	1688	333	0.44	0.49	0.39
1988	60854	72839	50841	4358	4773	3979	2223	363	0.48	0.54	0.42
1989	59136	70471	49624	4523	4965	4119	2629	408	0.53	0.59	0.48
1990	33820	40064	28548	4261	4686	3875	1945	409	0.55	0.62	0.50
1991	78798	93260	66579	3994	4403	3622	1682	447	0.54	0.59	0.49
1992	66336	78613	55976	3807	4233	3423	1916	437	0.51	0.57	0.46
1993	20059	23834	16882	3815	4225	3445	1384	438	0.52	0.57	0.47
1994	49419	58257	41921	3879	4298	3501	1403	517	0.55	0.61	0.49
1995	58181	68080	49722	3450	3848	3093	1652	406	0.54	0.60	0.49
1996	44191	51617	37834	2735	3072	2435	1098	368	0.47	0.53	0.42
1997	30651	35978	26112	2572	2898	2283	896	308	0.40	0.45	0.36
1998	19062	22455	16181	3494	3919	3114	1123	378	0.40	0.45	0.36
1999	30604	38818	24128	3481	3913	3097	1125	317	0.47	0.53	0.42
2000	34348	41930	28137	2761	3135	2432	1041	373	0.53	0.59	0.47
2001	31851	37319	27184	2311	2715	1968	931	290	0.48	0.55	0.43
2002	38514	44924	33019	2565	3163	2081	720	308	0.39	0.44	0.34
2003	42564	49906	36302	2887	3565	2337	876	191	0.34	0.39	0.30
2004	37069	43420	31648	2948	3556	2444	1006	348	0.38	0.43	0.33
2005	60364	70392	51765	3098	3606	2662	983	375	0.44	0.49	0.39
2006	51465	59777	44309	3528	4064	3063	1092	335	0.42	0.48	0.37
2007	37825	44002	32515	3382	3883	2946	1104	292	0.35	0.40	0.30
2008	27788	32309	23900	4371	5041	3790	980	202	0.30	0.35	0.26
2009	59832	69381	51597	4649	5436	3976	1134	279	0.29	0.34	0.25
2010	40905	47343	35342	5049	5933	4297	1297	265	0.30	0.34	0.26
2011	42465	49274	36598	4519	5367	3804	1128	269	0.28	0.33	0.24
2012	53487	62470	45796	4958	5821	4223	952	369	0.27	0.31	0.23
2013	40447	47656	34329	4943	5858	4171	931	496	0.29	0.34	0.25
2014	67374	79633	57002	5257	6248	4423	1154	788	0.34	0.40	0.30
2015	48792	58027	41026	5092	6137	4224	1148	597	0.35	0.40	0.30
2016	62077	74144	51975	5375	6482	4457	1087	332	0.27	0.32	0.23
2017	43160	52007	35818	5532	6719	4555	927	246	0.187	0.23	0.154
2018	52546	63314	43609	6377	7757	5242	814	92	0.139	0.170	0.114
2019	48719	58863	40323	7849	9618	6406	742	201	0.115	0.142	0.094
2020	59094	72626	48084	8799	10742	7207	711	81	0.098	0.120	0.080
2021	50679	64585	39767	10414	12756	8502	722	109	0.083	0.102	0.068
2022	69081	93474	51054	11883	14445	9776	644	119	0.074	0.090	0.061
2023	36804	55570	24375	13690	16571	11310	707	79	0.067	0.083	0.055
2024	28248	49437	16141	16175	19537	13392	685	51	0.059	0.074	0.047
2025	9221	21219	4007	17817	21468	14787	689	36	0.049	0.065	0.037
2026	21243			17559
Average	45492	56021	38179	5724	6401	4610	1152	313	0.34	0.39	0.30

Fishing pressure

Stock size

2023

2024

2025

2024

2025

2026

Maximum sustainable yield

F_MSY

Appropriate

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