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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:2025
Purpose:Advice
Assessment Key: 19524
Stock Key: 169140

Year	Recruitment (age 0)	95%	5%	SSB	95%	5%	Landings	Discards	F	95%	5%
									Ages 2-4
	Thousands			tonnes			tonnes	tonnes
1986	62269	71583	54167	3036	3369	2736	1124	284	0.43	0.50	0.37
1987	41447	47870	35885	3805	4198	3448	1688	333	0.38	0.45	0.33
1988	53100	61473	45867	4808	5316	4349	2223	363	0.46	0.53	0.40
1989	53552	61668	46505	5013	5561	4518	2629	408	0.59	0.68	0.52
1990	34064	39293	29530	4333	4854	3869	1945	409	0.47	0.54	0.41
1991	73567	85408	63368	4364	4869	3912	1682	447	0.45	0.51	0.39
1992	63407	73149	54961	4550	5124	4040	1916	437	0.63	0.71	0.56
1993	19761	22868	17077	3900	4358	3490	1384	438	0.50	0.58	0.44
1994	47480	54919	41048	3956	4364	3586	1403	517	0.52	0.59	0.45
1995	56545	64923	49247	3628	4028	3267	1652	406	0.57	0.65	0.50
1996	43112	49165	37804	2764	3117	2450	1098	368	0.50	0.57	0.44
1997	28284	32441	24660	2509	2840	2216	896	308	0.35	0.40	0.30
1998	18522	21304	16103	3622	4064	3229	1123	378	0.44	0.51	0.38
1999	29375	33878	25469	3427	3877	3030	1125	317	0.42	0.49	0.36
2000	33483	38621	29029	2789	3185	2442	1041	373	0.47	0.54	0.40
2001	29642	33816	25984	2427	2827	2084	931	290	0.56	0.65	0.48
2002	36961	42192	32378	2447	2869	2088	720	308	0.35	0.41	0.30
2003	40631	46760	35306	2831	3260	2459	876	191	0.31	0.36	0.26
2004	37037	42579	32217	2927	3343	2563	1006	348	0.40	0.46	0.34
2005	61565	70692	53616	2973	3378	2617	983	375	0.36	0.43	0.31
2006	52495	60316	45688	3596	4123	3136	1092	335	0.37	0.44	0.32
2007	37799	43455	32880	3587	4128	3117	1104	292	0.36	0.43	0.30
2008	28135	32407	24426	4527	5277	3883	980	202	0.24	0.29	0.200
2009	58103	66846	50504	5026	5913	4271	1134	279	0.29	0.34	0.24
2010	41471	47555	36165	5370	6389	4513	1297	265	0.26	0.31	0.22
2011	45827	52796	39778	4843	5829	4025	1128	269	0.27	0.33	0.23
2012	57443	67039	49221	5202	6213	4355	952	369	0.23	0.28	0.195
2013	46382	54961	39142	5267	6340	4376	931	496	0.28	0.34	0.24
2014	76832	92028	64145	5572	6751	4599	1154	788	0.30	0.36	0.25
2015	56690	68001	47260	5579	6860	4537	1148	597	0.31	0.38	0.26
2016	75931	91392	63086	6059	7520	4881	1087	332	0.198	0.25	0.158
2017	51641	61980	43026	6604	8272	5273	927	246	0.172	0.22	0.137
2018	60151	72346	50012	7609	9609	6025	814	92	0.106	0.134	0.083
2019	54031	65463	44595	9658	12252	7614	742	201	0.112	0.140	0.089
2020	64438	79453	52260	10707	13535	8470	711	81	0.080	0.100	0.064
2021	41781	54090	32274	12703	16042	10058	722	109	0.081	0.101	0.066
2022	38100	56460	25711	14095	17619	11275	644	119	0.075	0.092	0.060
2023	33837	60017	19077	15609	19423	12544	707	79	0.066	0.082	0.053
2024	23044	53658	9897	17397	21643	13984	685	51	0.066	0.083	0.052
2025	44049			15943
Average	46300	55766	38958	5877	6732	4701	1164	321	0.33	0.39	0.29

Fishing pressure

Stock size

2022

2023

2024

2023

2024

2025

Maximum sustainable yield

F_MSY

Appropriate

MSY B_trigger

Above trigger

Precautionary approach

F_pa,F_lim

Harvested sustainably

B_pa,B_lim

Full reproductive capacity

Management plan

F_MGT

Not applicable

B_MGT

Not applicable