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Spotted ray (Raja montagui) in Subarea 4 and in divisions 3.a and 7.d (North Sea, Skagerrak, Kattegat, eastern English Channel) (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: Raja montagui
Stock code: rjm.27.3a47d
Assessment Component:
Assessment Year:2023
Purpose:Advice
Assessment Key: 18340
Stock Key: 169218

Year	Relative biomass	97.5%	2.5%	Landings	Discards	Relative fishing pressure	97.5%	2.5%	Index 1	Index 2

	Kilograms per hour			tonnes	tonnes	ratio			kg/h
1989	0.724	1.196	0.438			0.98	1.99	0.48	114.302
1990	0.782	1.129	0.541			0.99	1.82	0.54	143.498
1991	0.831	1.126	0.613			1.03	1.73	0.61	136.248
1992	0.872	1.156	0.657			1.11	1.78	0.70	190.068	344.378
1993	0.871	1.153	0.659			1.27	1.94	0.83	129.519	274.548
1994	0.829	1.102	0.624			1.45	2.2	0.98	107.203	150.621
1995	0.764	1.019	0.573			1.67	2.4	1.16	188.084	162.227
1996	0.668	0.89	0.501			1.89	2.7	1.33	109.693	191.039
1997	0.567	0.748	0.43			2.0	2.9	1.44	86.827	189.077
1998	0.478	0.623	0.367			2.00	2.8	1.41	81.089	73.556
1999	0.425	0.551	0.328	311	409	1.71	2.3	1.27	102.142	90.016
2000	0.412	0.533	0.319	367	483	1.56	2.1	1.18	52.497	43.079
2001	0.417	0.537	0.325	389	512	1.53	2.0	1.15	60.786	42.08
2002	0.433	0.552	0.34	391	514	1.50	2.0	1.12	93.118	97.608
2003	0.45	0.572	0.354	390	512	1.46	2.00	1.07	119.821	42.629
2004	0.462	0.591	0.362	359	471	1.35	1.89	0.96	102.195	98.008
2005	0.49	0.631	0.38	301	396	1.14	1.64	0.79	85.312	83.517
2006	0.546	0.708	0.421	293	386	0.93	1.37	0.64	52.729	142.703
2007	0.65	0.841	0.502	314	413	0.80	1.19	0.54	152.208	120.875
2008	0.766	0.992	0.592	302	397	0.68	1.02	0.45	210.297	148.1
2009	0.883	1.14	0.684	291	298	0.54	0.83	0.36	135.12	223.152
2010	1.034	1.325	0.807	297	303	0.44	0.68	0.29	228.194	186.182
2011	1.187	1.501	0.938	260	314	0.37	0.55	0.25	183.756	342.978
2012	1.37	1.71	1.098	298	315	0.34	0.49	0.23	358.929	373.543
2013	1.475	1.808	1.204	289	285	0.30	0.44	0.21	242.247	352.131
2014	1.566	1.893	1.296	213	318	0.27	0.39	0.185	328.202	445.303
2015	1.628	1.943	1.363	226	292	0.25	0.36	0.173	358.211	287.498
2016	1.654	1.955	1.399	224	389	0.27	0.38	0.185	282.538	433.598
2017	1.702	1.996	1.451	260	552	0.33	0.46	0.23	298.694	385.206
2018	1.709	2.004	1.457	356	554	0.39	0.55	0.27	349.054	322.245
2019	1.658	1.939	1.418	339	414	0.37	0.53	0.26	316.62	506.461
2020	1.616	1.894	1.379	257	425	0.34	0.49	0.24	291.347	229.756
2021	1.584	1.869	1.342	275	576	0.37	0.54	0.26	221.934	253.777
2022	1.583	1.868	1.342	239	402	0.34	0.50	0.24	343.332	354.827
2023	1.608	1.9	1.36
Average	0.991	1.24	0.796	302	414	0.94	1.38	0.65	183.995	225.507

Fishing pressure

Stock size

2020

2021

2022

2021

2022

2023

Maximum sustainable yield

F_MSY

Appropriate

MSY B_trigger

Above trigger

Precautionary approach

F_pa,F_lim

Below ref.

B_pa,B_lim

Full reproductive capacity

Management plan

F_MGT

Not applicable

B_MGT

Not applicable