Advice and Scenarios Database



Megrim (Lepidorhombus spp.) in divisions 4.a and 6.a (northern North Sea, West of Scotland)
StockCode
lez.27.4a6a
Assessment Year
2024
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
18941
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.25019324.v1






Catch scenarios


Basis
Total catch
Projected landings
Projected discards
Fishing mortality F/Fmsy
Stock size B/Bmsy
% B change*
% advice change^
2025 2025 2025 2025 2026 2026 2025
(t) (t) (t) (ratio) (ratio) (%) (%)
ICES Basis Advice
MSY approach: F= FMSY 7550 7214 336 1 1.35 -19.1 -4.4
Other scenarios
EU MAP^^: FMSY 7550 7214 336 1 1.35 -19.1 -4.4
EU MAP^^ FMSY lower 5900 5637 263 0.78 1.44 -13.6 -25
EU MAP^^ FMSYupper 7550 7214 336 1 1.35 -19.1 -4.4
F=0 0 0 0 0 1.76 5.3 -100
B2025=Blim 28550 27279 1271 3.8 0.3 -82 261
B2025=Bpa=MSYBtrigger 23900 22836 1064 3.1 0.5 -70 203
B2025=B2024 5200 4969 231 0.68 1.48 0 -34
F=F2023 2400 2293 107 0.31 1.63 -2.5 -70




Symbol Footnotes
* Biomass 2026 relative to biomass 2025.
^ Advice value for 2025 relative to the advice value for 2024 (7900tonnes).
^^ EU multiannual plan (MAP) for the Western Waters (EU, 2019).