Advice and Scenarios Database



Whiting (Merlangius merlangus) in Division 6.a (West of Scotland)
StockCode
whg.27.6a
Assessment Year
2024
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
19089






Catch scenarios


Basis
Total catch
Projected landings
Projected discards
Ftotal
Fprojected landings
Fprojected discards
SSB
SSB change *
Advice change**
Probability of being below Blim
2025 2025 2025 2025 2025 2025 2026 2026 2025 2026
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%) (%)
ICES Basis Advice
MSY approach: FMSY × SSB (2025) /MSY Btrigger 5116 2929 2187 0.196 0.079 0.117 22315 -7 32 17.4
Other scenarios
MSY approach: FMSY lower × SSB (2025) /MSY Btrigger 4286 2456 1830 0.162 0.065 0.097 23062 -3.8 10.5 14.1
MSY approach: FMSY upper × SSB (2025) /MSY Btrigger 5116 2929 2187 0.196 0.079 0.117 22315 -7 32 17.42
F=0 0 0 0 0 0 0 26974 12.5 -100 3
F= FMSY 5440 3112 2328 0.21 0.084 0.126 22022 -8.2 40 18.9
F= FMSY lower 4564 2614 1950 0.173 0.069 0.104 22801 -4.9 17.7 15.3
F= Fpa 5440 3112 2328 0.21 0.084 0.126 22022 -8.2 40 18.9
F= Flim 7671 4366 3305 0.31 0.124 0.186 20089 -16.2 98 30
SSB (2026)=Blim 11032 6252 4780 0.48 0.193 0.29 17286 -28 184 50
SSB (2026)=Bpa=MSYBtrigger 1469 845 624 0.052 0.021 0.031 25597 6.7 -62 5.5
SSB (2026)=SSB (2025) 3260 1873 1387 0.121 0.048 0.073 23982 0 -16 10.2
F=F2024 376 217 159 0.0132 0.0053 0.0079 26616 11 -90 3.5




Symbol Footnotes
* SSB 2026 relative to SSB 2025.
** Advice value for 2025 relative to the corresponding 2024 value (3879 tonnes).