Advice and Scenarios Database



Cod in Subarea 4, divisions 6.a and 7.d, and Subdivision 20 (North Sea, West of Scotland, eastern English Channel and Skagerrak)
StockCode (Assessment Component)
cod.27.46a7d20 (Northwestern Substock)
Assessment Year
2026
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
26003
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.30932018






Catch scenarios


Basis
Total catch
F total (2-4)
Spawning-stock biomass (SSB)
SSB change*
Advice change**
Probability of SSB less than Blim^^
2027 2027 2028 2028 2027 2028
(t) (ratio) (t) (%) (%) (%)
ICES Basis Advice
Precautionary considerations: F = 0 0 0 29831 43 16.1
Other scenarios
F2027 = F2026 x 0.36*** 3717 0.122 25350 22 38
Maximum sustainable yield (MSY) approach: FMSY × SSB (2027)/MSYBtrigger 3704 0.121 25365 22 38
FMSY lower × SSB (2027)/MSYBtrigger 2191 0.069 27214 31 28
FMSY 5487 0.19 23236 11.7 52
FMSY lower 3329 0.108 25846 24 36
FPA 10732 0.442 17012 -18.2 89
SSB (2028) = Blim 5337 0.184 23423 12.6 50
SSB (2028) = MSY Btrigger = BPA^
F = F2026 8868 0.34 19225 -7.6 79
SSB(2028)=SSB(2027) 7576 0.279 20798 0 69
P(SSB(2028) <; Blim) = 5% ^ ,^^




Symbol Footnotes
* SSB 2028 relative to SSB 2027 20 798 t).
** Advice value for 2027 relative to the corresponding advice value for 2026 (0 t).
*** F multiplier that equates approximately to the cumulative substock advice, 8574 t (3717 t + 3264 t + 1593 t), when following the MSY approach for the Northwestern and Viking substocks and MSY approach with precautionary considerations for the Southern substock independently and equates to a total catch of 8574 t (3704 t + 4870 t + 0 t).