Advice and Scenarios Database



Haddock (Melanogrammus aeglefinus) in Subarea 4, Division 6.a, and Subdivision 20 (North Sea, West of Scotland, Skagerrak)
StockCode (Assessment Component)
had.27.46a20
Assessment Year
2026
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
22417
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.30932057






Catch scenarios


Basis
Total catch
Projected landings
Projected discards and industrial bycatch (IBC)*
Ftotal (ages 2–4)
Fprojected landings (ages 2–4)
Fprojected discards and IBC (ages 2–4)
Spawning-stock biomass (SSB)
% SSB change**
% TAC change***
% advice change^
2027 2027 2027 2027 2027 2027 2028 2028 2027 2027
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%) (%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach: FMSY 87366 72284 15082 0.167 0.093 0.074 418419 -24 -19.3 -19.3
Other scenarios
FMSYlower 81587 67526 14061 0.155 0.086 0.069 422697 -23 -25 -25
Fmsy upper 87366 72284 15082 0.167 0.093 0.074 418419 -24 -19.3 -19.3
F = 0 0 0 0 0 0 0 486222 -11.4 -100 -100
FPA 87366 72284 15082 0.167 0.093 0.074 418419 -24 -19.3 -19.3
SSB (2028) =Blim 475943 387789 88154 1.75 0.97 0.77 138250 -75 339 339
SSB (2028) = BPA = MSY Btrigger 393456 322343 71113 1.19 0.66 0.53 192109 -65 263 263
F = F2026 37484 31051 6433 0.068 0.038 0.03 456820 -16.8 -65 -65




Symbol Footnotes
* Including below minimum size (BMS) landings, assuming recent discard rate.
** SSB 2028 relative to SSB 2027.
*** Total advised catch in 2027 relative to total allowable catch (TAC) in 2026: Subdivision 20 (5675tonnes)+ Subarea 4 (92 337tonnes)+ Division 6.a (10 289tonnes)=108 301tonnes (Norway–UK–EU, 2025).
^ Total advised catch 2027 relative to the advice value 2026 (108 301tonnes).