Advice and Scenarios Database



Haddock (Melanogrammus aeglefinus) in Subarea 4, Division 6.a, and Subdivision 20 (North Sea, West of Scotland, Skagerrak)
StockCode
had.27.46a20
Assessment Year
2024
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
19014
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.25019252.v1






Catch scenarios


Basis
Total catch
Projected landings
Projected discards and IBC*
Ftotal (ages 2–4)
Fprojected landings (ages 2–4)
Fprojected discards and IBC (ages 2–4)
SSB
% SSB change **
% TAC change ***
% advice change ^
2025 2025 2025 2025 2025 2025 2026 2026 2025 2025
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%) (%)
ICES Basis Advice
MSY approach: FMSY 112435 93661 18774 0.174 0.12 0.054 420140 -22 -5.5 -25
Other scenarios
FMSYlower 104820 87350 17470 0.161 0.111 0.05 426231 -20 -11.9 -30
Fmsy upper 112435 93661 18774 0.174 0.12 0.054 420140 -22 -5.5 -25
F = 0 0 0 0 0 0 0 512700 -4.3 -100 -100
Fpa 112435 93661 18774 0.174 0.12 0.054 420140 -22 -5.5 -25
Flim 222927 185156 37771 0.39 0.268 0.122 330341 -38 87 50
SSB (2026) =Blim 464852 381649 83203 1.237 0.851 0.386 141339 -74 291 212
SSB (2026) =Bpa =MSYBtrigger 392814 324060 68754 0.892 0.614 0.278 196402 -63 230 164
F = F2024 57225 47765 9460 0.084 0.058 0.026 465273 -13.1 -52 -62




Symbol Footnotes
* Including BMS landings, assuming recent discard rate.
** SSB 2026 relative to SSB 2025.
*** Total advised catch in 2025 relative to TAC in 2024: Subdivision 20 (6233tonnes)+ Subarea 4 (101421tonnes)+ Division 6.a (11301tonnes)=118955tonnes (EU-Norway-UK, 2023).
^ Total advised catch 2025 relative to the advice value 2024 (149 024tonnes).