Advice and Scenarios Database



Horse mackerel (Trachurus trachurus) in divisions 4.b, 4.c, and 7.d (southern and central North Sea, eastern English Channel)
StockCode (Assessment Component)
hom.27.4bc7d
Assessment Year
2024
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
19195
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.26763895.v1






Catch scenarios


Basis
Total catch
F
SSB
SSB
SSB change*
TAC change**
Advice change***
2025 2025 2025 2026 2026 2025 2025
(t) (ratio) (t) (t) (%) (%) (%)
ICES Basis Advice
MSY approach: F = 0 0 0 59233 62167 5 -100 -100
Other scenarios
F=Fmsy ^
Flim 1387 0.0385 59008 60924 3.2 -86 -86
F=F2024 6282 0.187 58163 56682 -2.5 -35 -35
F = Fpa^
SSB2026=Bpa, or Blim ^^
SSB2026=SSB2025 4095 0.118 58551 58550 0 -58 -58
Catch2025 = catch2024 - 20% 4760 0.138 58435 57977 -0.78 -51 -51
Catch2025 = catch2024 5951 0.176 58223 56962 -2.2 -39 -39
Catch2025 = catch2024 + 25% 7438 0.225 57951 55712 -3.9 -24 -24




Symbol Footnotes
* SSB 2026 relative to SSB 2025.
** Catch scenario for 2025 relative to the TAC in 2024 (9 730 t).
*** Advice value 2025 relative to advice value 2024 (9 730 t).
^ Could not be reliably estimated and is therefore not presented as a catch option.
^^ Bpa and Blim cannot be achieved in 2026, even with zero catches.