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
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.