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
2026
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
25921
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.30932117






Catch scenarios


Basis
Total catch
F
Spawning-stock biomass (SSB)
SSB
% SSB change*
% total allowable catch (TAC) change**
% advice change***,^^^
2027 2027 2027 2028 2028 2027 2027
(t) (ratio) (t) (t) (%) (%) (%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach: F = 0 0 0 74221 76718 2 -100
Other scenarios
F=FMSY = FPA^
F=F2026 1112 0.017 74010 75642 0.6 14.7
SSB2027=BPA, Blim, or SSB2026 ^^
Catch2027 = catch2026 - 20% 776 0.012 74075 75966 1 -20
Catch2027 = catch2026 970 0.015 74038 75779 0.8 0
Catch2027 = catch2026 + 25% 1213 0.019 73991 75546 0.5 25




Symbol Footnotes
* SSB 2028 relative to SSB 2027.
** Catch scenario for 2027 relative to the TAC in 2026 (970 t).
*** Advice value 2027 relative to advice value 2026 (0 t).
^ FMSY and FPA not defined.
^^ BPA, Blim, or SSB2026 cannot be achieved in 2028, even with zero catches.
^^^ There is no % of advice change given because the previous advice given was 0.