Advice and Scenarios Database



Horse mackerel (Trachurus trachurus) in Division 9.a (Atlantic Iberian waters)
StockCode
hom.27.9a
Assessment Year
2023
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
18208
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.21907971.v1






Catch scenarios


Basis
Catches
F
SSB*
SSB*, #
% SSB change**
% catch change***
% advice change ^
2024 2024 2024 2025 2025 2025 2025
(t) (ratio) (t) (t) (%) (%) (%)
ICES Basis Advice
MSY approach: FMSY 173873 0.15 1244544 1111216 -11 596 5.3
Other scenarios
F=0 0 0 1251775 1287364 2.8 -100 -100
F=F2022 24551 0.02 1250810 1262369 0.92 -1.8 -85
Management plan^^ 129845 0.11 1246468 1155622 -7.3 419 -21
F=F2022×1.2 29407 0.024 1250618 1257430 0.55 18 -82
F=F2022×1.6 39064 0.032 1250232 1247611 -0.21 56 -76
F=F2022×2.0 48651 0.04 1249847 1237871 -0.96 94 -71
Fpa 173873 0.15 1244544 1111216 -11 596 5.3
Flim 216303 0.19 1242624 1068557 -14 765 31
SSB (2025)=Blim 1254759 2.64 1130454 103000 -91 4920 660
SSB (2025)=Bpa = MSYBtrigger 1156759 2.05 1156945 181000 -84 4528 600




Symbol Footnotes
* For this stock, the SSB is determined at spawning time (assumed to be mid-January) and is influenced by fisheries before spawning.
** SSB 2025 relative to SSB 2024.
*** Catches in 2024 relative to ICES estimates of catches in 2022 (24 997 tonnes).
# Assuming same catch scenario in 2025 as in 2024.
^ Advised catches for 2024 relative to the advised catches for 2023 (165 173tonnes).
^^ Management plan with Ftarget=0.11 (FMSY at the time of the management plan establishment).