Advice and Scenarios Database



Horse mackerel (Trachurus trachurus) in Division 9.a (Atlantic Iberian waters)
StockCode
hom.27.9a
Assessment Year
2017
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
9051
Link to Advice Sheet
https://doi.org/10.17895/ices.pub.3062






Catch scenarios


Basis
Catches T. trachurus
F
SSB*
SSB*
% SSB change**
% Catch change***
2018 2018 2018 2019 2019 2019
(t) (ratio) (t) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY 55555 0.11 487407 462707 -5 36
Other scenarios
F = 0 0 0 489532 516525 6 -100
F = F2017 40249 0.077 488013 477475 -2 -1
F = F2017 × 1.2 47957 0.093 487710 470032 -4 18
F = F2017 × 1.6 63046 0.124 487104 455497 -6 55
F = F2017 × 2.0 77708 0.155 486499 441418 -9 91
Fpa 55555 0.11 487407 462707 -5 36
Flim 95457 0.19 485743 424437 -13 134
SSB (2019) = Blim 455403 1.6 459043 103000 -78 1018
SSB (2019) = Bpa 360990 1.04 469570 181000 -61 786
SSB (2019) = MSY Btrigger 360990 1.04 469570 181000 -61 786




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 2019 relative to SSB 2018.
*** Catches 2018 relative to ICES estimates of catches in 2016 (40 730 t).