Advice and Scenarios Database



Horse mackerel (Trachurus trachurus) in Subarea 8 and divisions 2.a, 4.a, 5.b, 6.a, 7.a-c,e-k (the Northeast Atlantic)
StockCode
hom.27.2a4a5b6a7a-ce-k8
Assessment Year
2019
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
13097
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.4883






Catch scenarios


Basis
Total catch
F
SSB
% SSB change*
% Advice change**
2020 2020 2021 2021 2021
(t) (ratio) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY × SSB2020 / MSY Btrigger 83954 0.06 1083932 13.99 -42.2
Other scenarios
F = FMSY= Fpa 102391 0.074 1067472 12.26 -29.5
F = 0 0 0 1159081 21.9 -100
F = Fp05 109017 0.079 1061560 11.64 -24.9
F = Flim 140328 0.103 1033654 8.71 -3.38
SSB (2021) = Blim 365559 0.297 834480 -12.24 151.7
SSB (2021) = MSYBtrigger=Bpa ***
F = F2019 119658 0.087 1052071 10.64 -17.61




Symbol Footnotes
* SSB (2021) relative to SSB (2020).
** Advice value for 2020 relative to advice value for 2019 (145 237 t).
*** The Bpa and MSY Btrigger options were left blank because Bpa and MSY Btrigger cannot be achieved in 2021, even with a zero catch in 2020.