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
2020
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
13894
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.5908






Catch scenarios


Basis
Total catch
F
SSB
% SSB change*
% advice change**
2021 2021 2022 2022 2022
(t) (ratio) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY × SSB2021 / MSY Btrigger 81376 0.061 1037631 7.9 -3.1
Other scenarios
F = FMSY = Fpa 98167 0.074 1022274 6.3 16.9
F = 0 0 0 1112225 15.7 -100
F = Fp05 104513 0.079 1016473 5.7 25
F = Flim 134489 0.103 989095 2.9 60
SSB2022 = Blim 304688 0.25 834480 -13.2 263
SSB2022 = MSYBtrigger=Bpa ***
F = F2020 75352 0.056 1043144 8.5 -10.3
PELAC proposed HCR ^ 52503 0.037 1063977 10.7 -38




Symbol Footnotes
* SSB (2022) relative to SSB (2021).
** Advice value for 2021 relative to advice value for 2020 (83 954 tonnes).
*** The Bpa and MSY Btrigger options were left blank because Bpa and MSY Btrigger cannot be achieved in 2022, even with a zero catch in 2021.
^ Double breakpoint HCR proposed and evaluated by PELAC 2020 (ICES, 2020), pending scientific review by ICES.