Advice and Scenarios Database



Mackerel (Scomber scombrus) in subareas 1-8 and 14 and Division 9.a (the Northeast Atlantic and adjacent waters)
StockCode
mac.27.nea
Assessment Year
2020
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
13884
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.5907






Catch scenarios


Basis
Total catch
Fages 4–8
SSB at spawning time
SSB at spawning time
% change SSB*
% change Catch**
% change Advice***
2021 2021–2022 2021 2022 2022 2022 2022
(t) (ratio) (t) (t) (%) (%) (%)
ICES Basis Advice
MSY approach: F = FMSY 852284 0.26 3636445 3625357 -0.3 -22 -8
Other scenarios
Catch (2021) = Zero 0 0 3810530 4458501 17 -100 -100
Catch (2021) = 2020 catch -20% 872703 0.27 3631917 3606085 -0.7 -20 -5
Catch (2021) = 2020 catch 1090879 0.34 3582329 3402260 -5 0 18
Catch (2021) = 2020 catch +25% 1363599 0.45 3516989 3152976 -10 25 48
Fbar (2021) = Fbar(2020) 1012503 0.32 3600404 3475037 -4 -7 10
Fbar (2021) = 0.36 (Fpa) 1133515 0.36 3572370 3362880 -6 4 23
Fbar (2021) = 0.46 (Flim) 1392498 0.46 3509829 3126926 -11 28 51
SSB (2022) = Blim 2745447 1.17 3106469 1990863 -36 152 198
SSB (2022) = Bpa 2015898 0.74 3342532 2582647 -23 85 119




Symbol Footnotes
* SSB 2022 relative to SSB 2021.
** Catch in 2021 relative to estimated catches in 2020 (1 090 879 tonnes). There is no internationally agreed TAC for 2020.
*** Advice value for 2021 relative to the advice value for 2020 (922 064 tonnes).