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
2023
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
18370
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.21856533.v1






Catch scenarios


Basis
Total catch
Fages 4–8
SSB at spawning time
SSB at spawning time
SSB change*
Catch change**
Advice change ***
2024 2024 2024 2025 2025 2025 2025
(t) (ratio) (t) (t) (%) (%) (%)
ICES Basis Advice
MSY approach: F = FMSY 739386 0.26 3455125 3434616 -1 -36 -5
Other scenarios
F = 0 0 0 3593282 4174174 16 -100 -100
Catch2024 = catch2023 - 20% 917926 0.33 3418309 3277843 -4 -20 17
Catch2024 = catch2023 1147407 0.43 3368635 3107830 -8 0 47
Catch2024 = catch2023 + 25% 1434259 0.57 3302353 2895825 -12 25 83
F = F2023 1039888 0.38 3392255 3148251 -7 -9 33
Fpa 984926 0.36 3404090 3199985 -6 -14 26
Flim 1211812 0.46 3354179 2988326 -11 6 55
SSB2025 = Blim^ 2359065 1.13 3046688 2000132 -34 106 202
SSB2025 = Bpa^ 1671572 0.69 3243490 2575295 -21 46 114




Symbol Footnotes
* SSB2025 relative to SSB2024.
** Catch in 2024 relative to estimated catches in 2023 (1 147 407 tonnes). There is no internationally agreed TAC for 2023.
*** Advice value for 2024 relative to the advice value for 2023 (782 066 tonnes).
^ SSB2025 values are the closest available approximation to Blim and Bpa.