Advice and Scenarios Database



Haddock (Melanogrammus aeglefinus) in Division 7.a (Irish Sea)
StockCode
had.27.7a
Assessment Year
2021
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
14545






Catch scenarios


Basis
Total catch
Projected landings
Projected discards
Ftotal
F projected landings
F projected discards
SSB
% SSB change*
% advice change**
2022 2022 2022 2022 2022 2022 2023 2023 2023
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY 3038 2533 505 0.28 0.17 0.11 10274 -25 -9.9
Other scenarios
EU MAP***: FMSY 3038 2533 505 0.28 0.17 0.11 10274 -25 -9.9
F=MAPFMSYlower 2245 1875 370 0.2 0.121 0.079 11073 -20 -33
F=MAPFMSYupper 3689 3070 618 0.35 0.21 0.138 9624 -30 9.4
F=0 0 0 0 0 0 0 13361 -2.9 -100
F=Fpa 4215 3504 711 0.41 0.25 0.162 9100 -34 25
F=Flim 4956 4112 844 0.5 0.3 0.197 8369 -39 47
SSB2023=Blim 10759 8716 2043 1.62 0.99 0.64 2994 -78 219
SSB2023=Bpa 9415 7686 1729 1.26 0.76 0.5 4160 -70 179
SSB2023=SSB2022^
SSB2023=MSYBtrigger 9280 7581 1700 1.23 0.75 0.48 4281 -69 175
F=F2021 1587 1327 260 0.138 0.083 0.054 11739 -15 -53




Symbol Footnotes
* SSB 2023 relative to SSB 2022.
** Advice value for 2022 relative to the FMSY advice value for 2021 (3371 tonnes).
*** EU multiannual plan (MAP) for the Western Waters (EU, 2019).
^ SSB2023 = SSB2022 cannot be achieved even with zero catches.