Advice and Scenarios Database



Haddock (Melanogrammus aeglefinus) in Subarea 4, Division 6.a, and Subdivision 20 (North Sea, West of Scotland, Skagerrak)
StockCode
had.27.46a20
Assessment Year
2022
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
17721
Link to Advice Sheet
NA - The advice link for key 17721 was not found!






Catch scenarios


Basis
Total catch
Projected landings
Projected discards and IBC*
Ftotal (ages 2–4)
Fprojected landings (ages 2–4)
Fprojected discards and IBC (ages 2–4)
SSB
% SSB change ^
% TAC change ^^
% advice change ^^^
2023 2023 2023 2023 2023 2023 2024 2024 2024 2024
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%) (%)
ICES Basis Advice
MSY approach: FMSY 126511 108803 17708 0.24 0.192 0.048 404863 88 140 -1.71
Other scenarios
F = FMSYlower 100701 86677 14024 0.186 0.149 0.037 427526 93 91 -22
F = FMSY upper# 126511 108803 17708 0.24 0.192 0.048 404863 88 140 -1.71
F = 0 0 0 0 0 0 0 514443 112 -100 -100
Fpa 126511 108803 17708 0.24 0.192 0.048 404863 88 140 -1.71
Flim 206565 176939 29626 0.43 0.34 0.086 335815 73 292 60
SSB (2024) =Blim 453431 382690 70741 1.46 1.17 0.29 135146 30 761 252
SSB (2024) =Bpa =MSYBtrigger 384487 327014 57473 1.06 0.85 0.21 188685 41 630 199
F = F2022 66675 57616 9059 0.119 0.095 0.024 456915 100 27 -48
Rollover TAC 52692 45614 7078 0.093 0.074 0.019 468560 102 0 -59




Symbol Footnotes
* Including below minimum size (BMS) landings, assuming recent discard rate.
# For this stock, FMSY upper = FMSY.
^ SSB 2024 relative to SSB 2023.
^^ Human consumption fishery (HCF) catch in 2023 relative to TAC in 2022: Subdivision 20 (2761 t) + Subarea 4 (44 924 t) + Division 6.a (5006 t) = 52 691 t.
^^^ Total catch 2023 relative to the advice value 2022 (128 708 t).