Advice and Scenarios Database



Haddock (Melanogrammus aeglefinus) in Division 6.b (Rockall)
StockCode (Assessment Component)
had.27.6b
Assessment Year
2025
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
20961






Catch scenarios


Basis
Total catch
Projected landings
Projected discards
Ftotal
Fprojected landings
Fprojected discards
Spawning-stock biomass (SSB)
% SSB change *
% advice change^
Probability of SSB (2027) <; Blim (%)^^
2026 2026 2026 2026 2026 2026 2027 2027 2026 2027
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%) (%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach: F = FMSY 20432 19500 932 0.28 0.25 0.03 86025 -9.2 -35 0
Other scenarios
EU MAP**: FMSY 20432 19500 932 0.28 0.25 0.03 86025 -9.2 -35 0
EU MAP**: FMSYlower 14060 13442 618 0.184 0.164 0.0197 92801 -2.1 -55 0
EU MAP**: FMSYupper 28050 26780 1270 0.41 0.37 0.044 77634 -18.1 -11.1 0
F = 0 0 0 0 0 0 0 107775 13.7 -100 0
FPA 28605 27304 1301 0.42 0.38 0.045 77073 -18.7 -9.4 0
F = F2025 4782 4588 194 0.059 0.053 0.0063 102587 8.3 -85 0
SSB2027 = Blim 98033 90464 7569 7.6 6.8 0.82 8542 -91 211 50
SSB2027 = Bpa 93329 86976 6353 5 4.4 0.54 11870 -87 196 33
SSB2027 = MSYBtrigger 92083 85903 6180 4.5 4.1 0.49 12877 -86 192 29
SSB2027 = SSB2026 12341 11824 517 0.159 0.142 0.0171 94765 0 -61 0




Symbol Footnotes
* SSB 2027 relative to SSB 2026.
** EU multiannual plan (MAP) for the Western Waters (EU, 2019).
^ Total catch advice for 2026 relative to the advice for 2025 (31 565tonnes).
^^ The probability of SSB being below Blim in 2027. This probability relates to the short-term probability of SSB <; Blim and is not comparable to the long-term probability of SSB <; Blim tested in simulations when estimating fishing mortality reference points.