Advice and Scenarios Database



Whiting (Merlangius merlangus) in Division 7.a (Irish Sea)
StockCode (Assessment Component)
whg.27.7a
Assessment Year
2025
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
20997






Catch scenarios


Basis
Total catch
Projected landings
Projected discard
Projected recreational removals *
F total
SSB
% SSB change**
% TAC change ***
% probability of SSB <; Blim
2026 2026 2026 2026 2026 2027 2027 2026 2027
(t) (t) (t) (t) (ratio) (t) (%) (%) (%)
ICES Basis Advice
MSY approach: FMSY × SSB2026/MSY Btrigger 200 27 153 20 0.122 2109 56 -72 6.2
Other scenarios
FMSY 333 45 255 33 0.21 1975 46 -54 14.4
Fpa 1021 138 781 102 0.78 1333 -1.19 42 88
F=0 0 0 0 0 0 2309 71 -100 1.4
FMSYlower 259 35 198 26 0.16 2052 52 -64 9.8
FMSYlower×SSB2026/MSYBtrigger 154 21 118 15 0.093 2155 60 -79 4.3
SSB2027=Blim 646 87 494 65 0.44 1670 24 -10.4 50
SSB2027=MSY Btrigger = Bpa^
SSB2027=SSB2026 1001 135 765 100 0.76 1349 0 39 86
F=F2024 1107 150 847 111 0.87 1258 -6.8 54 93




Symbol Footnotes
* Recreational estimates are based on the proportion of catches attributed to recreational removals in 2024 (10%).
** SSB 2027 relative to SSB 2026.
*** Total advice in 2026 relative to the TAC in 2025 (721tonnes).
^ The MSYBtrigger and Bpa option was left blank because it can not be achieved in 2027, even with zero catch in 2026.