Advice and Scenarios Database



Whiting (Merlangius merlangus) in Division 6.a (West of Scotland)
StockCode
whg.27.6a
Assessment Year
2021
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
17323
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.8220






Catch scenarios


Basis
Total catch
Projected landings*
Projected discards**
Ftotal
Fprojected landings
Fprojected 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: MSY 4114 2142 1972 0.21 0.038 0.172 24860 -16.5
Other scenarios
F=0 0 0 0 0 0 0 29364 -1.13
FMSY lower 3433 1784 1649 0.173 0.031 0.142 25565 -14.1
FMSY upper 4114 2142 1972 0.21 0.038 0.172 24860 -16.5
Fpa 4114 2142 1972 0.21 0.038 0.172 24860 -16.5
Flim 5870 3074 2796 0.31 0.056 0.25 23076 -22
SSB (2023)=Blim 12207 6498 5709 0.74 0.134 0.61 17286 -42
SSB (2023)=Bpa=MSYBtrigger 3403 1768 1635 0.171 0.031 0.14 25597 -14
SSB (2023)=SSB (2022)^^
F=F2021 1332 688 644 0.065 0.0117 0.053 27856 -6.4




Symbol Footnotes
* Marketable landings, assuming recent discard rate.
** Including BMS landings (EU stocks), assuming recent discard rate.
*** SSB 2023 relative to SSB 2022.
^ This is not provided because the advice for 2021 was zero.
^^ The SSB (2023) = SSB (2022) option was left blank because this cannot be achieved in 2023, even with zero catch in 2022.