Advice and Scenarios Database



Herring (Clupea harengus) in subareas 1, 2, 5 and divisions 4.a and 14.a, Norwegian spring-spawning herring (the Northeast Atlantic and Arctic Ocean)
StockCode
her.27.1-24a514a
Assessment Year
2021
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
16732
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.7765






Catch scenarios


Basis
Total catch
F
SSB
% SSB change*
% Catch change**
% Advice change***
2022 2022 2023 2023 2023 2023
(t) (ratio) (t) (%) (%) (%)
ICES Basis Advice
Agreed management strategy ^ 598588 0.14 3607952 -8 -32 -8
Other scenarios
MSY approach: FMSY 665436 0.157 3549887 -9.4 -24 2.2
F=0 0 0 4129529 5.4 -100 -100
Fpa 665436 0.157 3549887 -9.4 -24 2.2
Flim 1152881 0.291 3127774 -20 31 77
SSB2023=Blim 1883778 0.534 2500041 -36 114 189
SSB2023=Bpa=MSYBtrigger 1087697 0.272 3184080 -18.8 23 67
F=F2021 729494 0.174 3494282 -10.9 -17.2 12.1




Symbol Footnotes
* SSB2023 relative to SSB2022.
** Catch in 2022 relative to ICES estimated catch in 2021 (881 097 tonnes).
*** Advice value 2022 relative to advice value 2021 (651 033 tonnes).
^ According to the harvest control rule in the management strategy F (2022) = Fmgt = 0.14, since the SSB is forecasted to be above Btrigger on 1 January 2022.