Advice and Scenarios Database



Herring (Clupea harengus) in Subdivision 28.1 (Gulf of Riga)
StockCode
her.27.28
Assessment Year
2021
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
14119
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.7768






Catch scenarios


Basis
Total catch
F
SSB
SSB
% SSB change**
% Advice change***
2022 2022 2022 2023 2023 2023
(t) (ratio) (t) (t) (%) (%)
ICES Basis Advice
EU MAP *: FMSY 44945 0.32 167666 147612 -12 26
EU MAP *: Flower^ 34797 0.24 170010 158979 -6.5 26
EU MAP *: Fupper^^ 52132 0.38 165931 139671 -16 26
Other scenarios
FMSY 44945 0.32 167666 147612 -12 26
F=0 0 0 177244 199221 12 -100
F=Fpa 52132 0.38 165931 139671 -16 46
F=Flim 100226 0.88 152173 89128 -41 180
Advice for 2022 limited by+20% § 42925 0.3 168143 149861 -11 20
SSB (2023)=SSB (2022) 21992 0.146 172805 173567 0.44 -39
SSB (2023)=Blim 152363 1.81 129575 40800 -69 326
SSB (2023)=Bpa 133758 1.4 139098 57100 -59 274
SSB (2023) = MSYBtrigger 130579 1.34 140527 60000 -57 265
F=F2021 35242 0.24 169909 158477 -6.7 -1.48




Symbol Footnotes
§ Advised catch given for 2022 limited by a 20% increase .
* MAP multiannual plan (EU, 2016).
** SSB 2023 relative to SSB 2022.
*** Total catch in 2022 relative to ICES advice for 2021 (35 771 tonnes for the Gulf of Riga herring stock).
^ ICES advice for Flower for 2022 relative to ICES advice for Flower for 2021 (27 702 tonnes), (in % Advice change *** column )
^^ ICES advice for Fupper for 2022 relative to ICES advice for Fupper for 2021 (41 423 tonnes), (in % Advice change *** column)