Advice and Scenarios Database



Herring (Clupea harengus) in Subdivision 28.1 (Gulf of Riga)
StockCode
her.27.28
Assessment Year
2020
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
13351
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.5877






Catch scenarios


Basis
Total catch
F
SSB
SSB
% SSB change**
% Advice change***
2021 2021 2021 2022 2022 2022
(t) (ratio) (t) (t) (%) (%)
ICES Basis Advice
EU MAP *: FMSY 35771 0.32 129580 120724 -6.8 17.7
EU MAP *: Flower^ 27702 0.24 131416 129832 -1.21 18.4
EU MAP *: Fupper^^ 41423 0.38 128235 114426 -10.8 18
Other scenarios
FMSY 35771 0.32 129580 120724 -6.8 17.7
F = 0 0 0 137089 162076 18.2 -100
F = Fpa 62303 0.63 122766 91786 -25 105
F = Flim 79500 0.88 117507 73959 -37 162
SSB (2022) = Blim 114130 1.61 103508 40800 -61 276
SSB (2022) = Bpa 96575 1.19 111332 57100 -49 218
SSB (2022) = MSYBtrigger 93521 1.13 112523 60000 -47 208
F = F2020 29868 0.26 130933 127375 -2.7 -1.69




Symbol Footnotes
* MAP multiannual plan (EU, 2016).
** SSB 2022 relative to SSB 2021.
*** Total catch in 2021 relative to ICES advice for 2020 (30 382 tonnes for the Gulf of Riga herring stock).
^ ICES advice for Flower for 2021 relative to ICES advice Flower for 2020 (23 395 tonnes), (in % Advice change*** column)
^^ ICES advice for Fupper for 2021 relative to ICES advice Fupper for 2020 (35 094 tonnes), (in % Advice change*** column)