Advice and Scenarios Database



Herring (Clupea harengus) in subdivisions 25-29 and 32, excluding the Gulf of Riga (central Baltic Sea)
StockCode
her.27.25-2932
Assessment Year
2021
Stock Category
Purpose
Advice
Published
Stock Assessment Key
14107
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.7767






Catch scenarios


Basis
Total catch
Ftotal
SSB#
SSB#
% SSB change*
% Advice change**
2022 2022 2022 2023 2023 2023
(t) (ratio) (t) (t) (%) (%)
ICES Basis Advice
EU MAP^^: F = FMSY × SSB2021/MSY Btrigger 71939 0.17 425150 517652 22 -36
EU MAP^^: F = FMSY lower × SSB2021/MSY Btrigger*** 52443 0.12 431572 543889 26 -38
EU MAP^^: F=FMSY upper × SSB2021/MSY Btrigger^ 87581 0.21 419877 496925 18 -37
Other scenarios
EU MAP^^: Flower*** 65127 0.15 427410 526775 23 -22
EU MAP^^: Fupper^ 107666 0.26 412922 470775 14 -22
FMSY 88887 0.21 419428 495217 18 -21
F=0 0 0 448099 616565 38 -100
F=Fpa 129182 0.32 405261 443275 9 15
F=Flim 213452 0.59 372726 341114 -8 91
SSB (2023)=Blim 223100 0.63 368708 330000 -10 99
SSB (2023)=Bpa 116040 0.28 409970 460000 12 4
SSB (2023)=MSYBtrigger 116040 0.28 409970 460000 12 4
SSB (2023)=SSB (2022) 173178 0.45 388815 388815 0 55
F=F2021 137322 0.34 402308 433000 8 23




Symbol Footnotes
* SSB 2023 relative to SSB 2022.
** Advice value in 2022 relative to advice value for EU MAP: FMSY 2021 = F = FMSY × SSB2020/MSY Btrigger (111 852 tonnes).
*** Advice value for 2022 relative to advice value for EU MAP: Flower 2021 (83 971 tonnes), (in % Advice change ** column)
# For spring-spawning stocks, the SSB is determined at spawning time and is influenced by fisheries and natural mortality between the 1st of January and spawning time (April).
^ Advice value for 2022 relative to advice value for EU MAP: Fupper 2021 (138 183 tonnes), (in % Advice change ** column)
^^ MAP multiannual plan (EU, 2016).