Advice and Scenarios Database



Herring (Clupea harengus) in divisions 7.a South of 52°30’N, 7.g-h, and 7.j-k (Irish Sea, Celtic Sea, and southwest of Ireland)
StockCode
her.27.irls
Assessment Year
2019
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
10329
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.4718






Catch scenarios


Basis
Total catch
F2–5
SSB *
% SSB change **
SSB *
% TAC change ***
% Advice change ^
2020 2020 2020 2021 2021 2021 2021
(t) (ratio) (t) (%) (t) (%) (%)
ICES Basis Advice
MSY approach: zero catch 0 0 24248 6.4 27628 -100 -100
Other scenarios
FMSY 4258 0.26 22018 -3.4 19871 -10.2 -10.2
FMSY x SSB2019 / MSYBtrigger 1919 0.11 23271 2 21352 -59.5 -59.5
F = 0 0 0 24248 6.4 27628 -100 -100
Fpa 4404 0.27 21938 -3.7 19779 -7.1 -7.1
Flim 6823 0.45 20553 -9.8 18263 43.9 43.9
SSB2020 = Blim ^^
SSB2020 = Bpa ^^
SSB2020=MSYBtrigger ^^
F = F2019 5334 0.34 21416 -6 19194 12.5 12.5




Symbol Footnotes
* For this autumn-spawning stock, the SSB is determined at spawning time and is influenced by fisheries between 1 April and spawning (October).
** SSB 2020 relative to SSB 2019.
*** Total catch in 2020 relative to TAC in 2019 (4742 tonnes).
^ Advice value for 2020 relative to the advice value for 2019 (4742 tonnes).
^^ These catch scenarios are left blank because the stated SSB cannot be achieved, even with F = 0.