Advice and Scenarios Database



Herring (Clupea harengus) in divisions 6.a and 7.b-c (West of Scotland, West of Ireland)
StockCode (Assessment Component)
her.27.6a7bc
Assessment Year
2018
Stock Category
1.2
Purpose
Advice
Published
Stock Assessment Key
9327
Link to Advice Sheet
https://doi.org/10.17895/ices.pub.4473






Catch scenarios


Basis
Total catch
Ftotal
SSB *
SSB **
% SSB change ***
% TAC change ^
% Advice change ^^
2019 2019 2019 2020 2020 2020 2020
(t) (ratio) (t) (t) (%) (%) (%)
ICES Basis Advice
MSY approach: zero catch 0 0 89089 89394 -2.7 -100
Other scenarios
2018 Monitoring TAC 5800 0.073 85558 81473 -6.5 0
Advice for scientific monitoring (ICES, 2016) 4840 0.061 86147 82120 -5.9 -16.6
Proposed rebuilding plan: lower of F2019 = SSB2018/MSY Btrigger *FMSY or F2019 = Fcatch : 5800 tonnes 2879 0.036 87344 83441 -4.6 -50
FMSY
Fpa 12262 0.16 81552 77133 -10.9 111
Flim 13685 0.18 80660 76180 -11.9 136
SSB (2020) = Blim^ 21748 0.3 75521 70798 -17.5 275
SSB (2020) = Bpa = MSY Btrigger^^^
F2019 = F2018 5100 0.064 85988 81945 -6 -12.1




Symbol Footnotes
* For this autumn-spawning stock, the SSB is determined at spawning time and is influenced by fisheries between 1st January and spawning (September).
** SSB on 1st of January 2020.
*** SSB 2019 relative to SSB 2018.