Advice and Scenarios Database



Sprat (Sprattus sprattus) in Subarea 4 (North Sea)
StockCode
spr.27.4
Assessment Year
2017
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
8296






Catch scenarios


Basis
Total catch*
Ftotal
SSB
% SSB change *
% catch change **
2017–2018 2017–2018 2018 2018 2018
(t) (ratio) (t) (%) (%)
ICES Basis Advice
SSB2018 = MSY Bescapement with Fcap 170387 0.7 330563 -19 -33
Other scenarios
F = 0 0 0 428964 4.9 -100
F = 0.4 103746 0.4 368151 -10 -59
F = 0.8 190785 0.8 319315 -22 -25
F = 1.0 229148 1 298516 -27 -9.3
F = 1.2 264550 1.2 279760 -32 4.7
SSB2018 = Blim 776183 9.5 90000 -78 207
SSB2018 = MSY Bescapement = Bpa 569249 4 142000 -65 125
F = F2016 316367 1.52 253132 -38 25




Symbol Footnotes
* SSB in July 2018 relative to SSB in July 2017.
** Relative to catch taken in 2016 (where 2016 corresponds to July 2016 to June 2017).