Advice and Scenarios Database



Seabass (Dicentrarchus labrax) in divisions 8.a-b (northern and central Bay of Biscay)
StockCode (Assessment Component)
bss.27.8ab
Assessment Year
2018
Stock Category
3.2
Purpose
Advice
Published
Stock Assessment Key
10203
Link to Advice Sheet
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Catch scenarios


Basis
Total catch^
Commercial landings
Recreational removals
Total F
F* commercial landings
F* recreational removals
SSB
% SSB change^^
% Advice change^^^
2019 2019 2019 2019 2019 2019 2020 2020 2020
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%)
ICES Basis Advice
MSY approach: F = FMSY × SSB 2019/MSY Btrigger 2495 1924 571 0.114 0.089 0.026 15293 -1.8 -19
Other scenarios
F = (SSB2019/MSYBtrigger) × FMSYlower 2380 1836 544 0.109 0.084 0.025 15379 -1.25 -22.7
F = (SSB2019/MSYBtrigger) × FMSYupper 3030 2336 693 0.141 0.109 0.032 14888 -4.4 -1.64
F = FMSY 2663 2054 609 0.123 0.095 0.028 15165 -2.6 -13.5
F = 0 0 0 0 0 0 0 17196 10.4 -100
F = Fpa 2663 2054 609 0.123 0.095 0.028 15165 -2.6 -13.5
F = Flim 3643 2810 834 0.172 0.133 0.039 14424 -7.4 18.3
SSB2020 = Blim 7004 5398 1606 0.36 0.28 0.081 11920 -24 127
SSB2020 = Bpa 662 511 151 0.029 0.023 0.007 16688 7.2 -79
SSB2020 = MSYBtrigger 662 511 151 0.029 0.023 0.007 16688 7.2 -79
F = F2017 = Fsq 2684 2070 614 0.124 0.096 0.028 15149 -2.7 -12.8
FMSYlower 2541 1960 581 0.117 0.09 0.026 15257 -2.03 -17.5
FMSYupper 3231 2492 739 0.151 0.117 0.034 14735 -5.38 4.9




Symbol Footnotes
* The split of total F into commercial landings and recreational removals in the short-term forecast is based on the proportion observed in 2017.
^ Includes commercial landings and recreational removals.
^^ SSB 2020 relative to SSB 2019.
^^^ Commercial landings component of the advice value for 2019 relative to the advice value (commercial landings) for 2018.