Advice and Scenarios Database



Seabass (Dicentrarchus labrax) in divisions 4.b-c, 7.a, and 7.d-h (central and southern North Sea, Irish Sea, English Channel, Bristol Channel, and Celtic Sea)
StockCode
bss.27.4bc7ad-h
Assessment Year
2021
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
15636






Catch scenarios


Basis
Total removals*
Projected landings
Projected discards
Recreational removals
Ftotal
Fprojected landings
Fprojected discards
F recreational removals
SSB
% SSB change**
% advice change***
2022 2022 2022 2022 2022 2022 2022 2022 2023 2023 2023
(t) (t) (t) (t) (ratio) (ratio) (ratio) (ratio) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY × SSB2022/MSY Btrigger 2216 1469 164 583 0.143 0.099 0.0057 0.038 11827 -1.87 10.8
Other scenarios
EU MAP^: FMSY×SSB2022/MSYBtrigger 2216 1469 164 583 0.143 0.099 0.0057 0.038 11827 -1.87 10.8
EU MAP^: FMSYupper×SSB2022/MSYBtrigger 2216 1469 164 583 0.143 0.099 0.0057 0.038 11827 -1.87 10.8
EU MAP^: FMSYlower×SSB2022/MSYBtrigger 1859 1233 137 489 0.119 0.082 0.0047 0.032 12121 0.57 -7.1
F=FMSY 2620 1736 195 690 0.171 0.119 0.0068 0.046 11496 -4.6 31
F=0 0 0 0 0 0 0 0 0 13660 13.3 -100
Fpa 3059 2025 229 805 0.2 0.141 0.0081 0.054 11137 -7.6 53
Flim 3738 2472 282 984 0.25 0.176 0.0101 0.068 10584 -12.2 87
SSB2023=Blim 4072 2691 308 1073 0.28 0.194 0.0112 0.075 10313 -14.4 104
SSB2023=Bpa^^
SSB2023=MSYBtrigger^^
F=F2021 1790 1188 132 471 0.114 0.079 0.0045 0.03 12177 1.03 -10.5
SSB2023=SSB2022 1941 1288 143 511 0.124 0.086 0.0049 0.033 12052 0 -2.9




Symbol Footnotes
* Includes commercial catch and recreational removals (taking mortality of released fish into account, estimated at approximately 5%).
** SSB 2023 relative to SSB 2022.
*** Advice value for 2022 relative to the MSY value for 2021 (2000 tonnes).
^ MAP multiannual plan (EU, 2019).
^^ The Bpa and MSY Btrigger options were left blank because Bpa and MSY Btrigger cannot be achieved in 2023, even with zero catch in 2022.