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
2020
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
13663
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.5916






Catch scenarios


Basis
Total catch*
Commer-cial landings
Commer-cial discards
Recreat-ional removals
F total
F commer-cial landings
F commer-cial discards
F recreational removals
SSB
% SSB change**
% advice change***
2021 2021 2021 2021 2021 2021 2021 2021 2022 2022 2022
(t) (t) (t) (t) (ratio) (ratio) (ratio) (ratio) (t) (%) (%)
ICES Basis Advice
EU MAP #: FMSY × SSB2021 / MSY Btrigger 2000 1353 121 526 0.136 0.095 0.0047 0.037 11209 -2.1 2.8
EU MAP #: FMSY upper × SSB2021 / MSY Btrigger^ 2000 1353 121 526 0.136 0.095 0.0047 0.037 11209 -2.1 2.8
EU MAP #: FMSY lower × SSB2021 / MSYBtrigger^ 1680 1137 101 442 0.113 0.079 0.0039 0.03 11472 0.18 2.8
Other scenarios
MSY approach: FMSY × SSB2021 / MSYBtrigger 2000 1353 121 526 0.136 0.095 0.0047 0.037 11209 -2.1 2.8
F = FMSY 2478 1676 151 651 0.171 0.119 0.0059 0.046 10817 -5.5 27
F = 0 0 0 0 0 0 0 0 0 12864 12.3 -100
Fpa 2613 1767 159 687 0.182 0.127 0.0062 0.049 10706 -6.5 34
Flim 3530 2384 217 928 0.254 0.177 0.0087 0.068 9957 -13 81
SSB2022 = Blim 3093 2091 190 813 0.219 0.152 0.0075 0.059 10313 -9.9 59
SSB2022 = Bpa ^^
SSB2022 = MSYBtrigger ^^
F = F2020 1635 1107 99 430 0.11 0.077 0.0038 0.029 11510 0.52 -16




Symbol Footnotes
* Includes commercial catch and recreational removals (taking mortality of released fish into account, estimated at approximately 5%).
** SSB 2022 relative to SSB 2021.
*** Advice value for 2021 relative to the MSY value for 2020 (1946 tonnes).
# MAP multiannual plan (EU, 2019).
^ Advice value this year relative to the advice value last year for the MSY lower (1634 tonnes) and MSY upper (1946 tonnes), in % advice change*** column
^^ The Bpa and MSY Btrigger options were left blank because Bpa and MSY Btrigger cannot be achieved in 2022, even with zero catch in 2021.