Advice and Scenarios Database



Seabass (Dicentrarchus labrax) in divisions 8.a-b (northern and central Bay of Biscay)
StockCode
bss.27.8ab
Assessment Year
2021
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
15631
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.7734






Catch scenarios


Basis
Total catch^
Commercial landings*
Recreational removals*
Commercial discards
Ftotal
FCommercial landings*
FRecreational removals*
SSB
% SSB change^^
% advice change^^^
2022 2022 2022 2022 2022 2022 2022 2023 2023 2023
(t) (t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%)
ICES Basis Advice
EU MAP# : FMSY 3156 2265 775 116 0.138 0.104 0.034 15520 -6.9 1.55
F = MAP# FMSY lower 2692 1932 661 99 0.117 0.088 0.029 15869 -4.8 -9.2
F = MAP# FMSY upper 3422 2455 840 126 0.151 0.113 0.037 15321 -8.1 -9.2
Other scenarios
MSY approach : FMSY 3156 2265 775 116 0.138 0.104 0.034 15520 -6.9 1.55
F = 0 0 0 0 0 0 0 0 17907 7.4 -100
F = Fpa 4160 2985 1023 153 0.186 0.14 0.046 14770 -11.4 34
SSB2023 = Blim 8034 5756 1982 296 0.4 0.3 0.098 11920 -29 158
SSB2023 = Bpa 1605 1152 394 59 0.068 0.051 0.0169 16688 0.072 -48
SSB2023 = MSYBtrigger 1605 1152 394 59 0.068 0.051 0.0169 16688 0.072 -48
SSB2023 = SSB 2022 1621 1164 398 60 0.069 0.052 0.017 16676 0 -48
F = F2020 = Fsq 2567 1842 630 95 0.111 0.083 0.028 15963 -4.3 -17.4




Symbol Footnotes
* The split of commercial landings and recreational removals, and F, in the short-term forecast account for the recreational removals’ multiplier in 2021, which corresponds to two fish-bag limit (status quo).
# EU multiannual plan (MAP) for the AREA (EU, 2019).
^ Includes projected commercial landings, recreational removals, and commercial discards, computed assuming an average ratio of 3.67%. “Projected landings” is the predicted landed catch above the minimum conservation reference size. “Projected discards” refers to landings below the minimum conservation reference size and discards.
^^ SSB 2023 relative to SSB 2022 (16 676 tonnes).
^^^ Advice values for 2022 relative to the corresponding 2021 values (MAP advice of 3108, 2966, and 3770 tonnes, respectively; other values are relative to FMSY).