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
2025
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
20993
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.27202530.v1






Catch scenarios


Basis
Total removals#
Commercial landings*
Recreational kept*
Commercial discards
Recreational dead released
Survival recreational released
Fages 4–15 total removals
Fages 4–15 commercial landings
Fages 4–15 recreational kept
Spawning-stock biomass (SSB)
% SSB change ##
% advice change ###
Probability SSB <; Blim in 2027
2026 2026 2026 2026 2026 2026 2026 2026 2026 2027 2027 2026 2027
(t) (t) (t) (t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%) (ratio)
ICES Basis Advice
EU MAP^ : FMSY 7618 4914 2529 77 99 1876 0.205 0.131 0.074 27316 -11.6 190 0
F = MAP^: FMSY lower 6423 4143 2132 65 83 1582 0.17 0.108 0.062 28274 -8.51 187 0
Other scenarios
F = 0^^^ 0 0 0 0 0 0 0 0 0 33470 8.3 -100 0
F = FPA = FMSY upper 7618 4914 2529 77 99 1876 0.205 0.131 0.074 27316 -11.6 190 0
SSB2027 = Blim 20467 13201 6793 207 265 5040 0.68 0.43 0.24 17273 -44 678 53
SSB2027 = MSYBtrigger = BPA 14623 9432 4854 148 190 3601 0.44 0.28 0.157 21782 -30 456 6
SSB2027 = SSB2026 3173 2046 1053 32 41 781 0.08 0.051 0.029 30903 0 21 0
F = F2025 3881 2503 1288 39 50 956 0.099 0.063 0.036 30320 -1.89 48 0
Total removals advice (2026) = total removals advice (2025) 2631 1697 873 27 34 648 0.066 0.042 0.024 31331 1.38 0 0




Symbol Footnotes
# Includes commercial landings, recreational kept, commercial discards, and recreational dead released, computed assuming 5.00% post-release mortality.
## SSB 2027 relative to SSB 2026
### Advice values for 2026 are relative to the corresponding 2025 values (MAP advice of FMSY × SSB2025/MSYBtrigger = 2631 tonnes and FMSYlower × SSB2025/MSYBtrigger = 2241 tonnes, respectively; all other values are relative to FMSY)
^ EU multiannual plan (MAP) (EU, 2019).
^^ Projected catches for sea bass caught in divisions 8.ab in 2026 are calculated as the total catch advice for the stock (7618 tonnes for FMSY scenario) reduced by the projected catch of the bss.27.8ab stock to be taken in divisions 4.b–c, 7.a and 7.d–h when fishing at the fishing mortality for each scenario (1347 tonnes for FMSY scenario).
^^^ This scenario implies zero fishing in divisions 4.b–c, 7.a and 7.d–h in the third and the fourth quarter.