Advice and Scenarios Database



Plaice (Pleuronectes platessa) in Subarea 4 (North Sea) and Subdivision 20 (Skagerrak)
StockCode
ple.27.420
Assessment Year
2024
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
18688
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.25019441.v1






Catch scenarios


Basis
Total catch
Projected landings
Projected discards*
Ftotal(ages 2–6)**
Fprojected landings(ages 2–6)
Fprojected discards(ages 2–3)
SSB
% SSB change ***
% advice change^
Total catch^^
Projected landing
Projected discards*
% change in projected catches^^^
% TAC change#
2025 2025 2025 2025 2025 2025 2026 2026 2025 2025 2025 2025 2025 2025
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%) (t) (t) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY 176988 84100 92888 0.152 0.049 0.103 1113260 -3.5 14.2 176593 83956 92637 14.2 14.2
Other scenarios
FMSY upper 209089 99441 109648 0.182 0.058 0.124 1085388 -5.9 35 208694 99297 109397 35 35
FMSY lower 138332 65697 72635 0.117 0.037 0.08 1147061 -0.54 -10.8 137937 65553 72384 -10.8 -10.8
F=0## 0 0 0 0 0 0 1266886 9.8 -100 0 0 0 -100 -100
Fpa 209089 99441 109648 0.182 0.058 0.124 1085388 -5.9 35 208694 99297 109397 35 35
SSB (2026) =Blim 1126008 549702 576306 1.74 0.56 1.19 341003 -70 630 1125613 549558 576055 630 630
SSB (2026) =Bpa = MSY Btrigger 950686 461121 489565 1.26 0.4 0.86 473849 -59 510 950291 460977 489314 510 510
F =F2024 78553 37264 41289 0.065 0.021 0.044 1198555 3.9 -49 78158 37120 41038 -49 -49




Symbol Footnotes
* Including BMS landings, assuming recent discard rates (i.e., 2021–2023).
** Fprojected landings and Fprojected discards do not add up to the Ftotal, as they are calculated using different ages.
*** SSB 2026 relative to SSB 2025.
# Projected catch of plaice caught in Subarea 4 and Subdivision 20 in 2025 relative to the 2024 TAC (154 663 tonnes) for Subarea 4 and Subdivision 20.
## This scenario implies zero fishing in Division 7.d in the first quarter.
^ Projected catch of plaice stock in 2025 relative to the advised value for 2024, adding the proportion caught in Division 7.d (154 663 + 352 = 155 015 tonnes).
^^ Projected catches for plaice caught in Subarea 4 and Subdivision 20 in 2025 are calculated as the total catch for the stock (176 988 tonnes) reduced by the catch of the ple.27.420 stock to be taken in Division7.d when fishing at catch advice level (144 tonnes landing + 251 tonnes discards).
^^^ Projected catch of plaice caught in Subarea 4 and Subdivision 20 in 2025 relative to the value in 2024 (154 663 tonnes).