Advice and Scenarios Database



Plaice (Pleuronectes platessa) in Subarea 4 (North Sea) and Subdivision 20 (Skagerrak)
StockCode
ple.27.420
Assessment Year
2022
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
17483






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***
% TAC change^
% advice change^
2023 2023 2023 2023 2023 2023 2024 2024 2024 2024
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%) (%)
ICES Basis Advice
MSY approach: FMSY 150705 89647 61058 0.15 0.06 0.09 939221 -3.9 5.8 5.8
Other scenarios
F=FMSY upper 178156 105971 72185 0.18 0.08 0.11 916347 -6.3 25 25
F=FMSY lower 117767 70047 47720 0.12 0.05 0.07 966970 -1.08 -17.4 -17.4
F=0 0 0 0 0 0 0 1065304 8.9 -100 -100
Fpa 178156 105971 72185 0.18 0.08 0.11 916347 -6.3 25 25
SSB (2024) =Blim 910260 538461 371799 1.53 0.64 0.88 341003 -65 540 540
SSB (2024) =Bpa 730460 432732 297728 1.04 0.44 0.6 473850 -52 410 410
SSB (2024) =MSYBtrigger 730460 432732 297728 1.04 0.44 0.6 473850 -52 410 410
Rollover advice 142508 85173 57335 0.14 0.06 0.08 945389 -3.3 0 0
F2023=F2022 81350 48410 32940 0.08 0.03 0.05 997551 2.1 -43 -43




Symbol Footnotes
* “Projected” (marketable) landings and discards are used to describe fish that would be landed and discarded in the absence of the EU landing obligation, based on average discard rate estimates for 2019–2021. Total catch is equal to the sum of “Projected landings” and “Projected discards”. Both projected landing and projected discards refer to Subarea 4 and Subdivision 20, calculated as the projected total stock catch (i.e. total stock catches which includes catches of the subarea 4 and subdivision 20 plaice stock that are taken in Division 7.d) and deducting the catches of the subarea 4 and subdivision 20 plaice stock forecast to be taken in Division 7.d in 2023. The subtracted value (278 t of projected landings and 326 t of projected discards) is estimated based on the plaice catch advice for Division 7.d for 2023.
** Including BMS landings (EU stocks), assuming recent discard rates.
*** SSB 2024 relative to SSB 2023.
^ Total catch in 2023 relative to the advice value 2022 and TAC (142 508 tonnes).
^^ Fprojected landings and Fprojected discards do not add up to the Ftotal as they are calculated using different ages.