Advice and Scenarios Database



Plaice (Pleuronectes platessa) in Division 7.d (eastern English Channel)
StockCode
ple.27.7d
Assessment Year
2023
Stock Category
1
Purpose
Replaced
Published
Stock Assessment Key
18217






Catch scenarios


Basis
Total catch (Division 7.d plaice stock) ^
Projected landings (Division 7.d plaice stock)
Projected discards (Division 7.d plaice stock) *
Ftotal (ages 3-6) (Division 7.d plaice stock)
Fprojected landings (ages 3-6) (Division 7.d plaice stock)
Fprojected discards (ages 3-6) (Division 7.d plaice stock)
SSB (Division 7.d plaice stock)
% SSB change (Division 7.d plaice stock) **
% advice change (Division 7.d plaice stock) $
Total catch (All plaice in Division 7.d#)
Projected landings (All plaice in Division 7.d#)
Projected discards (All plaice in Division 7.d#) *
% change in projected catches (All plaice in Division 7.d#) ^^
% advice change (All plaice in Division 7.d#) ##
2024 2024 2024 2024 2024 2024 2025 2025 2024 2024 2024 2024 2024 2024
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%) (t) (t) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY × SSB (2024)/MSY Btrigger 2367 1058 1309 0.119 0.029 0.09 29594 2.5 -50 2826 1263 1562 -62 -50
Other scenarios
F=FMSYlower× SSB(2024)/ MSYBtrigger 1737 777 960 0.086 0.021 0.065 30449 5.5 -63 2074 927 1146 -72 -63
FMSY lower 2249 1005 1243 0.113 0.028 0.085 29754 3.1 -53 2684 1200 1484 -64 -53
FMSY 3052 1364 1688 0.156 0.038 0.118 28668 -0.68 -36 3643 1628 2015 -52 -36
F = 0 0 0 0 0 0 0 32828 13.7 -100 0 0 0 -100 -100
Fpa 4510 2014 2496 0.238 0.058 0.18 26714 -7.5 -4.8 5383 2403 2980 -28 -5.1
Flim 6836 3047 3789 0.381 0.093 0.29 23644 -18.1 44 8160 3637 4523 8.5 44
SSB (2025) = Blim 4185 1869 2316 0.22 0.054 0.166 27147 -5.9 -11.7 4996 2231 2765 -34 -11.9
SSB (2025) = Bpa = MSYBtrigger ###
F = F2023 3611 1613 1998 0.187 0.046 0.141 27917 -3.3 -24 4310 1925 2384 -43 -24




Symbol Footnotes
# All plaice in Division 7.d, including plaice originating from the North Sea and the western English Channel. Of the plaice caught in Division 7.d, 12.49% is assumed to originate from the North Sea and 3.75% from the western English Channel, which are added to the predicted values for the Division 7.d plaice stock and applies to total catch, projected landings, and projected discards. Following ICES advice basis, catches in Division 7.d will comprise 2367 tonnes coming from the ple.27.7d stock, plus 352 tonnes coming from the ple.27.420 stock and 106 tonnes from the ple.27.7e stock.
## Total catch of plaice in division 7d in 2024 relative to the advice value 2023 (5671 tonnes).
### Bpa and MSY Btrigger cannot be achieved in 2025, even with zero catches.
$ Total catch of plaice stock in 2024 relative to the advice value 2023 (4738 tonnes).
* Including BMS landings, assuming recent discard rate.
** SSB 2025 relative to SSB 2024.
^ Differences between total catch and the sum of projected landings and discards result from rounding.
^^ Total catch of plaice in division 7d in 2024 relative to the ICES estimates of catches in 2022 (7520 tonnes).