Advice and Scenarios Database



Plaice (Pleuronectes platessa) in Division 7.d (eastern English Channel)
StockCode
ple.27.7d
Assessment Year
2022
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
17357






Catch scenarios


Basis
Division 7.d plaice stock 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$
All plaice in Division 7.d# 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##
2023 2023 2023 2023 2023 2023 2024 2024 2024 2023 2023 2023 2023 2023
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%) (t) (t) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY 4738 2204 2534 0.156 0.046 0.11 44175 6.08 -25 5671 2638 3033 4.2 -25
Other scenarios
F = FMSY lower 3493 1627 1866 0.113 0.034 0.079 45820 10 -45 4181 1948 2233 -23 -45
F = FMSY 4738 2204 2534 0.156 0.046 0.11 44175 6.08 -25 5671 2638 3033 4.2 -25
F = FMSY upper 6618 3070 3548 0.22 0.067 0.157 41706 0.15 4 7922 3674 4247 46 4.7
F = 0 0 0 0 0 0 0 50473 23 -100 0 0 0 -100 -100
Fpa 6992 3506 3750 0.23 0.07 0.17 41217 -1.02 9.8 8370 3880 4990 54 10
Flim 10578 4876 5702 0.38 0.27 0.11 36573 -12 66 12661 5836 6826 133 67
SSB (2024) = Blim 18080 8210 9870 0.75 0.22 0.53 27147 -35 184 21642 9827 11814 298 186
SSB (2024) = Bpa 9655 4457 5198 0.34 0.1 0.24 37761 -9.32 52 11555 5335 6222 112 53
SSB (2024) = MSYBtrigger 9655 4457 5198 0.34 0.1 0.24 37761 -9.32 52 11555 5335 6222 112 53
F = F2022 5556 2581 2975 0.185 0.06 0.13 43098 3.5 -13 6651 3090 3561 22 -12




Symbol Footnotes
* Including BMS landings, assuming recent discard rate.
** SSB 2024 relative to SSB 2023.
# All plaice in Division 7.d, including plaice originating from the North Sea and the western English Channel, according to a ratio calculated over the years 2003–2021: 16.46 % of the plaice landed in Division 7.d is assumed to originate from the North Sea and the western English Channel which is equivalent to an additional 19.70% on top of the landings from the Division 7.d plaice stock. This ratio is therefore added to the predicted values for the Division 7.d plaice stock and applies to total catch, projected landings, and projected discards.
## Total catch of plaice in division 7d in 2023 relative to the advice value 2022 (7566 tonnes)
^ Differences between total catch and the sum of projected landings and discards result from rounding.
^^ Total catch of plaice in division 7d in 2023 relative to the ICES estimates of catches in 2021 (5442 tonnes)
$ Total catch of plaice stock in 2023 relative to the advice value 2022 (6365 tonnes)