Advice and Scenarios Database



Megrim (Lepidorhombus whiffiagonis) in divisions 8.c and 9.a (Cantabrian Sea and Atlantic Iberian waters)
StockCode
meg.27.8c9a
Assessment Year
2021
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
16769
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.7791






Catch scenarios


Basis
Total catch
Projected landings
Projected discards
Ftotal
F projected landings
F projected discards
SSB
% SSB change*
% advice change**
2022 2022 2022 2022 2022 2022 2023 2023 2023
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%)
ICES Basis Advice
EU MAP^: FMSY 553 535 18 0.191 0.168 0.023 2449 -8 18.2
F = MAP FMSY lower 371 359 12 0.122 0.107 0.015 2662 0 18.9
F = MAP FMSY upper 672 650 22 0.24 0.21 0.03 2309 -13.2 17.7
Other scenarios
MSY approach = FMSY 553 535 18 0.191 0.168 0.023 2449 -8 18.2
F = 0 0 0 0 0 0 0 3099 16.5 -100
Fpa without MSYBtrigger 672 650 22 0.24 0.21 0.03 2309 -13.2 44
Fpa with MSYBtrigger 1016 980 35 0.4 0.35 0.05 1909 -28 117
Flim 1142 1102 40 0.45 0.39 0.06 1761 -34 144
SSB (2023) = Blim 2047 1976 71 0.81 0.71 0.1 700 -74 337
SSB (2023) = Bpa 1808 1746 63 0.71 0.63 0.09 980 -63 286
SSB (2023)= MSYBtrigger 1808 1746 63 0.71 0.63 0.09 980 -63 286
SSB2023 = SSB2022 268 260 9 0.09 0.08 0.01 2782 4.6 -43
F = F2021 573 554 19 0.2 0.17 0.02 2425 -8.9 22




Symbol Footnotes
* SSB 2023 relative to SSB 2022.
** Advice values for 2022 relative to the corresponding 2021 values (MAP advice of 468, 312, and 571 tonnes, respectively; other values are relative to FMSY).
^ The EU multiannual plan (MAP; EU, 2019).