Advice and Scenarios Database



Megrim (Lepidorhombus whiffiagonis) in divisions 7.b-k, 8.a-b, and 8.d (west and southwest of Ireland, Bay of Biscay)
StockCode
meg.27.7b-k8abd
Assessment Year
2023
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
18115
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.21840930.v1






Catch scenarios


Basis
Total catch
Projected landings*
Projected discards**
Fages 3–6 Total
SSB
% SSB change ***
% advice change^
2024 2024 2024 2024 2025 2025 2025
(t) (t) (t) (ratio) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY 23303 19670 3633 0.23 89889 -6.1 -1.24
Other scenarios
EU MAP^^ = FMSY 23303 19670 3633 0.23 89889 -6.1 -1.24
F = MAP^^ FMSYlower 14912 12606 2306 0.14 98649 3.1 -37
F = MAP^^ FMSYupper 37722 31750 5972 0.41 74956 -22 60
F = 0 0 0 0 0 114313 19.5 -100
Fpa 39152 32943 6209 0.43 73485 -23 66
Flim 49586 41616 7970 0.59 62817 -34 110
SSB (2025) = Blim 72018 59997 12021 1.07 40444 -58 205
SSB (2025) = Bpa 77246 64204 13042 1.23 35398 -63 227
SSB(2025)=MSYBtrigger 72018 59997 12021 1.07 40444 -58 205
SSB (2025) = SSB (2024) 17739 14988 2751 0.169 95693 0 -25
F = F2023 20166 17032 3134 0.195 93158 -2.6 -14.5




Symbol Footnotes
* Marketable landings, assuming recent discard rate.
** Including BMS landings (EU stocks), assuming recent discard rate.
*** SSB 2025 relative to SSB 2024 (95 693 tonnes).
^ Advice value for 2024 relative to advice value for 2023 (23 596 tonnes).
^^ EU multiannual plan (MAP) for the Western Waters (EU, 2019).