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Advicelist
View Advice
Megrim (Lepidorhombus spp.) in Division 6.b (Rockall)
StockCode (Assessment Component)
lez.27.6b
Assessment Year
2026
Stock Category
2
Purpose
Advice
Published
Stock Assessment Key
26027
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.30932135
Status:
Valid
Advice Component
Advice Category
*
FMSYranges
MP
MSY
NoAdv
Other
PA
Advice Type
*
Catches
Effort
FishMort
Landings
NoAd
NoFish
Advice Unit
*
t
ratio
%
AdviceValue
*
Advice Value Lower Range
Advice Value Upper Range
Wanted Catch
Wanted Catch Lower Range
Wanted Catch Upper Range
Advice Sentence
*
ICES advises that when the maximum sustainable yield (MSY) approach is applied, catches in 2027 should be no more than 1 169 tonnes. ICES notes the existence of a precautionary management plan, developed and adopted by one of the relevant management authorities for this stock. Management of four-spot megrim and megrim under a combined species total allowable catch (TAC) prevents effective control of the single-species exploitation rates and could lead to the overexploitation of either species.
Advice Released Date
*
Advice Applicable From
*
Advice Applicable Until
*
TAF Link
Management Alignment
Full
Multiple
Other
Partial
MP WebLink
Management Plan Ownership
Link To Evaluation
Inquiries or Comments?
Email:
Message:
Catch scenarios
Basis
Total catch
Projected landings
Projected discards
Fishing mortality F/FMSY
Stock size B/BMSY
% B change **
% advice change***
2027
2027
2027
2027
2028
2028
2027
(t)
(t)
(t)
(ratio)
(ratio)
(%)
(%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach (35th percentile of predicted catch distribution under F = FMSY)
1169
1135
34
0.91
1.4
-6.7
-3
Other scenarios
FMSY
1278
1241
37
1
1.38
-8.2
6.1
F2025
656
637
19
0.49
1.51
0.34
-46
F=0
0
0
0
0
1.64
9.3
-100
Symbol
Footnotes
*
Calculations were done with unrounded inputs, and computed values may not match exactly when calculated using the rounded figures in the table.
**
Biomass 2028 relative to biomass 2027.
***
Advice value for 2027 relative to the advice value for 2026 (1205tonnes).