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Norway lobster (Nephrops norvegicus) in Division 4.a, Functional Unit 9 (central North Sea, Moray Firth)
StockCode (Assessment Component)
nep.fu.9
Assessment Year
2026
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
25923
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.30932246
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, and assuming that discard rates and fishery selection patterns do not change from the average of the years 2023–2025, catches in 2027 should be no more than 2 819 tonnes. To ensure that the stock in Functional Unit (FU) 9 is exploited sustainably, management should be implemented at the FU level. ICES notes the existence of a management plan, developed and adopted by one of the relevant management authorities for Subarea 4.
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 (PL + PDD + PSD)
Projected landings (PL)
Dead removals (PL + PDD)
Projected dead discards (PDD)
Projected surviving discards (PSD)
% harvest rate* for PL + PDD
% advice change**
2027
2027
2027
2027
2027
2027
2027
(t)
(t)
(t)
(t)
(t)
(%)
(%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach: FMSY
2819
2771
2807
36
12
11.8
-5.7
Other scenarios
F = MAP^: FMSY lower
2174
2137
2165
28
9
9.1
-27
F = MAP^: FMSY upper
2819
2771
2807
36
12
11.8
-5.7
F = F2025
814
801
811
10
3
3.4
-73
Symbol
Footnotes
*
Calculated for dead removals by number.
**
Advice basis values for 2027 relative to the 2026 advice values (FMSY catch advice of 2989 tonnes).
^
EU multiannual plan (MAP) for the North Sea (EU, 2018).
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