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Norway lobster (Nephrops norvegicus) in Division 4.b, Functional Unit 8 (central North Sea, Firth of Forth)
StockCode (Assessment Component)
nep.fu.8
Assessment Year
2025
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
21177
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.27202764
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 2022–2024, catches in 2026 should be no more than 3186 tonnes. To ensure that the stock in Functional Unit (FU) 8 is exploited sustainably, management should be implemented at the FU level. Transfer of advised catch from other FUs to FU 8 could lead to overexploitation. 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)
Dead removals (PL + PDD)
Projected landings (PL)
Projected dead discards (PDD)
Projected surviving discards (PSD)
% harvest rate* For PL+ PDD
% advice change**
2026
2026
2026
2026
2026
2026
2026
(t)
(t)
(t)
(t)
(t)
(%)
(%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach: FMSY
3186
3145
3022
123
41
16.3
53
Other scenarios
F = MAP^: FMSY lower
2072
2045
1965
80
27
10.6
-0.34
F = MAP^: FMSY upper
3186
3145
3022
123
41
16.3
53
F = F2024
2497
2465
2369
96
32
12.8
20
F = F2022–2024
2619
2585
2484
101
34
13.4
26
Symbol
Footnotes
*
Calculated for dead removals by number.
**
Advice basis values for 2026 relative to the 2025 advice value (FMSY catch advice of 2079 tonnes).
^
EU multiannual plan (MAP) for the North Sea (EU, 2018).
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