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Norway lobster (Nephrops norvegicus) in Division 4.a, Functional Unit 32 (northern North Sea, Norway Deep)
StockCode (Assessment Component)
nep.fu.32
Assessment Year
2025
Stock Category
2
Purpose
Advice
Published
Stock Assessment Key
21234
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.28162889
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 53 tonnes. To ensure the stock in Functional Unit (FU) 32 is exploited sustainably, management should be continued 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*
Fishing mortality F2026/FMSY
Stock size B2027/BMSY
% B/BMSY change**
% advice change***
2026
2026
2027
2027
2026
(t)
(ratio)
(ratio)
(%)
(%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach: B2027/BMSY =Blim
53
0.26
0.3
38.7
40.5
Other scenarios
FMSY
192
1
0.26
20.2
407
F = F2025
278
1.53
0.23
4.5
632
F=F35% catch fractile
81
0.4
0.29
34.1
114
F = 0
0
0
0.32
47.9
-100
Symbol
Footnotes
*
Including recreational catches and dead discards
**
B/BMSY 2027 relative to B/BMSY 2026 (0.22).
***
Advice value for 2026 relative to the advice value for 2025 (38 tonnes)
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