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Norway lobster (Nephrops norvegicus) in Division 4.b, Functional Unit 33 (central North Sea, Horn’s Reef)
StockCode (Assessment Component)
nep.fu.33
Assessment Year
2026
Stock Category
4.14
Purpose
Advice
Published
Stock Assessment Key
25981
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.30932228
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 precautionary approach is applied, landings in each of the years 2027 and 2028 should be no more than 564 tonnes. ICES cannot quantify the corresponding total catches. To ensure that the stock in Functional Unit (FU) 33 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
Projected landings
% harvest rate *
% advice change **
2028
2028
2028
(t)
(%)
(%)
ICES Basis Advice
Average landings (2023–2025) x 0.8 (PA buffer)
564
3.7
-42
Other scenarios
Average landings (2016–2025) -20% cap
901
5.8
-7.3
Recent average landings (2023–2025)
705
4.6
-27
Advice for 2025 & 2026-20% cap
778
5
-20
Advice for 2025 & 2026
972
6.3
0
Average landings (2016-2025)
1126
7.3
15.8
Maximum sustainable yield (MSY) proxy harvest rate
1157
7.5
19
Advice for 2025 & 2026 +20% cap
1166
7.6
20
Maximum landings
1636
10.6
68
Symbol
Footnotes
*
Based on an assumed maximum discard rate of 25% and mean discard weight of 26.01grammes.
**
Advice basis values for 2027 and 2028 relative to the advice value for 2025 and 2026 (landings advice of 972tonnes).
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