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Norway lobster (Nephrops norvegicus) in Division 6.a, Functional Unit 13 (West of Scotland, the Firth of Clyde and Sound of Jura)
StockCode
nep.fu.13
Assessment Year
2024
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
19271
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.25019366.v1
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 2021–2023, catches in 2025 should be no more than 4 924 tonnes (4 219 tonnes for Firth of Clyde and 705 tonnes for Sound of Jura). To ensure that the stock in Functional Unit (FU) 13 is exploited sustainably, management should be implemented at the FU level. In this particular FU, additional measures should be implemented to ensure that landings taken in each component (the Firth of Clyde and the Sound of Jura) are in line with the advice. ICES notes the existence of a management plan, developed and adopted by one of the relevant management authorities for Subarea 6.
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**
2025
2025
2025
2025
2025
2025
2025
(t)
(t)
(t)
(t)
(t)
(t)
(%)
ICES Basis Advice
MSY approach: FMSY
4219
4156
3968
188
63
15.1
9
Other scenarios
F= MAP^ FMSY lower
2765
2724
2601
123
41
9.9
-29
F= MAP^ FMSY upper
4219
4156
3968
188
63
15.1
9
F2023
3967
3908
3731
177
59
14.2
2.5
Symbol
Footnotes
*
By number
**
Advice values for 2025 are relative to the 2024 advice (FMSY advice of 3870 tonnes for the Firth of Clyde, and 657 tonnes for the Sound of Jura).
^
EU multiannual plan (MAP) for the Western Waters (EU, 2019)
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