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Norway lobster (Nephrops norvegicus) in Division 4.b, Functional Unit 8 (central North Sea, Firth of Forth)
StockCode
nep.fu.8
Assessment Year
2024
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
19210
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.25019420.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 2 079 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**
2025
2025
2025
2025
2025
2025
2025
(t)
(t)
(t)
(t)
(t)
(%)
(%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach: FMSY
2079
2051
1966
85
28
16.3
-34
Other scenarios
F0.1
1199
1183
1134
49
16
9.4
-62
F = MAP^: FMSY upper
2079
2051
1966
85
28
16.3
-34
F = MAP^: FMSY lower
1352
1334
1279
55
18
10.6
-57
F = F2021-2023
1620
1598
1532
66
22
12.7
-48
F35SpR
1620
1598
1532
66
22
12.7
-48
F = F2023
1870
1844
1767
77
26
14.6
-40
Symbol
Footnotes
*
Calculated for dead removals.
**
Advice basis values for 2025 relative to the 2024 advice values (FMSY catch advice of 3129tonnes).
^
EU multiannual plan (MAP) for the North Sea (EU, 2018).
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