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Norway lobster (Nephrops norvegicus) in divisions 7.f and 7.g, Functional Unit 22 (Celtic Sea, Bristol Channel)
StockCode
nep.fu.22
Assessment Year
2023
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
18412
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.21908412.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 MSY approach is applied, and assuming that discard rates and fishery selection patterns do not change from the average of the years 2020–2022, catches in 2024 should be no more than 1912 tonnes. To ensure that the stock in Functional Unit (FU) 22 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 7. ICES considers this plan to be precautionary when implemented at the FU level.
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 **
2024
2024
2024
2024
2024
2024
2024
(t)
(t)
(t)
(t)
(t)
(%)
(%)
ICES Basis Advice
MSY approach: FMSY × Stock abundance 2024 / MSY Btrigger
1912
1858
1695
163
54
10
-25
Other scenarios
FMSYupper × Stock abundance 2024 / MSYBtrigger***
1526
1482
1352
130
43
8
-40
FMSY
2441
2372
2164
208
69
12.8
-4.2
FMSY lower
1945
1890
1724
166
55
10.2
-24
FMSY upper***
2441
2372
2164
208
69
12.8
-4.2
F2022
1220
1185
1081
104
35
6.4
-52
Symbol
Footnotes
*
By number.
**
Advice values for2024 are relative to the2023 advice (FMSY advice of 2548 tonnes).
***
FMSY upper=FMSYfor this stock.
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