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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
2021
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
16794
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.7803
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 2018–2020, catches in 2022 should be no more than 1257 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 **
2022
2022
2022
2022
2022
2022
2022
(t)
(t)
(t)
(t)
(t)
(%)
(%)
ICES Basis Advice
MSY approach: FMSY × stock abundance 2022 / MSY Btrigger
1257
1214
1083
130
43
8.5
-19.4
Other scenarios
EU MAP^: FMSY× stock abundance 2022 / MSYBtrigger
1257
1214
1083
130
43
8.5
-19.4
EU MAP^: FMSYlower × stock abundance 2022 / MSYBtrigger
1008
973
868
104
35
6.8
-35
FMSY
1897
1831
1635
197
66
12.8
22
FMSY lower
1511
1459
1303
157
52
10.2
-3.1
F2020
1444
1394
1245
150
50
9.7
-7.4
Symbol
Footnotes
*
By number.
**
Advice values for 2022 are relative to the 2021 advice (MAP FMSY advice of 1560 tonnes).
^
EU multiannual plan (MAP) for the Western Waters and adjacent waters (EU, 2019).
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