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Norway lobster (Nephrops norvegicus) in divisions 7.a, 7.g, and 7.j, Functional Unit 19 (Irish Sea, Celtic Sea, eastern part of southwest of Ireland)
StockCode
nep.fu.19
Assessment Year
2020
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
14024
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.5869
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 EU multiannual plan (MAP) for Western Waters and adjacent waters is applied, catches in 2021 that correspond to the F ranges in the MAP are between 531 tonnes and 595 tonnes, assuming recent discard rates. The entire range is considered precautionary when applying the ICES advice rule. To ensure that the stock in Functional Unit (FU) 19 is exploited sustainably, management should be implemented at the functional unit level. Note: This advice sheet is abbreviated due to the COVID-19 disruption. The previous advice issued for 2020 is attached as Annex 1.
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**
2021
2021
2021
2021
2021
2021
2021
(t)
(t)
(t)
(t)
(t)
(%)
(%)
ICES Basis Advice
MSY approach; F = EU MAP^: FMSY × Stock abundance 2021 / MSY Btrigger
595
556
439
117
39
6.9
-29
MAP FMSY lower × Stock abundance 2021 / MSY Btrigger
531
496
392
105
35
6.2
-29
MAP FMSYupper × Stock abundance 2021 / MSYBtrigger
595
556
439
117
39
6.9
-29
Other scenarios
F = MAP FMSY
801
748
590
158
53
9.3
-4.5
F = MAP FMSY lower
714
668
527
141
47
8.3
-4.7
F = MAP FMSY upper***
801
748
590
158
53
9.3
-4.5
F2019
281
262
207
55
18
3.3
-67
Symbol
Footnotes
*
By number.
**
Advice value for 2021 relative to the corresponding 2020 values (MAP advice value of 839, 749, and 839 tonnes, respectively; other values are relative to FMSY).
***
FMSY upper = FMSY for this stock.
^
EU multiannual plan (MAP) for Western Waters (EU, 2019).
^^
Represents the amount that would normally be discarded.
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