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Norway lobster (Nephrops norvegicus) in Division 4.a, Functional Unit 32 (northern North Sea, Norway Deep)
StockCode
nep.fu.32
Assessment Year
2020
Stock Category
4.14
Purpose
Advice
Published
Stock Assessment Key
13974
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.5802
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 precautionary approach is applied, catches in each of the years 2021 and 2022 should be no more than 381 tonnes. If this stock is not under the Norwegian discard ban in 2021 and 2022, and discard rates do not change from the recent average, this implies landings of no more than 379 tonnes. Note: This advice sheet is abbreviated due to the COVID-19 disruption. The previous advice issued for 2019 and 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
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
(Advice for 2019 and 2020 +20% cap) –PA buffer
381
380
379
1.3
0.4
1.41
-4
Other scenarios
0.5×average landings (2010–2019)
118
118
118
0
0
0.44
-70
Average landings (2010-2019)
236
236
235
1
0
0.87
-40
Advice for 2019 and 2020
397
396
395
1
1
1.47
0
Maximum landings
1196
1194
1190
4
2
4.4
201
MSY proxy harvest rate
2029
2027
2020
7
2
7.5
411
Symbol
Footnotes
*
Calculated for dead removals.
**
Total catch 2021 and 2022 relative to the advice value for 2019 and 2020 (397 tonnes).
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