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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
2018
Stock Category
4.14
Purpose
Advice
Published
Stock Assessment Key
9653
Link to Advice Sheet
https://doi.org/10.17895/ices.pub.4439
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 2019 and 2020 should be no more than 397 tonnes. If this stock is not under the Norwegian discard ban in 2019 and 2020 and discard rates do not change from the average of the period 2014–2016, this implies landings of no more than 389 tonnes.
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 L+ DD+SD
Dead removals L +DD
Landings (Wanted catch) L
Dead discards DD
Surviving discards SD
Harvest rate* For L+DD
% advice change **
2019
2019
2019
2019
2019
2019
2019
(t)
(t)
(t)
(t)
(t)
(%)
(%)
ICES Basis Advice
Advice for 2017 and 2018 -20%
397
395
389
6
2
1.23
-20
Other scenarios
0.5 × Average landings (2008–2017)
162
161
159
2
1
0.5
-67
Average landings (2008-2017)
325
323
318
5
2
1
-34
Advice for 2017 and 2018
496
494
486
7
2
1.53
0
Maximum landings
1214
1208
1190
18
6
3.8
145
MSY harvest rate
2427
2415
2379
36
12
7.5
389
Symbol
Footnotes
*
Calculated for dead removals.
**
Total catch 2019 and 2020 relative to advice value for 2017 and 2018 (496 t)
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