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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
2018
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
10156
Link to Advice Sheet
https://doi.org/10.17895/ices.pub.4586
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 2015–2017, catches in 2019 should be no more than 173 tonnes. To ensure that the stock in Functional Unit 19 is exploited sustainably, management should be implemented at the functional unit 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 WC + DUC + SUC
Dead removals WC + DUC
Wanted catch WC
Dead unwanted catch DUC
Surviving unwanted catch SUC
Harvest rate * % for WC + DUC
% advice change **
2019
2019
2019
2019
2019
2019
2019
(t)
(t)
(t)
(t)
(t)
(%)
(%)
ICES Basis Advice
MSY approach; F = FMSY × (Stock Abundance 2019)/MSY Btrigger
173
162
130
33
11
3.8
-85.5
Other scenarios
FMSY
423
397
317
80
27
9.3
-64.5
FMSY lower
378
354
283
71
24
8.3
-68.3
FMSY lower × (Stock Abundance 2019)/MSY Btrigger
155
145
116
29
10
3.4
-87
FMSY upper***
423
397
317
80
27
9.3
-64.5
FMSY upper × (Stock Abundance 2019)/MSYBtrigger
173
162
130
33
11
3.8
-85.5
F2017
198
186
149
37
12
4.4
-83.2
Symbol
Footnotes
*
By number.
**
Advice value 2019 relative to the advice value 2018.
***
FMSY upper = FMSY for this stock.
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