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Norway lobster (Nephrops norvegicus) in Division 6.a, Functional Unit 13 (West of Scotland, the Firth of Clyde and Sound of Jura)
StockCode
nep.fu.13
Assessment Year
2019
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
13200
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.4790
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 2020 that correspond to the F ranges in the MAP are between 3924 tonnes and 5861 tonnes (3428–5227 tonnes for the Firth of Clyde and 496–634 tonnes for the Sound of Jura). The entire range is considered precautionary when applying the ICES advice rule. To ensure that Nephrops stocks are exploited sustainably, management of Nephrops should be implemented at the functional unit level. In this particular functional unit (FU), additional measures should be implemented to ensure that landings taken in each subarea (the Firth of Clyde and the Sound of Jura) are in line with the advice.
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**
2020
2020
2020
2020
2020
2020
2020
(t)
(t)
(t)
(t)
(t)
(%)
(%)
ICES Basis Advice
EU MAP ^: FMSY
5227
5159
4955
204
68
15.1
-12.7
F= MAP FMSY lower
3428
3383
3249
134
45
9.9
-43
F = MAP FMSY upper***
5227
5159
4955
204
68
15.1
-12.7
Other scenarios
MSY approach
5227
5159
4955
204
68
15.1
-12.7
F2018
3842
3792
3642
150
50
11.1
-36
Symbol
Footnotes
*
By number.
**
Advice value 2020 relative to the advice value 2019 (5990 tonnes).
***
FMSY upper = FMSY for this stock.
^
EU multiannual plan (MAP) for the Western waters and adjacent waters (EU, 2019).
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