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Norway lobster (Nephrops norvegicus) in Division 4.a, Functional Unit 7 (northern North Sea, Fladen Ground)
StockCode
nep.fu.7
Assessment Year
2019
Stock Category
1
Purpose
InitAdvice
Published
Stock Assessment Key
10452
Link to Advice Sheet
NA - The advice link for key 10452 was not found!
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
*
Please note: This advice was updated in November 2019 (ICES, 2019b) ICES advises that when the EU multiannual plan (MAP) for the North Sea is applied, catches in 2020 that correspond to the F ranges in the plan are between 11 582 tonnes and 13 162 tonnes. The entire range is considered precautionary when applying the ICES advice rule. To ensure that the stock in Functional Unit (FU) 7 is exploited sustainably, management should be implemented at the functional unit level. In recent years, the catch in FU 7 has been lower than advised, and if the difference is transferred to other FUs, this could result in non-precautionary exploitation of those FUs.
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
13162
13051
12719
332
111
7.5
-0.121
F = MAP FMSY lower
11582
11485
11193
292
97
6.6
-12.1
F = MAPFMSY upper ***
13162
13051
12719
332
111
7.5
-0.121
Other scenarios
MSY approach
13162
13051
12719
332
111
7.5
-0.121
F2016–2018
4211
4176
4070
106
35
2.4
-68
F2018
4913
4872
4748
124
41
2.8
-63
F35%SpR
19655
19490
18994
496
165
11.2
49
Fmax
28780
28538
27812
726
242
16.4
118
Symbol
Footnotes
*
Calculated for dead removals.
**
Total catch 2020 relative to the FMSY advice value 2019 (13 178 t).
***
FMSY upper = FMSY for this stock.
^
EU multiannual plan (MAP) for the North Sea (EU, 2018).
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