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View Advice
Plaice (Pleuronectes platessa) in Division 7.d (eastern English Channel)
StockCode
ple.27.7d
Assessment Year
2019
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
11534
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.4871
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 the Western Waters is applied, catches from the Division 7.d plaice stock in 2020 that correspond to the F ranges are between 6545 tonnes and 12 029 tonnes. According to the MAP, catches higher than those corresponding to FMSY (9073 tonnes) can only be taken under conditions specified in the MAP, whilst the entire range is considered precautionary when applying the ICES advice rule.
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
Division 7.d plaice stock Total catch^
Division 7.d plaice stock Wanted catch*
Division 7.d plaice stock Unwanted catch*
Division 7.d plaice stock Ftotal
Division 7.d plaice stock Fwanted (ages 3–6)
Division 7.d plaice stock Funwanted (ages 3–6)
Division 7.d plaice stock SSB
Division 7.d plaice stock % SSB change **
Division 7.d plaice stock % change in wanted catch ***
Division 7.d plaice stock % advice change$
Plaice in Division 7.d # Total catch
Plaice in Division 7.d # Wanted catch*
Plaice in Division 7.d # Unwanted catch*
Plaice in Division 7.d # % change in wanted catch ^^
Plaice in Division 7.d # % change in the 7.d portion of the TAC ##
Plaice in Division 7.d # % advice change ###
2020
2020
2020
2020
2020
2020
2021
2021
2021
2021
2020
2020
2020
2021
2021
2021
(t)
(t)
(t)
(ratio)
(ratio)
(ratio)
(t)
(%)
(%)
(%)
(t)
(t)
(t)
(%)
(%)
(%)
ICES Basis Advice
EU MAP ^^^: FMSY
9073
4697
4376
0.25
0.115
0.135
41084
0.37
18
15.4
10687
5533
5155
10.6
36
15.9
F= MAP FMSY lower
6545
3389
3156
0.175
0.081
0.094
43874
7.2
-14.8
-16.8
7710
3992
3718
-20
-1.92
-16.4
F= MAP FMSY upper
12029
6225
5804
0.344
0.159
0.185
37864
-7.5
56
53
14170
7333
6837
47
80
54
Other scenarios
MSY approach: FMSY
9073
4697
4376
0.25
0.115
0.135
41084
0.37
18
15.4
10687
5533
5155
10.6
36
15.9
F = 0
0
0
0
0
0
0
51248
25
-100
-100
0
0
0
-100
-100
-100
Fpa
12510
6473
6037
0.36
0.166
0.194
37344
-8.8
63
59
14737
7625
7112
52
87
60
Flim
16468
8514
7954
0.5
0.23
0.27
33127
-19.1
114
109
19399
10029
9370
100
147
110
SSB (2021) = Blim
31231
16016
15215
1.22
0.56
0.66
18447
-55
300
300
36790
18867
17923
280
370
300
SSB (2021) = Bpa
23575
12156
11420
0.8
0.37
0.43
25826
-37
210
200
27771
14319
13452
186
250
200
SSB (2021) = MSYBtrigger
23575
12156
11420
0.8
0.37
0.43
25826
-37
210
200
27771
14319
13452
186
250
200
F = F2019
8498
4400
4099
0.23
0.107
0.125
41715
1.91
10.5
8.1
10011
5183
4828
3.6
27
8.5
Symbol
Footnotes
*
“Wanted” and “unwanted” catch are used to describe fish that would be landed and discarded in the absence of the EU landing obligation, based on discard rate estimates for 2016–2018.
**
SSB 2021 relative to SSB 2020.
***
Wanted catch in 2020 relative to the ICES estimates of landings in 2018 (3980 t) for the Division 7.d plaice stock.
#
All plaice in Division 7.d, including plaice originating from the North Sea and the western English Channel, according to a ratio calculated over the years 2003–2018: 15.1% of the plaice landed in Division 7.d is assumed to originate from the North Sea and the western English Channel, and this is added to the predicted values for the Division 7.d plaice stock. The ratio is applied to total catch, wanted catch, and unwanted catch.
##
Total catch in 2020 relative to the Division 7.d proportion of the TAC in 2019 (10 354 t), assuming the same proportion of the TAC is taken from Division 7.e as during 2003–2018.
###
Total catch in 2020 relative to advice value 2019 (9225 t) for plaice caught in Division 7.d.
^
Differences between the total catch and the sum of wanted and unwanted catches result from rounding.
^^
Wanted catch in 2020 relative to the ICES estimates of landings in 2018 (5 004 t) for plaice caught in Division 7.d.
^^^
EU multiannual plan (MAP) for the Western Waters (EU, 2019).
$
Total catch in 2020 relative to advice value 2019 (7864 t) for the Division 7.d plaice stock.