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View Advice
Plaice (Pleuronectes platessa) in Division 7.d (eastern English Channel)
StockCode
ple.27.7d
Assessment Year
2020
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
13744
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.5873
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 2021 that correspond to the F ranges are between 6066 tonnes and 11 130 tonnes. According to the MAP, catches higher than those corresponding to FMSY (8402 tonnes) can only be taken under conditions specified in the MAP, whilst the entire range is considered precautionary when applying the ICES advice rule. Management should be implemented at the stock 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
Division 7.d plaice stock Total catch^
Division 7.d plaice stock Projected landings *
Division 7.d plaice stock Projected discards **
Division 7.d plaice stock Ftotal (ages 3-6)
Division 7.d plaice stock Fprojected landings (ages 3–6)
Division 7.d plaice stock Fprojected discards (ages 3–6)
Division 7.d plaice stock SSB
Division 7.d plaice stock % SSB change ***
Division 7.d plaice stock % change in projected catches ****
Division 7.d plaice stock % advice change $
Plaice in Division 7.d # Total catch
Plaice in Division 7.d # Projected landings*
Plaice in Division 7.d # Projected discards**
Plaice in Division 7.d # % change in projected catches ^^
Plaice in Division 7.d # % advice change ##
2021
2021
2021
2021
2021
2021
2022
2022
2022
2022
2021
2021
2021
2022
2022
(t)
(t)
(t)
(ratio)
(ratio)
(ratio)
(t)
(%)
(%)
(%)
(t)
(t)
(t)
(%)
(%)
ICES Basis Advice
EU MAP ^^^: FMSY
8402
3424
4978
0.25
0.088
0.162
39205
2.7
-7.1
-7.4
9959
4059
5900
-7.7
-6.8
F= MAP FMSY lower$$
6066
2470
3596
0.175
0.062
0.113
41913
9.7
-33
-7.3
7190
2928
4263
-33
-6.7
F= MAP FMSY upper$$
11130
4540
6589
0.344
0.121
0.223
36088
-5.5
23
-7.5
13192
5382
7811
22
-6.9
Other scenarios
MSY approach: FMSY
8402
3424
4978
0.25
0.088
0.162
39205
2.7
-7.1
-7.4
9959
4059
5900
-7.7
-6.8
F = 0
0
0
0
0
0
0
49099
29
-100
-100
0
0
0
-100
-100
Fpa
11573
4722
6851
0.36
0.127
0.233
35586
-6.8
28
28
13718
5597
8121
27
28
Flim
15216
6214
9002
0.5
0.177
0.323
31521
-17.5
68
68
18036
7366
10670
67
69
SSB (2022) = Blim
27772
11341
16430
1.15
0.407
0.745
18447
-52
207
206
32918
13443
19475
205
208
SSB (2022) = Bpa
20495
8377
12118
0.736
0.26
0.476
25826
-32
127
126
24293
9930
14364
125
127
SSB (2022) = MSY Btrigger
20495
8377
12118
0.736
0.26
0.476
25826
-32
127
126
24293
9930
14364
125
127
F = F2020
9803
3997
5806
0.297
0.105
0.192
37597
-1.55
8.4
8
11620
4738
6882
7.7
8.7
Symbol
Footnotes
*
Marketable landings.
**
Including BMS landings, assuming recent discard rate.
***
SSB 2022 relative to SSB 2021.
****
Projected catches in 2021 relative to the ICES estimates of catches in 2019 (9047 tonnes) 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 2003–2019: 15.63% 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, projected landings, and projected discards.
##
Total catch in 2021 relative to the advice value 2020 (10 687 tonnes) for plaice caught in Division 7.d.
###
Advice value this year relative to the advice value last year for the MAP FMSY lower (7710 tonnes) and MAP FMSY upper (13 192 tonnes) for plaice caught in Division 7.d.
^
Differences between total catch and the sum of projected landings and discards result from rounding.
^^
Projected catches in 2021 relative to the ICES estimates of catches in 2019 (10 785 tonnes) for plaice caught in Division 7.d.
^^^
EU multiannual plan (MAP) for the Western Waters (EU, 2020).
$
Total catch in 2021 relative to the advice value 2020 (9073 tonnes) for Division 7.d plaice stock.
$$
Advice value this year relative to the advice value last year for the MAP FMSY lower (6545 tonnes) and MAP FMSY upper (12 029 tonnes) (in Division 7.d plaice stock % advice change colulmn)