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Megrim (Lepidorhombus whiffiagonis) in divisions 7.b-k, 8.a-b, and 8.d (west and southwest of Ireland, Bay of Biscay)
StockCode
meg.27.7b-k8abd
Assessment Year
2022
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
17377
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.21333687.v1
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: the present advice replaces the advice given in June 2022. ICES advises that when the MSY approach is applied, catches in 2023 should be no more than 23 596 tonnes. ICES notes the existence of a precautionary management plan, developed and adopted by one of the relevant management authorities for this stock. Management of catches of the two megrim species—megrim (Lepidorhombus whiffiagonis) and four-spot megrim (Lepidorhombus boscii)—under a combined species TAC prevents effective control of the single-species exploitation rates and could lead to the overexploitation of either species.
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
Projected landings*
Projected discards**(2023)
Fages 3–6
SSB (2024)
% SSB
% advice change^
2023
2023
2023
2023
2024
2024
2023
(t)
(t)
(t)
(ratio)
(t)
(%)
(%)
ICES Basis Advice
MSY approach: FMSY
23596
20264
3332
0.23
90976
-5.4
2.8
Other scenarios
EU MAP^^ = FMSY
23596
20264
3332
0.23
90976
-5.4
2.8
F = MAP^^ FMSYlower
15101
12982
2119
0.14
99893
3.9
-34
F = MAP^^ FMSYupper
38191
32733
5457
0.41
75788
-21
66
F = 0
0
0
0
0
115855
20
-100
Fpa
39638
33966
5672
0.43
74293
-23
73
Flim
50197
42939
7258
0.591
63458
-34
119
SSB (2024) = Blim
78477
66677
11800
1.241
35398
-63
242
SSB (2024) = Bpa
73241
62327
10914
1.084
40444
-58
219
SSB(2024)=MSYBtrigger
73241
62327
10914
1.084
40444
-58
220
SSB (2024) = SSB (2023)
18629
16008
2621
0.176
96184
0
-18.9
F = F2022
19945
17136
2809
0.19
94803
-1.44
-13.1
Symbol
Footnotes
*
Marketable landings, assuming recent discard rate.
**
Including BMS landings (EU stocks), assuming recent discard rate.
***
SSB 2024 relative to SSB 2023.
^
Advice value for 2023 relative to advice value for 2022 (22 964 tonnes).
^^
EU multiannual plan (MAP) for the Western Waters (EU, 2019).