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Whiting (Merlangius merlangus) in Subarea 4 and Division 7.d (North Sea and eastern English Channel)
StockCode
whg.27.47d
Assessment Year
2024
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
18694
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.25019720.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
*
ICES advises that when the MSY approach is applied, catches in 2025 should be no more than 237 008 tonnes. ICES notes the existence of a precautionary management plan, developed and adopted by one of the relevant management authorities for this stock.
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
Total projected landings
Total projected discards*
Total IBC*
Human Consumption catch
Total F**
F(projected landings)
F(projected discards)
F(IBC)***
SSB
% SSB change^
% TAC change^^
% Advice change^^^
2025
2025
2025
2025
2025
2025
2025
2025
2025
2026
2026
2025
2025
(t)
(t)
(t)
(t)
(t)
(ratio)
(ratio)
(ratio)
(ratio)
(t)
(%)
(%)
(%)
ICES Basis Advice
MSY approach: FMSY
237008
169064
66516
1428
235580
0.68
0.44
0.24
0.0059
191923
-47
148
85
Other scenarios
FMSY upper
237008
169064
66516
1428
235580
0.68
0.44
0.24
0.0059
191923
-47
148
85
FMSY lower
160599
114063
44856
1680
158918
0.46
0.29
0.161
0.0059
251539
-31
68
25
F = 0 (IBC only)
2202
0
0
2202
0
0.0059
0
0
0.0059
375191
3.3
-98
-98
F = F2024
29660
19810
7738
2112
27549
0.083
0.05
0.027
0.0059
353699
-2.7
-69
-77
0.75 × F2024†
22970
14994
5842
2134
20836
0.064
0.037
0.02
0.0059
358920
-1.22
-76
-82
1.25 × F2024†
36358
24631
9637
2090
34268
0.102
0.062
0.034
0.0059
348474
-4.1
-62
-72
Fpa
237008
169064
66516
1428
235580
0.68
0.44
0.24
0.0059
191923
-47
148
85
Flim
410666
294067
115743
856
409810
1.18
0.76
0.42
0.0059
56432
-84
330
220
SSB (2025) = Bpa = MSY Btrigger
268275
191571
75379
1325
266949
0.77
0.49
0.27
0.0059
167419
-54
181
109
SSB (2025) = Blim
329547
235676
92748
1123
328424
0.95
0.61
0.33
0.0059
119585
-67
245
157
Symbol
Footnotes
*
The split of catch between landings, discards, and industrial bycatch (IBC) in 2025 was done using recent (2021–2023) partial age-dependent fishing mortalities as a forecasting assumption.
**
Total F is calculated as the sum of partial fishing mortalities.
***
F (IBC) is assumed to be constant in all scenarios at status quo value.
†
Multiplier only applied to F (discards) and F (landings), with F (IBC) constant.
^
SSB 2026 relative to SSB 2025.
^^
Total catch 2025 relative to the TAC value 2024 in Subarea 4 and part of the 7.b-k TAC allocated to Division 7.d (95 596 tonnes; EU–Norway–UK, 2023)
^^^
Total catch 2025 relative to the advice value 2024 (128 290 tonnes).