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Thornback ray (Raja clavata) in Division 9.a (Atlantic Iberian waters)
StockCode
rjc.27.9a
Assessment Year
2024
Stock Category
2
Purpose
Advice
Published
Stock Assessment Key
19125
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.25019531
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 maximum sustainable yield (MSY) approach is applied, landings in 2025 and 2026 should be no more than 1 406 and 1 415 tonnes, respectively. ICES cannot quantify the corresponding catches. Management of the catches of skates and rays under a combined TAC prevents effective control of single-stock exploitation rates and could lead to overexploitation of some 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 landings
Fishing mortality F2026/FMSY
Stock size B2027/BMSY *
% B change **
% advice change***
2026
2026
2027
2027
2027
(t)
(ratio)
(ratio)
(%)
(%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach (15th percentile of predicted landings distribution under F = FMSY)
1415
0.75
1.22
0.57
0.64
Other scenarios
FMSY
1800
1
1.15
-5.7
28
F=F2024
1322
0.69
1.24
2
-6
F=0
0
0
1.48
21
-100
Landings = 10th percentile of predicted landings distribution under F=FMSY
1336
0.7
1.24
1.82
-5
Landings = 20th percentile of predicted landings distribution under F=FMSY
1481
0.79
1.21
-0.49
5.3
Landings = 35th percentile of predicted landings distribution under F=FMSY
1647
0.9
1.18
-3.2
17.1
Symbol
Footnotes
*
Biomass is at 01 January.
**
Percentage change of B2027/BMSY relative to B2026/BMSY.
***
Advice value for 2026 relative to landings advice value for 2025 (1406 tonnes).
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