News
Events
Calendar
Library
SharePoint Login
Admin
About ICES
Who we are
How we work
Global cooperation
Project collaborations
ICES Awards
Jobs at ICES
Science
Expert groups
Science priorities
Publications
Data
Dataset Collections
Data Portals
Data Tools
Assessment Tools
Maps
Vocabularies
Guidelines and Policy
Advice
Latest advice
Ecosystem overviews
Fisheries overviews
ICES ecosystems and advisory areas
Join us
Why join us
Join our expert groups
Become an observer
Join our advisory process
Dataset Collections
Data Portals
Data Tools
Assessment Tools
Maps
Vocabularies
Guidelines and Policy
Advice and Scenarios Database
Print it
Send to
Share it
Advicelist
View Advice
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 F2025/FMSY
Stock size B2026/BMSY *
% B change **
% advice change***
2025
2025
2026
2026
2026
(t)
(ratio)
(ratio)
(%)
(%)
ICES Basis Advice
Maximum sustainable yield (MSY) approach (15th percentile of predicted landings distribution under F = FMSY)
1406
0.75
1.22
0.68
-3.2
Other scenarios
FMSY
1847
1
1.17
-2.8
27
F=F2024
1305
0.69
1.23
1.48
-10.1
F=0
0
0
1.35
11.7
-100
Landings = 10th percentile of predicted landings distribution under F=FMSY
1319
0.7
1.22
1.37
-9.2
Landings = 20th percentile of predicted landings distribution under F=FMSY
1480
0.79
1.21
0.107
1.93
Landings = 35th percentile of predicted landings distribution under F=FMSY
1668
0.9
1.19
-1.38
14.9
Symbol
Footnotes
*
Biomass is at 01 January.
**
Percentage change of B2026/BMSY relative to B2025/BMSY.
***
Advice value for 2025 relative to landings advice value for 2024 (1452 tonnes).
Print it
Send to
