Advice and Scenarios Database



Cuckoo ray (Leucoraja naevus) in subareas 6-7 and divisions 8.a-b and 8.d (West of Scotland, southern Celtic Seas, and western English Channel, Bay of Biscay)
StockCode (Assessment Component)
rjn.27.678abd
Assessment Year
2024
Stock Category
2
Purpose
Advice
Published
Stock Assessment Key
19118
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.25019600.v1






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) 7799 0.82 1.55 -12.1 -3.3
Other scenarios
FMSY 9351 1 1.49 -15.6 16
F=F2024 2147 0.21 1.77 0.56 -73
F=0 0 0 1.86 5.3 -100
Landings = 10th percentile of predicted landings distribution under F=FMSY 7471 0.78 1.56 -11.3 -7.4
Landings = 20th percentile of predicted landings distribution under F=FMSY 8069 0.85 1.54 -12.7 0.066
Landings = 35th percentile of predicted landings distribution under F=FMSY 8741 0.93 1.51 -14.2 8.4




Symbol Footnotes
* Biomass is at 01 January.
** Percentage change of B2026/BMSY relative to B2025/BMSY (1.76).
*** Advice value for 2025 relative to landings advice value for 2024 (8064 tonnes).