Advice and Scenarios Database



Spotted ray (Raja montagui) in Subarea 4 and divisions 3.a and 7.d (North Sea, Skagerrak, Kattegat, and eastern English Channel)
StockCode (Assessment Component)
rjm.27.3a47d
Assessment Year
2023
Stock Category
2
Purpose
Advice
Published
Stock Assessment Key
18340
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.21856905.v1






Catch scenarios


Basis
Total catch***
Fishing mortality F2024/FMSY
Stock size B2025/BMSY
% B change*
% advice change**
2024 2024 2025 2025 2024
(t) (ratio) (ratio) (%) (%)
ICES Basis Advice
MSY approach (15th percentile of predicted catch distribution under F = FMSY) 1517 0.73 1.51 -7.7 554
Other scenarios
FMSY 2027 1 1.42 -13 774
F=F2023 673 0.31 1.66 1.16 190
F=0 0 0 1.77 8.3 -100
F = FMSY fractile 10 1418 0.68 1.53 -6.7 511
F = FMSY fractile 20 1601 0.77 1.5 -8.6 590
F = FMSY fractile 35 1818 0.89 1.46 -11 684




Symbol Footnotes
* Percentage change of B2025/BMSY relative to B2024/BMSY
** Advice value for 2024 relative to the landings advice value for 2022 and 2023 (232 tonnes).
*** ICES cannot quantify how any increase in catches may impact discard rates for this stock.