Advice and Scenarios Database



Porbeagle (Lamna nasus) in subareas 1-10, 12 and 14 (the Northeast Atlantic and adjacent waters)
StockCode
por.27.nea
Assessment Year
2022
Stock Category
2
Purpose
Advice
Published
Stock Assessment Key
17402
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.19754584.v1






Catch scenarios


Basis
Total catch
Projected catches *
Fishing mortality F2023/FMSY
Probability of SSB (2053) > Blim (%)
Stock size ** B2024/BMSY
% B change ***
% Advice change^
2023 2023 2023 2053 2023 2024 2023
(t) (t) (ratio) (%) (%) (%) (%)
ICES Basis Advice
MSY approach (15th percentile of predicted catch distribution under F = FMSY) 219 0.35 95 0.53 1.06
Other scenarios
F=FMSY 617 1 67 0.51 1.02
MSY approach (35th percentile of predicted catch distribution under F=FMSY) 422 0.68 79 0.52 1.04
MSY approach (20th percentile of predicted catch distribution under F=FMSY) 269 0.43 92 0.53 1.05
MSY approach (10th percentile of predicted catch distribution under F=FMSY) 175 0.28 98 0.53 1.06
F=F2022=Fsq 6 0.01 100 0.54 1.07
F=0 0 0 100 0.54 1.07




Symbol Footnotes
* The information available does not allow an estimate of possible discards.
** Biomass as of 1 January
*** Biomass 2024 relative to biomass 2023
^ Previous advice was zero catch in 2020–2023 (ICES, 2019). The advice for 2023 and 2024 is a non-zero catch because the advice is now based on the MSY approach using a category 2 assessment method and forecast after being benchmarked (ICES, 2022c).