Advice and Scenarios Database



Hake (Merluccius merluccius) in divisions 8.c and 9.a, Southern stock (Cantabrian Sea and Atlantic Iberian waters)
StockCode
hke.27.8c9a
Assessment Year
2017
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
8746
Link to Advice Sheet
https://doi.org/10.17895/ices.pub.3135






Catch scenarios


Basis
Total catch
Wanted catch*
Unwanted catch*
Ftotal
Fwanted
Funwanted
SSB
% SSB change**
% Advice change***
2018 2018 2018 2018 2018 2018 2019 2019 2019
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY 8561 7366 1195 0.25 0.22 0.03 38286 55 6
Other scenarios
F = 0 0 0 0 0 0 0 51997 111 -100
SSB (2019) = Blim 28905 24547 4358 1.55 1.32 0.23 8000 -68 259
SSB (2019) = Bpa = MSYBtrigger 26707 22740 3967 1.27 1.08 0.19 11100 -55 232
Flim 24320 20753 3567 1.05 0.9 0.15 14506 -41 202
Fpa 19981 17103 2878 0.75 0.64 0.11 20832 -15 148
F = F2017 18063 15478 2585 0.64 0.55 0.09 23643 -4 124
EU Recovery Plan^ 12098 10396 1702 0.38 0.33 0.05 32763 33 50




Symbol Footnotes
* “Wanted” and “unwanted” catch are used to describe fish that would be landed and discarded in the absence of the EU landing obligation, based on discard rates at length estimated by the assessment model for 2014–2016.
** SSB 2019 relative to SSB 2018.
*** Total catch in 2018 relative to the advised catch for 2017 (8049 t).
^ Applying a 10% reduction in F relative to F2017 corresponds to a total catch in 2018, which is more than 15% greater than the 2017 TAC. Therefore, ICES has calculated this option as corresponding to a total catch in 2018 equal to TAC2017 × 1.15.