Advice and Scenarios Database



Hake (Merluccius merluccius) in subareas 4, 6, and 7, and divisions 3.a, 8.a-b, and 8.d, Northern stock (Greater North Sea, Celtic Seas, and the northern Bay of Biscay)
StockCode
hke.27.3a46-8abd
Assessment Year
2017
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
8988
Link to Advice Sheet
https://doi.org/10.17895/ices.pub.3134






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) (kg) (%) (%)
ICES Basis Advice
MSY approach: FMSY 115335 104060 11275 0.28 0.233 0.047 295193 10 -7
Other scenarios
F = 0 0 0 0 0 0 0 401929 50 -100
Fpa 211827 190172 21655 0.62 0.515 0.105 206120 -23 71
Flim 261716 234150 27566 0.87 0.723 0.147 160047 -40 111
SSB (2019) = Blim 383469 337722 45746 2.293 1.904 0.389 44975 -83 210
SSB (2019) = Bpa 395825 347392 48433 2.731 2.268 0.463 32001 -88 220
SSB (2019) = MSYBtrigger 395825 347392 48433 2.731 2.268 0.463 32001 -88 220
F = F2017 108119 97580 10540 0.259 0.215 0.044 301860 13 -13
EU Recovery Plan^^ 104736 94539 10196 0.25 0.208 0.042 304987 14 -15




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.
** SSB 2019 relative to SSB 2018.
*** Total catch 2018 relative to the catch advice for 2017 (123 777 t).
^ Unwanted catch includes forecasted unwanted catch (discards included in the assessment) and additional unwanted catch (the discards that were not included in the assessment, amounting to approximately 2.6% of the total catch).
^^ Catch option corresponds to F(2018) = 0.25.