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
2018
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
9763
Link to Advice Sheet
https://doi.org/10.17895/ices.pub.4463






Catch scenarios


Basis
Total catch
Wanted catch*
Unwanted catch*^
Ftotal
Fwanted
Funwanted
SSB
% SSB change**
% Advice change***
2019 2019 2019 2019 2019 2019 2020 2020 2020
(t) (t) (t) (ratio) (ratio) (ratio) (t) (%) (%)
ICES Basis Advice
MSY approach: FMSY 142240 128236 14004 0.28 0.23 0.052 365492 5.5 23
Other scenarios
FMSY lower 96792 87371 9422 0.18 0.147 0.033 408019 17.7 -16.1
FMSY upper 208200 187317 20883 0.45 0.37 0.083 303739 -12.4 81
F = 0 0 0 0 0 0 0 498590 44 -100
Fpa 262175 235410 26765 0.62 0.51 0.115 253142 -27 127
Flim 324439 290502 33937 0.87 0.71 0.161 194612 -44 181
SSB (2020) = Blim 491220 433027 58193 2.8 2.3 0.52 32039 -91 326
SSB (2020) = Bpa 479239 423457 55782 2.4 1.95 0.44 44977 -87 316
SSB (2020) = MSYBtrigger 479239 423457 55782 2.4 1.95 0.44 44977 -87 316
F = F2018 122397 110408 11989 0.23 0.191 0.044 384060 10.8 6.1
EU Recovery Plan^^ 129168 116494 12674 0.25 0.2 0.046 377724 9 12




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 2020 relative to SSB 2019.
*** Total catch 2019 relative to the catch advice for 2018 (115 335 tonnes).
^ Unwanted catch includes forecast unwanted catch (discards included in the assessment) and additional unwanted catch (the discards that were not included in the assessment, amounting to approximately 2.8% of the total catch).
^^ Catch option corresponds to F2018 = 0.25.