Advice and Scenarios Database



Whiting (Merlangius merlangus) in divisions 7.b-c and 7.e-k (southern Celtic Seas and eastern English Channel)
StockCode
whg.27.7b-ce-k
Assessment Year
2017
Stock Category
1
Purpose
Advice
Published
Stock Assessment Key
8797
Link to Advice Sheet
https://doi.org/10.17895/ices.pub.3269






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 19429 13759 5670 0.52 0.36 0.162 46685 -4.3
Other scenarios
F = 0 0 0 0 0 0 0 63499 30
Fpa 26923 18784 8139 0.8 0.55 0.25 40416 -17
Flim 33753 23165 10589 1.12 0.77 0.35 34852 -28
SSB (2019) = Blim 46510 30624 15886 2 1.38 0.625 25000 -49
SSB (2019) = Bpa 33569 23050 10520 1.11 0.77 0.35 35000 -28
SSB (2019) = MSY Btrigger 33569 23050 10520 1.11 0.77 0.35 35000 -28
F = F2017 16640 11842 4798 0.43 0.3 0.134 49055 0.6
Mixed fisheries options
A: Max. 19595 0.52 46544 -4.6
B: Min. 10064 0.24 54705 12
C: Stock 19548 0.52 46584 -4.5
D: SQ effort 16640 0.43 49055 0.6
E: Value 16174 0.42 49452 1.4
F: Range 13348 0.33 51873 6.4




Symbol Footnotes
* “Wanted” and “unwanted” catch are used to describe fish that would be landed and discarded, respectively, in the absence of the EU landing obligation.
** SSB 2019 relative to SSB 2018.