Catch scenarios

Basis	Division 7.d plaice stock Total catch^	Division 7.d plaice stock Wanted catch*	Division 7.d plaice stock Unwanted catch*	Division 7.d plaice stock Ftotal	Division 7.d plaice stock Fwanted	Division 7.d plaice stock Funwanted	Division 7.d plaice stock SSB	Division 7.d plaice stock % SSB change**	Division 7.d plaice stock % change in wanted catch***	Plaice in Division 7.d # Total catch	Plaice in Division 7.d # Wanted catch*	Plaice in Division 7.d # Unwanted catch*	Plaice in Division 7.d # % change in wanted catch^^	Plaice in Division 7.d # % change in the 7.d portion of the TAC ##
	2018	2018	2018	2018	2018	2018	2019	2019	2019	2018	2018	2018	2019	2019
	(t)	(t)	(t)	(ratio)	(ratio)	(ratio)	(t)	(%)	(%)	(t)	(t)	(t)	(%)	(%)
ICES Basis Advice
MSY approach: FMSY	10592	7132	3459	0.25	0.13	0.12	46483	-17	97	12378	8335	4042	80	62
Other scenarios
F = 0	0	0	0	0	0	0	57879	4	-100	0	0	0	-100	-100
Fpa	14602	9850	4752	0.36	0.187	0.173	42258	-24	172	17064	11511	5553	148	123
Flim	19212	12987	6225	0.5	0.26	0.24	37469	-33	259	22451	15177	7275	227	193
SSB (2019) = Blim	38522	26291	12231	1.35	0.7	0.65	18447	-67	627	45018	30724	14293	563	488
SSB (2019) = Bpa	30793	20932	9861	0.94	0.49	0.45	25826	-54	479	35986	24462	11524	427	370
SSB (2019) = MSYBtrigger	30793	20932	9861	0.94	0.49	0.45	25826	-54	479	35986	24462	11524	427	370
F = F2017	5908	3971	1937	0.133	0.069	0.064	51483	-8	10	6905	4640	2264	0	-10
A: Max.	13189			0.319			43802	-22
B: Min.	3595			0.079			54012	-4
C: HAD	5007			0.109			53909	-4
D: POK	7490			0.18			46978	-16
E: SQ effort	6338			0.144			50709	-9
F: Value	6394			0.144			51004	-9
G: range	9637			0.19			48978	-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, based on discard rate estimates for 2014–2016.
**	SSB 2019 relative to SSB 2018.
***	Wanted catch in 2018 relative to the ICES estimates of landings of the Division 7.d plaice stock in 2016 (3617.467 t).
#	All plaice in Division 7.d, including plaice originating from the North Sea and the western English Channel, according to a ratio calculated over the years 2003–2016: 14.42% of the plaice landed in Division 7.d is assumed to originate from the North Sea and the western English Channel, and this is added to the predicted values for the Division 7.d plaice stock. The ratio is applied to total catch, wanted catch, and unwanted catch.
##	Total catch in 2018 relative to the Division 7.d proportion of the TAC in 2017 (7657.594 t), assuming the same proportion of the TAC is taken from Division 7.e as during 2003–2016.
###	Maximum level of permissible bycatches when the advice is "no targeted fisheries and bycatches should be minimized".
^	Differences between the total catch and the sum of wanted and unwanted catches are due to rounding.
^^	Wanted catch in 2018 relative to the ICES estimates of landings of plaice in Division 7.d in 2016 (4637.567 t).
A.	Maximum scenario: Each fleet stops fishing when its last stock share is exhausted.
B.	Minimum scenario: Each fleet stops fishing when its first stock share is exhausted.
C.	HAD: Each fleet stops fishing when its individual haddock share is exhausted.
D.	POK: Each fleet stops fishing when its individual saithe share is exhauste
E.	SQ (status quo) effort scenario: The effort of each fleet in 2017 and 2018 is as in 2016.
F.	Value scenario: The effort of each fleet is equal to the weighted average of the efforts required to catch the fleet’s quota share of each of the stocks, where the weights are the relative catch values of each stock in the fleet’s portfolio.
G.	Range scenario: where the potential for TAC mismatches in 2018 are minimized within the FMSY range, for the demersal fish stocks for which such a range is available (cod.27.47d20; had.27.46a20; pok.27.3a46; ple.27.420; ple.27.7d; sol.27.4; sol.27.7d).