Catch scenarios

Basis	Total catch	Ftotal	SSB	% SSB change *	% TAC change ***
	2020	2020	2021	2021	2020
	(t)	(ratio)	(t)	(%)	(%)
ICES Basis Advice
MSY approach: F = 0	0	0	3765	87	-100
Other scenarios
FMSY × SSB(2020)/MSY Btrigger	70	0.029	3679	83	-96
FMSY lower: FMSY lower × SSB(2020) / MSYBtrigger	48	0.02	3705	84	-97
FMSY upper: FMSY upper × SSB(2020) / MSYBtrigger	98	0.041	3644	81	-95
F = FMSY lower	446	0.2	3218	60	-75
F = FMSY	623	0.29	3002	49	-66
Fpa	1064	0.55	2469	23	-42
F = FMSY upper	839	0.41	2741	36	-54
F = F2019	1279	0.7	2212	9.9	-30
Flim	1371	0.77	2103	4.5	-25
SSB(2021) = Blim **
SSB(2021) = Bpa = MSYBtrigger **

Symbol	Footnotes
*	SSB 2021 relative to SSB 2020.
**	The Blim, Bpa, and MSY Btrigger options were left blank because Blim, Bpa, and MSYBtrigger cannot be achieved in 2021, even with zero advice.
***	Total catch in 2020 relative to TAC in 2019 (1735tonnes).