Witch in Subarea 4 and divisions 3.a and 7.d. Annual catch scenarios. All weights are in tonnes.

Total catch (2023) Projected landings (2023) Projected discards (2023) Ftotal ages 4-8 (2022 & 2023) Flandings (2023) Fdiscards (2023) SSB (2023) SSB (2024) % SSB change % Advice change

MSY approach: Fmsy (AR)1198 1099 99 0.116 0.113 0.003 4396 5952 35.0 -0.7
FMSY upper (AR)1603 1467 136 0.158 0.154 0.004 4314 5669 33.0 33.0
FMSY lower (AR)830 760 70 0.079 0.077 0.002 4467 6234 37.0 -31.0
F = 00 0 0 0.000 0.000 0.000 4645 6894 43.0 -100.0
Fpa2584 2361 223 0.270 0.260 0.007 4113 4994 26.0 114.0
Flim3119 2845 274 0.330 0.320 0.009 4003 4651 23.0 159.0
Fsq2922 2666 256 0.310 0.300 0.008 4042 4774 24.0 142.0
SSB (2024) = Blim5476 4938 538 0.660 0.650 0.018 3477 3293 6.9 350.0
SSB (2024) = Bpa3242 2955 287 0.350 0.340 0.009 3977 4576 22.0 169.0
SSB (2024) = MSY Btrigger3242 2955 287 0.350 0.340 0.009 3977 4576 22.0 169.0
Rollover advice1206 1106 100 0.117 0.113 0.004 4395 6047 35.0 0.0
Fmsy1652 1512 140 0.163 0.159 0.004 4304 5634 32.0 37.0
FMSY upper2192 2005 187 0.220 0.220 0.006 4198 5260 29.0 82.0
FMSY lower1150 1055 95 0.111 0.108 0.003 4405 5987 35.0 -4.6