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

Total catch (2024) Projected landings (2024) Projected discards (2024) Ftotal ages 4-8 (2023 & 2024) Flandings (2024) Fdiscards (2024) SSB (2024) SSB (2025) % SSB change % Advice change

MSY approach: Fmsy (AR)1579 1474 105 0.144 0.140 0.004 4987 5911 23.0 32.0
FMSY upper (AR)2100 1959 141 0.196 0.190 0.006 4860 5518 20.0 75.0
FMSY lower (AR)1098 1027 71 0.098 0.095 0.003 5106 6314 26.0 -8.3
F = 00 0 0 0.000 0.000 0.000 5355 7244 32.0 -100.0
Fpa2764 2573 191 0.270 0.260 0.008 4699 5044 16.0 131.0
Flim3331 3091 240 0.330 0.320 0.010 4557 4650 12.5 178.0
Fsq2588 2413 175 0.250 0.240 0.008 4740 5159 17.0 116.0
SSB (2025) = Blim5556 5119 437 0.630 0.610 0.020 3973 3293 -1.9 360.0
SSB (2025) = Bpa3443 3191 252 0.340 0.330 0.011 4525 4576 11.7 187.0
SSB (2025) = MSY Btrigger3443 3191 252 0.340 0.330 0.011 4525 4576 11.7 187.0
Rollover advice1198 1120 78 0.108 0.104 0.004 5082 6332 25.0 0.0
Fmsy1770 1650 120 0.163 0.158 0.005 4941 5769 22.0 48.0
FMSY upper2345 2186 159 0.220 0.220 0.007 4799 5336 18.5 96.0
FMSY lower1233 1153 80 0.111 0.107 0.004 5073 6198 25.0 2.9