Fisheries Input File

Author

Gorton, Bec (Environment, Hobart)

Harvest Strategies

Broken Stick harvest strategy

Algorithm:

Bcurr = current biomass

Fcurr = current fishing mortality

BrefA = targ_refA  * initial estBo biomass

BrefB = targ_refB * initial estBo biomass

Blim = lim_ref * * initial estBo biomass

FrefA = Fref value from input file.

if(Bcurr >= BrefA)

  FTarg = Fcurr;

else if(Bcurr < BrefA && Bcurr >= BrefB

  FTarg = FrefA

else if (Bcurrn < BRefB && Bcurr > Blim

 FTarg = (Bcurr - Blim)/(BrefB - Blim)

else

 Ftarg = 0; /* Bcurr < Blim)

The the mFC value is scaled by:

scaler = FTarg / Fcurr.