Inter-species dependency of stock recruitment

Author

Fulton, Beth (Environment, Hobart)

Published

May 14, 2015

To represent potential interactions (e.g. feeding) during the larval phase inter-species dependency has been added for the recruitment of age structured functional groups. This allows for representation of herring consuming larval cod etc.

The following parameters need to be added to the biol.prm file

intersp_depend_recruit_FXX   # This define whether the group FXX recruitment is scaled by the biomass of another species (0 = no, 1 = linear scalar, 2 = inverse scalar)

intersp_depend_sp_FXX         # This is the ID of the species that the recruitment of FXX is dependent upon

intersp_depend_scale_FXX    # The scalar applied

If intersp_depend_recruit_FXX is set to 1 then the recruitment of FXX is scaled by

intersp_depend_scale_FXX * totbiom_of _ intersp_depend_sp_FXX

If intersp_depend_recruit_FXX is set to 2 then the recruitment of FXX is scaled by

intersp_depend_scale_FXX / totbiom_of _intersp_depend_sp_FXX


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