A Stage-Structured Fishery Model for African Catfish and Nile Tilapia Feeding on Two Food Resources with Harvesting

Table 1

Variables used in the stage-structured model for African catfish, Nile tilapia, and the two food resources.

Variables	Description
	Biomass of small juvenile African catfish at time
	Biomass of large juvenile African catfish at time
	Biomass of small adult African catfish at time
	Biomass of large adult African catfish at time
	Biomass of juvenile Nile tilapia at time
	Biomass of adult Nile tilapia at time
	Biomass of zooplankton (animal items) at time
	Biomass of phytoplankton (plant items) at time