2 Introductory material: Ecopath

This chapter contains details of the theory underpinning the functioning of Ecopath: Mortality for a prey is consumption for a predator?; The energy balance of a box?; On the need for input parameters?; Defining the system?; Dealing with open system problems?; Production?; Consumption?; Other mortality?; and Representation of multi-stanza life histories?.

See Ecopath inputs and Ecopath outputs? for links to instructions for using Ecosim.