“…This study investigates whether it is possible to describe basic, tank-based infections, carried out under tightly controlled conditions, using a simple math ematical model and whether such models might provide a basis for more complex models that could be employed to optimise treatment timing in a biologically realistic system. Any model of salmon louse population dynamics must take into account the 10 life stages (nauplius I & II, copepodid, chalimus I-IV, pre-adults I & II and adults) that comprise each generation (Kabata, 1979). More complex models must consider not only the temporal partitioning of the generation represented by these stages but also the differences between them, expressed in terms of their morphology, physiology, environment and behaviour.…”