Potential Use of the Andersen-Ursin Multispecies Beverton and Holt Model for Modelling North Pacific Fish Interactions

摘要

The management of marine fisheries is a complex task. At the very least, it requires knowledge of resource abundance and its associated rates of fishing and natural mortality. More detailed information is needed in order to understand the observed fluctuations in a population's abundance. For example, age structure, fecundity, and growth rate are parameters used to estimate a species' potential to recover from fishing removal. Fish species interact with each other through predation and competition for food and these interactions may be a major cause of fluctuations in fish abundance. A multispecies model is usually required to assess the effects not only of fishing but also of fish interactions on fish population size.