Chapter 21: Simulating Predator-Prey Dynamics of Walleye and Yellow Perch in Oneida Lake: an Assessment of Multispecies Matrix Projection Models
Shaye E. Sable and Kenneth A. Rose
Fisheries management is attempting to shift focus from population-level analyses to ecosystem-based approaches (Alaska Sea Grant 1999; NMFS 1999; Link 2002; Latour et al. 2003). Ecosystem-based fisheries management requires multispecies models, and these models must be tested to ensure they have sufficient accuracy to inform management decisions. The development of multispecies models have increased since the 1970s, as sufficient computing power became available, but most efforts have resulted in demonstration mode applications and the conclusion that sufficient data were lacking to adequately configure the models (Rose and Sable 2009). Recent advances in data collection methods, and demands for ecosystem-based fisheries management, have fueled a resurgence of interest in multispecies modeling. The time is now for quantitative evaluation of multispecies modeling approaches.