Around 1980, Sacramento Pikeminnow were introduced to northern California’s Eel River Basin and spread rapidly, further straining a system where large declines in native fish abundance had already been observed over recent decades. Invasive Sacramento Pikeminnow are highly piscivorous and have been identified as an impediment to the recovery of threatened Eel River Coho Salmon, Chinook Salmon, and steelhead. Though funding and resources have been and will continue to be dedicated to removing these invaders, there has to date been no attempt at quantifying the amount of native fish they consume. Without this information, there can also be no corresponding estimates of the potential reduction in predation of native fish as a result of pikeminnow removal. In this project, I will first seek to develop a bioenergetics model to estimate the amount of Chinook Salmon, Coho Salmon, and steelhead consumed by Sacramento Pikeminnow. This will provide ecosystem managers with the ability to set objective, measurable management goals directly relating to the fish they are trying to recover. Second, I will combine this model with an already-developed demographics model to compare and optimize suppression regimes. This will provide managers with the optimal size selectivity, suppression gear types, and suppression timing and spatial regimes to design evidence-based suppression programs for effective pikeminnow management.