Sea lamprey are a significant hazard to the health and biodiversity of an ecosystem that it's not naturally from. The feeding strategies it employs, boring a hole into the host to feed on blood and bodily fluids, are too severe for the animals that haven’t coexisted with this specific species. This includes species of fish that are essential to the environment's stability, such as yellow perch. A potential method for controlling sea lamprey is to target the larvae that reside in streams. The focus of this study was to observe the effects of pheromones produced by adults on larvae. To observe this, larvae were raised in water with various concentrations of 3kPZS and measured each week. The results appear to indicate that 3kPZS did not affect larval growth over approximately one month. This could be due to an insufficient time window. Despite the current results, further testing and analysis are needed to verify this finding. Understanding the factors that influence the growth of this invasive species could help in efforts to control its population.