Pheromones and signalling compounds have been successfully used for the detection and control of pest species in terrestrial environments for a number of decades. Despite these successes, there are currently no pheromone or signalling compounds that have been developed for marine invasive species to assist with their management and control. The Northern Pacific Seastar (Asterias amurensis) is a highly invasive species that has caused significant ecological damage in South-Eastern Australia. Due to its high fecundity and dense populations, management options for control and eradication are limited. As broadcast spawners, A. amurensis aggregate for breeding, with pheromones and signalling compounds likely to trigger these aggregations. This talk will cover the identification and characterisation of key signalling compounds from the Northern Pacific Seastar that may be involved in spawning aggregations. Using a combination of chemical separation techniques, and controlled laboratory trials, several candidate compounds were successful tested. Further field based tests were also conducted using these compounds to demonstrate the effectiveness in a real world setting as a potential management tool to prevent A. amurensis from establishing in new areas, and allow for control of this highly invasive species in areas where it has currently established.