The population dynamics of Eurythoe laevisetis have not been well studied thus very little is known about potential threats to the species. The fireworm did seem very prolific at a cursory glance in the samples taken from the Heron Island reef however no proper identification was carried out.

Multiple studies have been done on the effects of heavy metals on species within the Eurythoe genus. In all of the studies exposure to heavy metals like mercury and copper resulted in the death of the fireworms every time (Marcano et al. 1997). Thus, heavy metal run off from urban areas into the ocean is a plausible threat to Eurythoe laevisetis if the run off is directed at its habitat (Mendez et al.2009).