USING UNDERWATER VIDEO METHODS TO SEARCH FOR THE NAUTILUS EGG IN FIJI

Perhaps one of the greatest mysteries surrounding nautiluses is the nautilus egg. Where are they laid? How long do they take to hatch? How many are laid? Of course, we can answer many of these questions based on aquarium observations. But, how do these studies relate to what is really going on in the wild? In July 2017, our Save the Nautilus team traveled to Fiji to begin the first search for the wild nautilus egg. Using a combination of remote operated vehicles (ROV), baited remote underwater video systems (BRUVS), and community engagement, we will be exploring the areas of Savusavu and Pacific Harbour that are most likely habitat for nautilus eggs. This habitat is likely rocky (based on aquarium studies) and part of the reef slope between the depths of 75-150 meters (based on isotopic studies). The results of this first expedition will be shared here as well as plans for future expeditions to new areas in the next year. Locating nautilus eggs in the wild will not only improve our understanding of nautilus biology and reproduction, but also assist in future management of marine ecosystems.