The movement patterns of top predators are being tracked by a network of autonomous acoustic receivers ("listening stations") deployed around the coast of Oʻahu and on Fish Aggregation Devices (FADs) that are anchored offshore around the Hawaiian islands. Tuna, marlin, sharks, and other large marine animals that have been tagged with a transmitting device can be located and identified when they swim near the receivers. The tags used on these animals broadcast a unique identification code along with other information (for example, depth of the animal). In the future, it may be possible to relate the movement of these animals to the oceanographic conditions being measured by other parts of the PacIOOS system. Additionally, this information can be used to model population dynamics of these important marine animals.
Google Earth KML: http://pacioos.org/kml/acoustic_monitors.kmz