Fiddler Ray

Approaching a fiddler ray requires calm, controlled movements and meticulous buoyancy control. Because these rays settle on soft sand and silty substrates, divers should maintain horizontal trim and employ gentle frog kicks well above the bottom to avoid kicking up sediment clouds that ruin visibility and disturb the animal. Approach slowly from the side or front at a shallow angle rather than descending directly overhead, which mimics predatory behaviour from large sharks. If the ray begins to stir or shuffle its pectoral fins, give it space. For underwater photographers, natural light or subtle fill flash from dual strobes brings out the intricate lilac and golden hues of its geometric markings. A mid-range wide-angle or wide zoom lens (such as a 16–35mm equivalent) works brilliantly for capturing the animal in its sandy or seagrass context.

The fiddler ray can be encountered year-round across its temperate home range, but peak diving conditions often align with southern hemisphere summer and autumn. From November to April, water temperatures in Victoria and South Australia are at their most comfortable, ranging between 16°C and 21°C, accompanied by calmer seas and improved underwater visibility. In New South Wales, sites around Sydney and Jervis Bay offer reliable sightings throughout the year, though December to May brings optimal conditions and warmer currents. For divers seeking aggregations or courtship behaviour, late spring through summer (November to February) is particularly rewarding in sheltered bays and shallow sand flats where rays gather to mate.

The fiddler ray is endemic to the coastal marine waters of southern and eastern Australia, ranging from southern Queensland through New South Wales, Victoria, Tasmania, and across South Australia to south-western Western Australia. It thrives across an extensive depth range, from extremely shallow intertidal shallows and sheltered estuarine sandbanks down to coastal shelf depths exceeding 100 metres, though it is most frequently encountered by divers between 3 and 30 metres. The waters this animal calls home encompass sun-dappled seagrass beds (*Posidonia* and *Zostera*), open sandy plains, muddy estuaries, sheltered bays, and the sandy fringes of temperate rocky reefs, macroalgae gardens, and artificial structures such as jetty pylons.

The fiddler ray is a dedicated benthic carnivore that hunts primarily by day and twilight along the seafloor. Its diet consists predominantly of bottom-dwelling invertebrates, including crabs, mantis shrimps, amphipods, polychaete worms, and small bivalve molluscs, alongside occasional small benthic fishes. To locate buried quarry, the ray utilises a sensory network of electroreceptive ampullae of Lorenzini embedded beneath its snout, detecting the minute electrical signatures emitted by prey hiding in the sediment. Rather than sharp, tearing teeth, it possesses pavement-like rows of flattened, crushing teeth designed to effortlessly pulverise the hard exoskeletons of crustaceans and the calcareous shells of molluscs. When feeding, it often settles over its target, using gentle suction and its heavy jaws to extract prey directly from the substrate.