How to spot the Giant Australian cuttlefish when scuba diving
Sepia apama
Found along the coasts of Europe (including Mediterranean, North Sea, Baltic), Africa, Asia, and Australia. They are absent from the Americas. Inhabit tropical and temperate shallow coastal waters down to ~600m.
Can be seen year-round in many locations. Specific mating aggregations occur seasonally, like the famous Giant Cuttlefish (Sepia apama) aggregation in Whyalla, South Australia (May-August). Often more active or visible at dusk/night, but readily seen during the day.
Temperate to tropical, species-dependent.
Found over sandy or rubble bottoms, near reefs, and in seagrass beds. They are masters of camouflage and color change. Look for them hovering near the seabed or partially buried in sand. Approach slowly; they are curious but can ink and jet away if startled. Mating season offers incredible displays of color and behaviour.
Worldwide observation of the Giant Australian cuttlefish
Scroll out to see a bigger view
Data sources
- Photos: Wikimedia Commons
- Distribution and specie data: GBIF (Global Biodiversity Information Facility)
Still on dry land?
Join fellow dive enthusiasts who've already discovered the easiest way to track their underwater adventures and their diving analytics!