Rock stars of the ocean

Thousands of giant Australian cuttlefish have migrated into the upper Spencer Gulf for their annual breeding, and people are flocking to watch the spectacular display.

Each year during the cooler winter months the waters around Point Lowly in South Australia are filled with cuttlefish.

“The whole area around Point Bonython accommodates hundreds of thousands of giant Australian cuttlefish,” South Australian Research and Development Institute’s (SARDI) Dr Michael Steer said.

“They aggregate on that 10-kilometre stretch to breed.” The rocky seabed provides unique and perfect points for the females to anchor eggs.

As part of the breeding process, the males put on a spectacular display of colours and shape-shifting to attract and keep a mate.

Due to their short lifespan, expressive behaviour and active sex lives, giant Australian cuttlefish are often referred to as the rock stars of the ocean.

“Because their generations turn over so quickly, you get these booms and busts in the population,” Dr Steer said.

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