For the first time in over 25 years, researchers have detected traces of the elusive giant squid in Western Australian waters using innovative eDNA techniques. The study revealed the northernmost confirmed record of Architeuthis dux in the eastern Indian Ocean.
There are only two other records of the giant squid from Western Australian waters. No confirmed sighting or specimen had emerged in more than 25 years before this survey. The research was conducted by Curtin University, WA Museum, and Schmidt Ocean Institute.
The study took place in the Cape Range and Cloates submarine canyons, located approximately 1,200 kilometers north of Perth. Researchers explored depths exceeding 4,500 meters to gather data on deep-sea biodiversity.
Key findings:
- The giant squid was detected using eDNA protocols.
- A total of 226 species were identified across 11 major animal groups during the study.
- The expedition collected over 1,000 water samples.
Dr. Lisa Kirkendale stated, “This is the first record of a giant squid detected off Western Australia’s coast using eDNA protocols and the northernmost record of A. dux in the eastern Indian Ocean.” Dr. Georgia Nester added, “Finding evidence of a giant squid really captures people’s imagination, but it’s just one part of a much bigger picture.”
Zoe Richards emphasized that environmental DNA provides a non-invasive method to build baseline knowledge essential for informed management and conservation efforts.
