Giant squid detected in deep-sea canyon off coast of Australia
BBC Wildlife Magazine • • world
Key Points:
- Deep-sea researchers exploring underwater canyons off Ningaloo, Western Australia, used environmental DNA (eDNA) from water samples to detect hundreds of marine species, including many rare and previously unrecorded creatures.
- The study surveyed the Cape Range and Cloates canyons at depths up to 4,510 meters, revealing a rich and largely unexplored ecosystem with 226 species identified, such as giant squid, pygmy sperm whales, and Cuvier’s beaked whales.
- This marks the first detection of a giant squid (Architeuthis dux) in Western Australian waters in over 25 years and the northernmost record of the species in the eastern Indian Ocean.
- Researchers found many species that do not match existing records, suggesting a vast amount of deep-sea biodiversity remains undiscovered in the region.
- The findings highlight the importance of using eDNA as a non-invasive tool to improve understanding and conservation of deep-sea ecosystems facing threats from climate change, fishing, and resource extraction.
