Scientists have discovered a new way to map the ocean floor by enlisting the help of sea lions equipped with cameras. These marine mammals, named Daphne, Phoebe, Iris, and Pasithea, have provided valuable insights into the underwater ecosystems around Kangaroo Island and Olive Island in Australia.
Nathan Angelakis, a Ph.D. student at the South Australian Research and Development Institute and the University of Adelaide, led the research effort. He explained that much of the ocean remains unexplored, and traditional methods of mapping the seabed using robots can be challenging and costly. By attaching video cameras to sea lions, researchers were able to capture footage of previously unseen parts of the ocean floor, including vibrant meadows of seaweed and coral-covered rocks.
The sea lions, which are natural divers capable of reaching depths of 300 feet, offered a unique perspective that robots could not provide. The footage captured by Daphne, Phoebe, Iris, and Pasithea shed light on how these animals navigate and utilize different habitats, offering valuable insights for conservation efforts.
To equip the sea lions with cameras, researchers approached the animals on land and administered a light sedative. They then attached small cameras and tracking devices to monitor the animals’ movements and behaviors underwater. This innovative approach allowed scientists to gather data in a more cost-effective and efficient manner compared to traditional methods.
Overall, the study published in the journal Frontiers in Marine Science highlights the important role that marine mammals can play in ocean exploration and conservation efforts. By leveraging the natural abilities of sea lions, researchers can better understand and protect fragile underwater ecosystems, ensuring the preservation of endangered species like the Australian sea lion.
This research opens up new possibilities for future studies and underscores the importance of collaboration between humans and marine animals in uncovering the mysteries of the deep sea. By working together, scientists and sea lions alike can continue to unravel the secrets of the ocean floor and pave the way for informed conservation strategies.
