A science expedition to New Zealand’s most remote islands has exposed never before seen underwater forests and areas of the sea floor. The Rangitāhua region comprises several small islands along the Kermadec Ridge, the largest being Raoul Island. Its isolated position makes it a novelty and an enigma just waiting for discovery.
Aboard the Kaharoa voyage during October-November, deep sea oceanographers and ecosystem specialists uncovered previously unknown environments using specialised equipment. These environments are too deep for SCUBA observation so this represents the first time they have been observed by humans.
The Deep Towed Imaging System (DTIS) takes footage of the landscape and life at remote depths. While deployed around Raoul Island, the DTIS team uncovered vibrant reef systems up to 300 meters deep. Large Gorgonians, colourful fish and flourishing corals indicate an old and well established ecosystem. It was a very exciting find for Rob Stewart, Sarah Searson, and others onboard.