What's Happening?
Researchers from the California Academy of Sciences have identified up to 20 potential new species in the deep coral reefs near Guam, part of the ocean's 'twilight zone.' This discovery was made during a two-week expedition where scientists retrieved
data from deep reef monitoring devices that had been collecting biodiversity and temperature data since 2018. The twilight zone, located at depths between 100 and 490 feet, is challenging to study due to the limited time divers can spend there. The team collected 2,000 specimens and recorded 100 species for the first time in the region. The study also highlighted warming trends in these deep waters, which are crucial for understanding the impact of climate change on ocean ecosystems.
Why It's Important?
The findings from this expedition are significant as they provide a deeper understanding of the biodiversity in the ocean's twilight zone, which is often overlooked. These deep reefs were once thought to be refuges for species affected by climate change in shallower waters. However, the study indicates that these areas are also under threat from rising temperatures, fishing, and pollution. The data collected will help conservationists develop strategies to protect these ecosystems, which are vital for marine biodiversity. The research underscores the need for comprehensive ecological baselines to safeguard these fragile environments before they undergo further changes.
What's Next?
The expedition marks the beginning of a two-year process to retrieve 76 monitoring devices deployed across the Pacific, including in Palau, French Polynesia, and the Marshall Islands. This effort aims to create the world's most comprehensive baseline of upper twilight zone biodiversity and provide insights into thermal conditions at these depths. The data will be crucial for conservation managers to develop effective protection measures for deep reef ecosystems. As climate change continues to impact these areas, the research will play a vital role in informing policy and conservation efforts.
