There was no way to measure Arctic water temperature under the ice at scale. A Scripps team used acoustic thermometry across 2,600 km from Alaska to Svalbard. Signals propagated over 2,500 km, capturing seasonal temperature patterns beneath the ice.
More than 110 new fish and invertebrate species have been confirmed from the Coral Sea Marine Park off northeast Australia. Discoveries include a new deepwater catshark and two ray species. Analysis of cryptic species may push the total past 200.
A University of Washington team examined 178 cans of Alaskan salmon spanning 1979 to 2021. Anisakid parasites increased in chum and pink salmon, suggesting marine mammal populations have recovered. Canned goods became an unlikely time capsule for marine ecosystems.
Melted Antarctic ice doesn't just flow into the sea. It also seeps beneath the seafloor. MBARI led the first CSEM electromagnetic survey in Antarctica to investigate groundwater and gas flow below the seabed in one of the Southern Hemisphere's fastest-warming regions.
Schmidt Ocean Institute's 100th expedition discovered a 1.3 km² coral reef complex at 300m depth off Uruguay. Cold-water coral mounds up to 40m tall, over 30 suspected new species, and a methane seep chemosynthetic ecosystem.
University of Utah researchers used airborne electromagnetic surveys to discover a massive freshwater system extending 3-4km beneath Great Salt Lake. It stretches farther into the lake interior than expected and could help suppress toxic dust from exposed lakebeds.
