A study found that Arctic ocean warming triggers methane release from seabed sediments, contributing to climate change. The National Oceanography Centre and researchers detected over 250 plumes of bubbles rising from the West Spitsbergen continental margin.
Researchers found that diatoms, a type of phytoplankton, host nitrogen-fixing cyanobacteria, contradicting previous assumptions that blue-green algae were the primary drivers. The study reveals an important mechanism for regulating atmospheric carbon dioxide and climate.
Researchers from the National Oceanography Centre have made significant discoveries using iron isotopes to study sediment respiration and iron cycling processes in the deep-sea. The findings provide new insights into iron's role in the ocean's carbon cycle and its impact on climate.
The CHIKYU vessel conducted the first riser-drilling operation in the Nankai Trough earthquake zone, reaching a depth of 1,603.7 meters beneath the seafloor. The operation provided valuable information on geological formations and stress-strain characteristics.
A study published in Nature finds that sea ice formed in the Arctic before it did in Antarctica, contradicting scientific expectation. The researchers analyzed oceanic sediment cores and fossilized diatoms to conclude that episodic sea ice formation began around 47.5 million years ago.
Scientists discover regular alternation of microscopically thin layers composed of distinct diatom assemblages, reflecting seasonal changes in the Arctic Ocean during the Late Cretaceous. This indicates exceptional abundances of diatoms adapted to stratified conditions, suggesting a pointer to future trends in the modern ocean.
In the high-latitude North Atlantic, low iron availability unexpectedly limits summer biological production. Experimental results show that adding iron increases photosynthetic efficiency and growth of phytoplankton, but insufficient iron is available to support the bloom.
A study reveals that king crabs' ability to live in low-temperature waters drove their evolution and spread globally, while also influencing the distribution of other marine species. The research, published in the Journal of Biogeography, highlights the importance of temperature in shaping the biology and ecology of deep-sea creatures.
A new record reveals a systematic equilibrium relationship between global temperature and CO2 concentrations and sea-level changes over the last five glacial cycles. This suggests that even stabilisation at today's CO2 levels may commit us to sea-level rise, potentially exceeding long-term projections.
Scientists use Autosub, a robot submarine, to map the seabed and underside of Pine Island Glacier in Antarctica. The mission aims to understand why the glacier is thinning and accelerating over recent decades.