- University of Leicester scientists analyse the chemical composition of corals to spot the signs of deforestation

- Corals absorb trace elements in water into their skeletons, which provides a proxy for nearby soil erosion

- Fills a huge gap in environmental data on deforestation impacting coastal ecosystems

Scientists have conducted a study of the predatory behavior of sharks in deep-sea ecosystems. This research provides insights into the behavior and distribution range of Pacific sleeper sharks. The research is published in the journal Ocean-Land-Atmosphere Research on June 1, 2025.

Ship traffic in shallow areas, such as ports, can trigger large methane emissions by just moving through the water. The researchers in a study, led by Chalmers University of Technology in Sweden, observed twenty times higher methane emissions in the shipping lane compared to nearby undisturbed areas. Despite the fact that methane is a greenhouse gas that is 27 times as powerful as carbon dioxide, these emissions are often overlooked with today's measurement methods.

"Our measurements show that ship passages trigger clear pulses of high methane fluxes from the water to the atmosphere. This is caused by pressure changes and mixing of the water mass. Even if the pulses are short, the total amount during a day is significant," says Amanda Nylund, researcher at Chalmers University of Technology and the Swedish Meteorological and Hydrological Institute, SMHI.

The intricate, hidden processes that sustain coral life are being revealed through a new microscope developed by scientists at UC San Diego’s Scripps Institution of Oceanography.

The diver-operated microscope — called the Benthic Underwater Microscope imaging PAM, or BUMP — incorporates pulse amplitude modulated (PAM) light techniques to offer an unprecedented look at coral photosynthesis on micro-scales. Funded by the National Science Foundation, the new microscope will help scientists uncover precisely why corals bleach, and inform remediation efforts. While the bleaching process is known, it’s not fully understood, and it hasn’t been possible to study in depth in the field — until now.