A scientific study describes for the first time the submarine cartography of a high-latitude system in the IBIS channel, which covers tens of kilometres in the northern western area of the Barents Sea, in the Arctic Ocean. This channel is one of the few submarine valleys in polar latitudes that kept its geological architecture during the Last Glacial Maximum (LGM).
An array of underwater listening lines that detect passing giant Atlantic bluefin tuna previously caught and tagged by scientists has created a new system to monitor these enormous, fast, powerful and lucrative fish in the open ocean. Ten years of research using the technology sheds light on the species' natural mortality as well as migration, important information for sustainable management of their populations.
The scientists analyzed data spanning more than four decades and concluded that the impact of lake trout in Yellowstone Lake -- in particular, the decline of native cutthroat trout -- has cascaded across the lake, its tributaries and the surrounding ecosystem.
A new paper by an international team of researchers argues that decision-makers and fishing organizations must recognize the growing role of recreational fishing and the potential pressures it places on fish stocks.
A newly discovered parasitic cycle, in which ocean bacteria keep phytoplankton on an energy-sapping treadmill of nutrient detoxification, may offer a preview of what further ocean warming will bring.
An EPFL study has showed that until now, scientists have been substantially underestimating how quickly gases are exchanged between mountain streams and the atmosphere. Based on research in the Swiss cantons of Vaud and Valais, an EPFL laboratory has shed new light on the role of mountain streams to emit greenhouse gases.
Rising global maritime traffic could lead to sharp increases in invasive species around the world over the next 30 years, according to a new study by McGill University researchers. The findings, published in the journal Nature Sustainability, suggest that shipping growth will far outweigh climate change in the spread of non-indigenous pests to new environments in coming decades.
Nitric oxide (NO) is a central molecule of the global nitrogen cycle. A study by Boran Kartal from the Max Planck Institute for Marine Microbiology, Germany, and colleagues reveals that microorganisms can grow on NO. Their results, which are now published in Nature Communications, change our view of the earth's nitrogen cycle and how microorganisms regulate the release of greenhouse gases from natural and man-made environments.
DNA barcoding of more than 1,400 Marine Stewardship Council (MSC)-labeled products has shown that less than 1 percent were mislabeled, compared with a reported average global seafood mislabeling rate of 30 percent. These results published in the journal Current Biology suggests that the MSC's ecolabeling and Chain of Custody program is an effective deterrent for systematic and deliberate species substitution and fraud.
A new model has been created that can forecast the location of Eastern Pacific leatherback turtles along the coast of Central and South America in an effort to decrease bycatch mortality of this critically endangered and ecologically important species.