A global survey using baited cameras on coral reefs demonstrates a near twofold increase in the relative abundance of reef sharks in marine protected areas that are also embedded within areas of effective fisheries management. However, such conservation benefits were not evident for wide-ranging sharks or rays found on the reef.

A new technological development for detecting floating litter from space was tested in the Mediterranean Sea. Using satellites currently in orbit, researchers achieved an unprecedented view of the emissions and accumulation areas of marine litter.

Seafloor cold seeps can act as a sink for mercury and a source for methylmercury in the deep ocean, according to the results from geochemical and geomicrobiological analysis of sediments of the Haima cold seep in the South China Sea.

Addressing coastal ocean acidification requires holistic and harmonized actions across several sustainable development goals (SDGs) and a range of indicators to encourage mitigation efforts at local scales, suggests a synthesis of direct and indirect links between ocean pH and SDGs.

Bathymetry-based numerical simulations suggest small-scale seafloor roughness in the continental shelf of East Antarctica slows the circulation of circumpolar deep water and limits heat supply to the ice shelf?a mechanism missing from climate models.

Glacier melt-modified waters in a Greenland fjord contained less mercury than inflowing ocean waters, suggesting meltwaters are low in mercury and glacial sediments may remove oceanic mercury, according to analysis of full water column measurements.

Species are already on the move as waters warm. Conservation plans need to take this into account.

Isabelle Cote and three other female marine scientists competed in a row across the Atlantic ocean, making the trip in 38 days to raise money for ocean education, conservation and research.

A global survey using baited cameras on coral reefs demonstrates a near twofold increase in the relative abundance of reef sharks in marine protected areas that are also embedded within areas of effective fisheries management. However, such conservation benefits were not evident for wide-ranging sharks or rays found on the reef.

Achieving inclusive and sustainable ocean economies, long-term climate resilience and effective biodiversity conservation requires urgent and strategic actions from local to global scales. We discuss fundamental changes that are needed to allow equitable policy across these three domains.

Excited by the prospect of future missions to the Jupiter system, Bruce Gibb explores the chemistry of Jupiter’s moons and wonders whether there could be life on Europa.

Oil and gas installations, offshore windfarms and other artificial constructions may enhance marine ecosystems and have been proposed to help meet conservation targets. A study synthesizes existing literature to reveal global patterns in their ecological effectiveness.