Their nightly journeys are a natural conveyor belt, shuttling nutrients and carbon into the ocean’s hidden reservoirs. Feeding Habits and Food Web Connections Lanternfish are not picky eaters.

A coastal ocean dead zone is mainly caused by the flow of excess nutrients humans use on land, such as fertilizer application. In the Northern Gulf of Mexico, anthropogenic nutrients delivered by the ...

But all that mixing also stirs up low-oxygen zones deep in the water, bringing them much nearer the surface than usual, threatening organisms that need higher oxygen concentrations to survive.

Nutrient run-off triggers dead zones. After the 1970s, dead zones became more widespread, ... But they float near the surface of the ocean, where they can soak up available sunlight.

Annual spring rains wash the nutrients used in fertilizers and sewage into the Mississippi. That fresh water, less dense than ocean water, sits on top of the ocean, preventing oxygen from mixing ...

Using ocean measurements, the team was able to identify the presence of large pools of inorganic nutrients in the twilight-zone of the low latitudes that are sustained largely through bacterial ...

Although the research into siderophores is new, this study demonstrates their clear impact on the movement of nutrients in the ocean's twilight zone.

Ocean darkening occurs when changes in the optical properties of the ocean reduce the depth of its photic zones, ... where rainfall on land brings sediment and nutrients into the sea, ...

Along with nutrients like nitrogen and phosphorus, iron is essential for the growth of microscopic phytoplankton in the ocean. However, a new study led by oceanographers at the University of ...

The North Pacific Transition Zone, he explained, is one of these critical boundaries, as this region separates low-nutrient ocean whirlpools from nutrient ecosystems in the north.

The team examined the chemical composition of ocean sediments near today’s largest ocean dead zone, located in the eastern Pacific Ocean. The team obtained sediment samples—the “history books” of ...

Hurricanes stir deep ocean layers, bringing nutrients and low-oxygen zones to surface, study finds. by Lorena Anderson, University of California - Merced ...