Tag

Marine Productivity

All articles tagged with #marine productivity

environment1 year ago

"Tropical Cyclones: Unlikely Allies Against Ocean Hypoxia"

New research suggests that tropical cyclones have a net positive impact on ocean oxygenation and primary productivity in the East China Sea, countering issues of deoxygenation and hypoxia caused by human activities. The study found that tropical cyclones lead to increased oxygen levels and enhanced marine trophic webs, despite their devastating consequences on land. As climate change continues, the frequency of these events is likely to increase, presenting a paradoxical situation where tropical cyclones, while destructive on land, may benefit the marine realm.

science2 years ago

"Atlantic Seaweed Study Reveals Nitrogen Fixation Hotspots"

A long-term study conducted by researchers at the University of North Carolina at Chapel Hill has found significant nitrogen fixation hot spots in sargassum, a brown macroalgae in the seaweed family that floats on the surface of the open ocean. Nitrogen fixation, the process by which microorganisms convert nitrogen into a usable form for other plants and animals, was found to be significant in sargassum communities, potentially contributing to sargassum blooms and supporting marine productivity. The study highlights the importance of sargassum in the marine nitrogen cycle and suggests that previous studies may have underestimated nitrogen fixation in the Atlantic nitrogen budget.