Tag: deoxygenation

The Sargasso Sea Is Plenty Wide, and It’s Growing

April 14, 2020 By Dan Nosowitz Atlas Obscura
Sargassum is the umbrella term for a group of marine algae species—within a larger group called seaweed—that’s fundamental to the health of an entire region of the Atlantic and the many species who either live there or pass through. Sometimes, though, it explodes in growth, creating a continent-sized bloom that thoroughly freaks out multiple countries. These blooms have long happened and are perfectly acceptable if they happen rarely. They have not been happening rarely.

Ocean deoxygenation: A silent driver of coral reef demise?

April 1, 2020 Science X
The existence of coral reefs, in all their abundant biodiversity and beauty, relies largely on a complex symbiosis between reef-building corals and microalgae. This finely tuned, fragile, partnership is constantly under threat from environmental stress—most notably the twin effects of warming waters and ocean acidification caused by climate change. But scientists say a third driver, that of ocean deoxygenation, could pose a greater and more immediate threat to coral reef survival.