The ocean layer these extremes affect is called the twilight zone – between 200 and 1,000 metres deep. These depths are home to many important fish species and plankton. In fact, this zone has ...
This was a perplexing discovery as it was believed that nutrient and iron levels at these depths would not affect bacterial growth. “Unlike in surface waters, we did not expect to find siderophores in ...
An international team looks back 12 million years for clues about the formation of these vast areas where no life can survive A satellite image of the Northern Gulf of Mexico, where 'dead zones' can ...