Nitrogen loss on sandy shores: The big impact of tiny anoxic pockets
Some microbes living on sand grains use up all the oxygen around them. Their neighbors, left without oxygen, make the best of it: They use nitrate in the surrounding water for denitrification -- a process hardly possible when oxygen is present. This denitrification in sandy sediments in well-oxygenated waters can substantially contribute to nitrogen loss in the oceans.
Some microbes living on sand grains use up all the oxygen around them. Their neighbors, left without oxygen, make the best of it: They use nitrate in the surrounding water for denitrification -- a process hardly possible when oxygen is present. This denitrification in sandy sediments in well-oxygenated waters can substantially contribute to nitrogen loss in the oceans.
