Contribution of photic and aphotic N₂ fixation to production in an oligotrophic sea

Agriculture & Biology

• nitrogen fixation 69%
• Cyanobacteria 60%
• nitrates 56%
• Trichodesmium 55%
• Gulf of Aqaba 54%
• euphotic zone 53%
• summer 44%
• Red Sea 43%
• nitrogen-fixing bacteria 41%
• surface water 37%
• Proteobacteria 37%
• water 28%
• winter 22%
• nitrogen 19%

Earth & Environmental Sciences

• fixation 100%
• sea 55%
• rate 33%
• vertical mixing 32%
• cyanobacterium 27%
• water column 23%
• gulf 21%
• nitrate 21%
• photic zone 18%
• turbulent diffusion 18%
• summer 16%
• thermocline 15%
• stratification 12%
• incubation 12%
• productivity 10%
• surface water 9%
• in situ 8%
• winter 8%
• nitrogen 8%
• detection 8%
• station 8%
• water 4%