Where Has All the Nitrogen Gone?
Scientists arrive at the coast of Chile to study why estimates of the amount of nitrogen leaving the ocean exceed estimates of nitrogen coming in by several billion kilograms per year.
View ArticleSolving the Microbial Whodunit
Studying microbes and chemistry in the ocean can be a bit like forensic science.
View ArticleCollecting Seawater From the Depths
Scientists sample for microbial DNA and stable isotope ratios in nitrogen-containing compounds to learn about the relative contributions of different nitrogen cycling processes.
View ArticleTracing Nitrogen’s Path Through the Ocean
Scientists aboard the research vessel Melville study how rates of nitrification and nitrogen fixation vary in space and time.
View ArticleEverything Returns to Carbon
Scientists use sediment traps to measure the movement of carbon through the ocean.
View ArticleMicrobial Life in the Ocean’s Desert
Scientists use a special technique to study microbes in the lowest nutrient, least productive waters on Earth.
View ArticleCollecting Sediments on the Ocean Floor
Scientists measure the amount of oxygen in the water between sediment particles to calculate the rate at which carbon reaches the bottom of the ocean.
View ArticleQ. and A. on the Nitrogen Cycle
Alyson Santoro, a postdoctoral researcher at Woods Hole Oceanographic Institution, answered readers' questions about her expedition to study microbes in the nitrogen cycle off the coast of Chile.
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