Only a few hundred Devils Hole pupfish live in an isolated pool in the desert, where occasional floodwaters roil their habitat.
nutrients
Nutrients at Depth Can Be Uplifted by the Kuroshio Large Meander
Aperiodic, southward deflection of the Kuroshio, a.k.a. the Kuroshio large meander, uplifts the nutrients in deep layers to induce offshore phytoplankton bloom.
Ocean Deserts Could Help Capture CO2 and Mitigate Global Warming
Various nutrient sources in the upper waters of oceanic subtropical gyres, which are the Earth’s largest oligotrophic ecosystems, play a crucial role in governing the sequestration of atmospheric CO2.
Sulfur is Demanding its Place in Crop Nutrient Budgeting
Scientists advocate for a more significant consideration of sulfur from a multidisciplinary perspective as a necessary step towards sustainable crop management.
Even Treated Sewage Harms Freshwater Ecosystems
In a controlled experiment, researchers diverted wastewater from an advanced treatment facility into a healthy stream and monitored the unfolding ecological effects.
Our Evolving Understanding of Biological Carbon Export
The array of processes and organisms that make up the biological carbon pump has immense influence on Earth’s carbon cycle and climate. But there’s still much to learn about how the pump works.
Current Agriculture Adds More Phosphorus to Streams Than to Lakes
Improved agricultural nutrient management could improve stream water quality by reducing phosphorus levels, but rising temperatures and rainfall due to climate change might offset improvements.
Biogeochemical Insights from a Major Amazonian River
Underrepresented in global carbon budgets, tropical rivers like Brazil’s Tocantins are in need of study to establish their baseline characteristics in the face of increasing global change.
Scientists Discover a Way of Forming Suspended Layers of Sediment
Laboratory experiments suggest that underwater gas eruptions—due to the venting of gas hydrates, for example—could trigger the formation of layers of suspended sediment in the ocean.
Ambidextrous Microbes May Pump Out CO2 as Temperatures Rise
Certain microbes that engage in both photosynthesis and predation are more likely to do the latter as the planet warms, resulting in a net release of carbon dioxide.