Newly drilled cores from the Baltic Sea reveal 1,500 years of deoxygenation history. The record sheds light on the dire state of the Baltic Sea today.
nutrients
Posted inResearch Spotlights
Glacial Meltwater Plumes Support Greenland Phytoplankton Blooms
Field measurements from the Bowdoin Glacier show that entrainment of deep water into upwelling glacial discharge delivers crucial nutrients to the surface of the surrounding fjord.
Posted inEditors' Highlights
Nutrients May Change Flavor of “Meadow Tea” in Lakes
Lakes in the US and Europe have been getting more tea-colored over the past 30 years, and this “browning” trend may increase nutrient levels and affect lake water quality.
Posted inResearch Spotlights
The Tiny Organisms That Transport Silica Across Earth’s Oceans
Phaeodarians play a major role in marine nutrient cycle.
Posted inNews
After a Glacier Retreats, Plants Thrive Thanks to Phosphorus
Grasses, small flowers, and mosses colonize glacial till in the Peruvian Andes when researchers apply a phosphorus fertilizer, an ecological surprise with implications for carbon sequestration.
Posted inResearch Spotlights
Depth Matters in Peat Bog Nutrient Cycling
Peatlands store around a third of Earth’s soil carbon, and a new study begins to reveal how the ecosystems’ organic matter changes with depth.
Posted inResearch Spotlights
Dust Does Not Control Surface Ocean Productivity
The first continuous comparisons between daily atmospheric dust and ocean productivity measurements indicate that they are not correlated in the Gulf of Aqaba’s nutrient-limited ecosystem.
Posted inNews
Nutrient-Rich Water Around Seamounts Lures Top Predators
At an Indian Ocean marine refuge, tides drive cold water laden with nutrients onto the tops of underwater mountains, where it sustains a long food chain that culminates in sharks, tuna, and seabirds.
Posted inResearch Spotlights
One of World’s Oldest Animals Records Ocean Climate Change
Researchers probe millennia-old deep-ocean sponges for links between ocean nutrients and climate.
Posted inResearch Spotlights
Accounting for the Missing Silica in the Marine Sediment Cycle
Cosmogenic silicon-based estimates of the amount of biogenic silica stored in clays along continental margins could explain the large discrepancy in the nutrient’s global marine budget.