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biogeosciences

Metal and concrete salmon pools at Oregon’s McKenzie River Hatchery
Posted inNews

Internal Compass Guides Salmon’s Incredible Journey

Mary Caperton Morton, Science Writer by Mary Caperton Morton 9 June 202019 July 2022

New study finds evidence that magnetite particles play a role in fish navigation.

Dark water and lighter-colored wave bubbles
Posted inNews

Shedding New Light on the Nitrogen Cycle in the Dark Ocean

Jon Kelvey, Science Writer by Jon Kelvey 6 May 202011 October 2022

Researchers find that the key players in nitrification may already be known.

Experimental crown fire in the boreal forest, Northwest Territories, Canada
Posted inEditors' Vox

New Special Collection: Fire in the Earth System

by Amy E. East and C. Santin 27 April 202012 December 2022

Papers are invited for a new cross-journal special collection presenting advances in understanding the physical and biogeochemical processes associated with landscape fires and their impacts.

A view of the San Juan Bay Estuary
Posted inResearch Spotlights

Linking Hydrology and Biogeochemistry in a Tropical Urban Estuary

Aaron Sidder, freelance science writer by Aaron Sidder 14 April 202010 February 2022

Low-lying coastal estuaries are intertwined with tropical cities around the world. Yet little is known about these water bodies, which affect millions of people globally.

A rosette water sampler hangs from a cable above the Arctic Ocean surface near some sea ice
Posted inResearch Spotlights

Tracking Trace Elements Across the Arctic Ocean

Kate Wheeling, freelance science writer by Kate Wheeling 8 April 202023 January 2023

Researchers used data from a pan-Arctic survey of carbon and trace elements to better understand how climate change will affect primary production in one of the fastest warming regions of the world.

Aerial view of a flat floodplain delta, agricultural land, and a town beyond
Posted inResearch Spotlights

Finding Natural Solutions to Man-Made Problems in River Deltas

Kate Wheeling, freelance science writer by Kate Wheeling 3 April 202019 September 2023

Decades of research on river deltas identify gaps in our knowledge of delta behavior and the tools required to fill them in.

Diagram of chemical dynamics of soil “frost boils” with an inset of a plant on rocky ground
Posted inResearch Spotlights

Floating Patches of Soil Nutrients in Soil Help Explain Arctic Thawing

by David Shultz 2 April 202029 September 2021

Nutrient-rich diapirs have a complex relationship with soil microbes and play an important role in carbon and nitrogen nutrient cycling, making them crucial for understanding feedbacks in the Arctic.

Mangrove trees in Rookery Bay National Estuarine Research Reserve in Naples, Florida.
Posted inResearch Spotlights

Florida Coastlines Respond to Sea Level Rise

Elizabeth Thompson by Elizabeth Thompson 1 April 202010 February 2022

For more than a century, carbon burial rates have been increasing on some southern Florida coasts. Scientists now verify this trend and propose an explanation.

One person’s hands hold a mahi-mahi while another person uses instruments to tag it.
Posted inNews

Oil-Exposed Mahi-Mahi More Likely to Lose Oil-Avoidance Behavior

Rachel Crowell, Science Writer by Rachel Crowell 30 January 202018 May 2022

Contact with oil may make it harder for the fish to avoid additional exposure, creating a vicious cycle following offshore oil spills.

CISME devices attached to living coral and a community of turf algae growing on dead coral
Posted inNews

Dead Reefs Keep Calcifying but Only by Day

by J. Oetting 24 December 20196 March 2023

A new measurement technique has revealed that turf algae communities colonizing dead reefs have a dual role, adding new mineral material to the reefs during the day and taking it away at night.

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Features from AGU Publications

Research Spotlights

In Alaska, Wildfires Help Prevent Future Burns. Will That Feedback Loop Hold?

24 September 202625 September 2026
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Reducing Uncertainty in Groundwater Models Using Airborne Geophysics

28 September 202625 September 2026
Editors' Vox

In Appreciation of AGU’s Outstanding Reviewers of 2025

14 September 202610 September 2026
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