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A person in a wetsuit wades through an underwater cloud of salps.
Posted inResearch Spotlights

Jet-Propelled Tunicates Pump Carbon Through the Oceans

by Aaron Sidder 19 January 202319 January 2023

New research reveals that blooms of the widespread gelatinous zooplankton—along with their feces, daily vertical migrations, and carcasses—increase marine carbon export.

R/V Mirai makes its way across Arctic sea ice.
Posted inNews

The Bottom of the Arctic Is Blooming

by Fanni Daniella Szakal 14 November 202217 November 2022

Researchers found phytoplankton hidden on the Arctic seafloor, hinting at a cascade of effects on the local ecology and carbon cycle.

Posted inEditors' Highlights

Respiration Quotient Variability and Ocean Oxygen Levels

by Eileen Hofmann 1 November 20221 November 2022

Respiration quotients in the Atlantic and Pacific Oceans reflect different water temperature, nutrient stress and phytoplankton community structure, important for regional carbon and oxygen cycling.

A black and white Secchi disk being held by a person
Posted inNews

The Simple Usefulness of the Secchi Disk

by Miriam Reid 18 July 202219 July 2022

A centuries-old sailor’s hack enters the ecologist’s toolkit.

Photo of a scientist drilling into lake ice to take a sample.
Posted inEditors' Vox

A Future Without Ice Cover

by Steven Sadro and Marguerite A. Xenopoulos 11 July 202221 July 2022

Winter is fading away, but the answers may be beneath the ice; a new collection on winter limnology tackles the unknowns.

Microscopic image of a mucosphere with microbes trapped inside it.
Posted inNews

The Ocean Is Still Sucking Up Carbon—Maybe More Than We Think

by Nancy Averett 3 May 202214 September 2022

Recent studies looking at carbon-sequestering microbes suggest we still have a lot to learn about the ocean’s biological carbon pump.

Plot showing UV-induced emissions weighted global warming potential in CO2 equivalent for each greenhouse gas emitted from cell suspensions of 16 species of marine phytoplankton.
Posted inEditors' Highlights

Phytoplankton as Emitters of Greenhouse Gases

by Marguerite A. Xenopoulos 15 October 20217 October 2021

Phytoplankton remove carbon dioxide from the atmosphere; a new study reveals that marine phytoplankton can also produce greenhouse gases when exposed to ultraviolet radiation.

Margaritifera laevis shells on the bottom of a river.
Posted inNews

Freshwater Mussel Shells May Retain Record of Alpine Snowpack

by Stacy Kish 4 October 202112 October 2022

A new study explores a possible proxy for seasonal freshwater input that could elucidate changes in alpine snowpack as the planet warms.

Imagen de microscopio de varios tipos de dinoflagelados
Posted inResearch Spotlights

El papel del fitoplancton de tamaño medio en la bomba biológica de la Tierra

by Kate Wheeling 21 July 202127 September 2022

Una nueva investigación revela que el nanoplancton podría tener una mayor influencia en el ciclo del carbono de lo que se pensaba.

OFP traps being recovered and deployed
Posted inResearch Spotlights

Particles at the Ocean Surface and Seafloor Aren’t So Different

by Jack Lee 10 June 202127 September 2022

Despite occurring on different scales, flux measurements throughout the water column share log-normal probability distributions.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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