Results 251 to 260 of about 103,581 (321)

Improvement of Seasonal Carbon Cycles in HNLC Regions of a Global Ocean Biogeochemical Model Using a Simple Marine Ecosystem Module

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 2, February 2026.
Abstract A recent community‐wide evaluation revealed that many state‐of‐the‐art global ocean biogeochemical models displayed seasonal surface CO2 ${\text{CO}}_{2}$ flux variations in the subpolar North Pacific that were out‐of‐phase with observation‐based estimates.
H. Tsujino   +7 more
wiley   +1 more source

Bottom-up and top-down effects on phytoplankton communities in two freshwater lakes

open access: gold, 2020
Yanran Li   +6 more
openalex   +2 more sources

Seasonal Changes in Marine Archaeal Tetraether Lipid Export Depth Linked to Net Primary Productivity

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 2, February 2026.
Abstract Marine ammonia oxidizing archaea (AOA) produce isoprenoid glycerol dibiphytanyl glycerol tetraethers (GDGTs) which form the basis of seawater temperature proxy TEX86. Although most studies use TEX86 for sea surface temperature (SST) reconstructions, maximum GDGT production occurs at and below the nitracline. Moreover, sedimentary GDGT‐2/GDGT‐3
Addison Rice   +12 more
wiley   +1 more source

Assessing phytoplankton community composition using in-situ multispectral excitation fluorescence and potential for application to BGC-Argo profiling floats [PDF]

open access: gold
Flavien Petit   +13 more
openalex   +1 more source

Reconstructing Environmental and Microbial Ecosystem Changes Across the Permian–Triassic Mass Extinction at Lusitaniadalen, Svalbard

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 2, February 2026.
Abstract The Permian–Triassic environmental crisis triggered fundamental changes in marine ecosystems, culminating in the most severe biodiversity crisis of the Phanerozoic. Yet, the environmental and geochemical conditions governing the crisis and ecosystem recovery remain debated.
S. Z. Buchwald   +17 more
wiley   +1 more source

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