Results 121 to 130 of about 128,623 (197)

Seasonal Variations in Aerosol Trace Element Source Contributions and Deposition Fluxes to the North Pacific Subtropical Gyre

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 10, October 2026.
Abstract Trace elements deposited in the marine environment affect ocean biogeochemistry in numerous, complex ways. This study quantifies seasonal aerosol trace element (TE) fluxes and evaluates their variability and potential sources over a 2‐year period in the North Pacific subtropical gyre (NPSG). We established the Hawaii Aerosol Time Series (HATS),
C. Kollman   +6 more
wiley   +1 more source

Taxonomic difference in marine bloom-forming phytoplanktonic species affects the dynamics of both bloom-responding prokaryotes and prokaryotic viruses

open access: yesmSystems
The production of dissolved organic matter during phytoplankton blooms and consumption by heterotrophic prokaryotes promote marine carbon biogeochemical cycling.
Hiroaki Takebe   +6 more
doaj   +1 more source

Surface Chlorophyll‐a Trends in the Mediterranean Sea: Seasonal Bloom Dynamics and Drivers

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 10, October 2026.
Abstract Chlorophyll‐a (Chl‐a) is the most widely used proxy for phytoplankton biomass, bloom intensity, and trophic status in marine ecosystems. We analyzed 27 years (1998–2024) of 1 km‐resolution satellite‐derived Chl‐a data across the Mediterranean Sea and evaluated long‐term trends, bloom phenology, and seasonal variability in relation to sea ...
Christian Marchese   +3 more
wiley   +1 more source

Seasonal and Spatial Variability of Silicon Cycle in Godavari Tidal River Zone

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 10, October 2026.
Abstract Dam regulation of tropical monsoonal rivers enhances seasonal contrasts in the tidal river zone (TRZ) hydrology, altering the delivery of dissolved silicon (DSi) to the coastal ocean. Here, we identify the drivers of Si cycling in the Godavari TRZ and quantify their implications for Si delivery to the Bay of Bengal (BoB). We analyzed elemental
Sarath Pullyottum Kavil   +6 more
wiley   +1 more source

Seasonal to Decadal Patterns in Sea Ice and Turbidity at Arctic River Mouths

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 10, October 2026.
Abstract Rapid warming of the Arctic is accelerating riverine delivery of freshwater, heat, and sediment to the Arctic Ocean. River mouth zones are especially vulnerable to this change, as these dynamic land–ocean interfaces are hotspots of primary productivity.
E. Tofte, N. Lumbert, A. Piliouras
wiley   +1 more source

Estrutura e dinâmica do fitoplâncton e fatores direcionadores da dominância de cianobactérias em uma lagoa rasa subropical (Lagoa do Peri, SC) [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas. Programa de Pós-Graduação em Ecologia, Florianópolis, 2013.Modificações na estrutura da comunidade fitoplanctônica são indicadores sensíveis de alterações ...
Silveira, Mônica Hessel
core  

Pan-Arctic view of ice-edge phytoplankton blooms [PDF]

open access: yes, 2010
Perrette, Mahe   +3 more
core   +2 more sources

Evaluation of Timing and Amplitude Biases in the Controls of Simulated Southern Ocean pCO2

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 10, October 2026.
Abstract The Southern Ocean is a major sink for atmospheric carbon dioxide and critical to the current and future carbon cycle. This net annual CO2 ${\text{CO}}_{2}$ flux reflects the balance of strong seasonal variability characterized by opposing periods of winter outgassing and summer uptake. Using a simple framework, we evaluate how model biases in
Seth M. Bushinsky   +11 more
wiley   +1 more source

Effects of Reduced Precipitation and Water Level Variability on Phytoplankton Dynamics and Thermal Structure in a Large Tropical Reservoir

open access: yesWater Resources Research, Volume 62, Issue 10, October 2026.
Abstract Drought is one of the most severe and complex natural hazards causing changes in water balance and impeding crucial water‐dependent ecosystem services. Over the last 25 years, multiple severe droughts linked to El Niño events have affected the Zambian and Zimbabwean regions.
Anna Joelle Greife   +11 more
wiley   +1 more source

Bacterial Contribution to Hydrogen Peroxide Decomposition in Lake Erie Cyanobacterial Harmful Algal Bloom Communities Is Dependent on Bloom Stage

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 5, October 2026.
A seasonal time series metatranscriptome dataset suggests that neutralising hydrogen peroxide in Microcystis blooms requires a complex division of labour that is further complicated by seasonality and bloom development. ABSTRACT Cyanobacterial harmful algal blooms (cHABs) are expanding globally and often involve toxin‐producing species such as ...
Chelsea E. Donovan   +9 more
wiley   +1 more source

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