Results 21 to 30 of about 22,372 (223)

Regionally disparate ecological responses to microplastic slowing of faecal pellets yields coherent carbon cycle response

Frontiers in Marine Science, 2023
Microplastic is a ubiquitous marine pollutant whose small dimensions make it biologically available to phytoplankton and zooplankton. These organisms are crucial as the basis of the marine food web and for the export of organic material in the form of ...
Karin Kvale, Karin Kvale, Claire Hunt, Aidan James, Wolfgang Koeve   +4 more
doaj   +1 more source

Investigating controls on sea ice algal production using E3SMv1.1-BGC

Annals of Glaciology, 2020
We present the analysis of global sympagic primary production (PP) from 300 years of pre-industrial and historical simulations of the E3SMv1.1-BGC model.
Nicole Jeffery, Mathew E. Maltrud, Elizabeth C. Hunke, Shanlin Wang, Jon Wolfe, Adrian K. Turner, Susannah M. Burrows, Xiaoying Shi, William H. Lipscomb, Wieslaw Maslowski, Kate V. Calvin   +10 more
doaj   +1 more source

Ocean acidification and warming modify stimulatory benthos effects on sediment functioning: An experimental study on two ecosystem engineers

Frontiers in Marine Science, 2023
Many macrofauna have a stimulatory effect on sediment functioning through their burrowing, feeding and irrigation activities. Here, we investigated the single and combined effect of ocean acidification and warming on the stimulatory effect of two key ...
Ellen Vlaminck, Tom Moens, Ulrike Braeckman, Carl Van Colen   +3 more
doaj   +1 more source

Concentrations and Fractionation of Carbon, Iron, Sulfur, Nitrogen and Phosphorus in Mangrove Sediments Along an Intertidal Gradient (Semi-Arid Climate, New Caledonia)

Journal of Marine Science and Engineering, 2015
In mangrove ecosystems, strong reciprocal interactions exist between plant and substrate. Under semi-arid climate, Rhizophora spp. are usually predominant, colonizing the seashore, and Avicennia marina develops at the edge of salt-flats, which is the ...
Jonathan Deborde, Cyril Marchand, Nathalie Molnar, Luc Della Patrona, Tarik Meziane   +4 more
doaj   +1 more source

Physical and biogeochemical drivers of solute mobilization and flux through the critical zone after wildfire

Frontiers in Water, 2023
A nine-year time series of nutrient cation and anion concentration and efflux from three forested catchments in the Jemez River Basin Critical Zone Observatory (JRB-CZO) in northern New Mexico was used to quantify the pulse of chemical denudation ...
Rodrigo Andrés Sánchez, Rodrigo Andrés Sánchez, Thomas Meixner, Tirthankar Roy, Paul Ty Ferré, Martha Whitaker, Jon Chorover   +6 more
doaj   +1 more source

Influence of effluents from a Wastewater Treatment Plant on nutrient distribution in a coastal creek from southern Brazil

Brazilian Archives of Biology and Technology, 2008
The hypothesis that effluents treated through activated sludge process cause changes in nutrient biogeochemistry of receiving water bodies was investigated in Vieira creek, southern Brazil.
Isaac Rodrigues Santos, Ronaldo Cataldo Costa, Ubiratan Freitas, Gilberto Fillmann   +3 more
doaj   +1 more source

Nutrient- and Climate-Induced Shifts in the Phenology of Linked Biogeochemical Cycles in a Temperate Estuary

Frontiers in Marine Science, 2018
The response of estuarine ecosystems to long-term changes in external forcing is strongly mediated by interactions between the biogeochemical cycling of carbon, oxygen, and inorganic nutrients.
Jeremy M. Testa, Rebecca R. Murphy, Damian C. Brady, William M. Kemp   +3 more
doaj   +1 more source

Evidence of Downregulation in Atmospheric Nitrogen-Fixation Associated with Native Hawaiian Sugarcane (Saccharum officinarum L.) Cultivars

Plants, 2023
The study of nitrogen fixation in sugarcane has a long history that has demonstrated high potential but with substantial variation in results. This 32-month study sought to assess the response of nitrogen fixation associated with sugarcane (Saccharum ...
Noa Lincoln, Reinier Paul Santiago, Derek Tatum, Angel R. Del Valle-Echevarria   +3 more
doaj   +1 more source

Spatial and temporal metagenomics of river compartments reveals viral community dynamics in an urban impacted stream

Frontiers in Microbiomes, 2023
Although river ecosystems constitute a small fraction of Earth’s total area, they are critical modulators of microbially and virally orchestrated global biogeochemical cycles.
Josué Rodríguez-Ramos, Angela Oliverio, Angela Oliverio, Mikayla A. Borton, Mikayla A. Borton, Robert Danczak, Birgit M. Mueller, Hanna Schulz, Hanna Schulz, Jared Ellenbogen, Rory M. Flynn, Rebecca A. Daly, LeAundra Schopflin, Michael Shaffer, Amy Goldman, Joerg Lewandowski, Joerg Lewandowski, James C. Stegen, Kelly C. Wrighton   +18 more
doaj   +1 more source

Linkages between geochemistry and microbiology in a proglacial terrain in the High Arctic

Annals of Glaciology, 2018
Proglacial environments are ideal for studying the development of soils through the changes of rocks exposed by glacier retreat to weathering and microbial processes. Carbon (C) and nitrogen (N) contents as well as soil pH and soil elemental compositions
Robin Wojcik, Jonathan Donhauser, Beat Frey, Stine Holm, Alexandra Holland, Alexandre M. Anesio, David A. Pearce, Lucie Malard, Dirk Wagner, Liane G. Benning   +9 more
doaj   +1 more source