Results 1 to 10 of about 40,309 (296)

A global ocean dissolved organic phosphorus concentration database (DOPv2021) [PDF]

Scientific Data, 2022
Dissolved organic phosphorus (DOP) concentration distributions in the global surface ocean inform our understanding of marine biogeochemical processes such as nitrogen fixation and primary production. The spatial distribution of DOP concentrations in the
Zhou Liang, Kelly McCabe, Sarah E. Fawcett, Heather J. Forrer, Fuminori Hashihama, Catherine Jeandel, Dario Marconi, Hélène Planquette, Mak A. Saito, Jill A. Sohm, Rachel K. Thomas, Robert T. Letscher, Angela N. Knapp   +12 more
doaj   +6 more sources

Dissolved organic phosphorus uptake by marine phytoplankton is enhanced by the presence of dissolved organic nitrogen [PDF]

Journal of Experimental Marine Biology and Ecology, 2020
Abstract Organic nutrients can constitute the major fractions (up to 70%) of aquatic nitrogen (N) and phosphorus (P), but their cycling is poorly understood relative to the inorganic pools. Some phytoplankton species access P from the dissolved organic phosphorus (DOP) pool through expression of alkaline phosphatase (AP), which hydrolyses ...
Mark F Fitzsimons, Ian Probert, Andrew P Rees   +2 more
exaly   +4 more sources

Bioavailability of Dissolved Organic Phosphorus in Temperate Lakes [PDF]

Frontiers in Environmental Science, 2018
Freshwater aquatic systems are biogeochemical hotspots, with heterotrophic bacteria rapidly cycling the compounds that pass through them. P is a key nutrient that controls primary production in many freshwater ecosystems and is important for ...
Seth K. Thompson, James B. Cotner
doaj   +2 more sources

Dissolved organic phosphorus bond-class utilization by Synechococcus [PDF]

FEMS Microbiology Ecology
Abstract Dissolved organic phosphorus (DOP) contains compounds with phosphoester, phosphoanhydride, and phosphorus–carbon bonds. While DOP holds significant nutritional value for marine microorganisms, the bioavailability of each bond-class to the widespread cyanobacterium Synechococcus remains largely unknown.
Emily M Waggoner, Kahina Djaoudi, Julia M Diaz, Solange Duhamel   +3 more
openaire   +3 more sources

Mechanism and Characteristics of Phosphorus Release from Sediments in Drawdown Zone Under Inundation/Drying Cycles [PDF]

Toxics
Phosphorus release from sediments significantly influences eutrophication in shallow lakes; however, its dynamics in drawdown zones under alternating inundation and drying cycles remain understudied.
Huanhuan Yang, Fulan Zhang, Jing Liu, Dayong Cui   +3 more
doaj   +2 more sources

Transitions in Dissolved Organic Phosphorus and Dissolved Organic Carbon Across a Freshwater Estuary Gradient

Journal of Geophysical Research G: Biogeosciences, 2023
AbstractDespite the significant role that dissolved organic phosphorus (DOP) plays in ecosystem productivity, efforts to characterize inputs of phosphorus (P) into lakes have largely ignored P fractions complexed to dissolved organic matter (DOM). To address this gap, we characterized DOP and DOM along a transect of a Lake Erie tributary (Kettle Creek)
Sarah S E KING, Paul C Frost, Susan B Watson   +2 more
exaly   +2 more sources

Sargasso Sea phosphorus biogeochemistry: an important role for dissolved organic phosphorus (DOP) [PDF]

Biogeosciences, 2010
Inorganic phosphorus (SRP) concentrations in the subtropical North Atlantic are some of the lowest in the global ocean and have been hypothesized to constrain primary production.
M. W. Lomas, A. L. Burke, D. A. Lomas, D. W. Bell, C. Shen, S. T. Dyhrman, J. W. Ammerman   +6 more
doaj   +5 more sources

Atmospheric deposition and river runoff stimulate the utilization of dissolved organic phosphorus in coastal seas [PDF]

Nature Communications
In coastal seas, the role of atmospheric deposition and river runoff in dissolved organic phosphorus (DOP) utilization is not well understood. Here, we address this knowledge gap by combining microcosm experiments with a global approach considering the ...
Haoyu Jin, Chao Zhang, Siyu Meng, Qin Wang, Xiaokun Ding, Ling Meng, Yunyun Zhuang, Xiaohong Yao, Yang Gao, Feng Shi, Thomas Mock, Huiwang Gao   +11 more
doaj   +2 more sources

Spatial variability of biogenic elements and organic carbon content in the tributaries of Lake Baikal [PDF]

E3S Web of Conferences, 2020
The article considers the features of biogenic elements and organic carbon (Corg) content spatial variability in the Lake Baikal tributaries. The role of hydrological conditions and landscape-geochemical features in the chemical elements flow formation ...
Sharapova Ekaterina, Efimova Ludmila, Denisova Irina, Ermekova Aida, Lychagin Mikhail, Chalov Sergey   +5 more
doaj   +1 more source

Evidence for the leaching of dissolved organic phosphorus to depth

Science of The Total Environment, 2021
Phosphorus (P) can leach from topsoil in inorganic and organic forms. While some evidence has shown inorganic P (orthophosphate) can leach to depth in some soils, less is known of dissolved organic P (DOP). This is not helped by a paucity of DOP data for groundwater.
McDowell, Rich, Worth, Wayne, Carrick, Sam   +2 more
openaire   +3 more sources