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Partitioning of organic production in marine plankton communities: The effects of inorganic nutrient ratios and community composition on new dissolved organic matter
Partitioning of organic production marine plankton communities The effects of inorganic nutrient ratios community composition new dissolved organic matter
2014/4/23
We investigated the partitioning of carbon, nitrogen, and phosphorus between particulate and dissolved production using 11-m3 marine mesocosms (bags) in a Norwegian fjord with a salinity of 28.3, a ch...
Biodiversity and food web structure influence short-term accumulation of sediment organic matter in an experimental seagrass system
Biodiversity and food web structure influence short-term accumulation of sediment organic matter in an experimental seagrass system
2014/4/23
We tested the effects of grazer diversity and food chain length on the quantity and quality of accumulated sediment organic matter (SOM) in experimental eelgrass (Zostera marina) mesocosms. By use of ...
Diagenetic and sedimentological controls on the composition of organic matter preserved in California Borderland Basin sediments
Diagenetic and sedimentological controls the composition of organic matter preserved California Borderland Basin sediments
2014/4/23
Compound-specific radiocarbon (14C) contents, stable carbon isotopes, and abundances of phytoplankton and vascular plant derived lipid biomarkers (alkenones and fatty acids) were obtained from Santa B...
Photochemically produced bioavailable nitrogen from biologically recalcitrant dissolved organic matter stimulates production of a nitrogen-limited microbial food web in the Baltic Sea
Photochemically produced bioavailable nitrogen biologically recalcitrant dissolved organic matter stimulates production nitrogen-limited microbial food web in the Baltic Sea
2014/4/22
Experiments were designed to assess whether the photochemical production of bioavailable nitrogen (N) from biologically recalcitrant dissolved organic nitrogen (DON) stimulates growth of N-limited pla...
Dissolved organic matter and persistence of the invasive zebra mussel (Dreissena polymorpha) under low food conditions
Dissolved organic matter persistence of the invasive zebra mussel Dreissena polymorpha under low food conditions
2014/4/22
To determine whether the ability of zebra mussels (Dreissena polymorpha) to absorb and metabolize a variety of dissolved organic compounds allows them to persist when food levels are too low to sustai...
Effects of upstream lakes on dissolved organic matter in streams
Effects of upstream lakes dissolved organic matter streams
2014/4/22
We examined the effects of upstream lakes on dissolved organic matter (DOM) quantity and the absorbance of ultraviolet (UV) radiation in the streams of northern Michigan. We assessed DOM concentration...
Effects of upstream lakes on dissolved organic matter in streams
Effects of upstream lakes dissolved organic matter in streams
2014/4/22
We examined the effects of upstream lakes on dissolved organic matter (DOM) quantity and the absorbance of ultraviolet (UV) radiation in the streams of northern Michigan. We assessed DOM concentration...
Variation in colloidal chromophoric dissolved organic matter in the Damariscotta Estuary, Maine
Variation in colloidal chromophoric dissolved organic matter the Damariscotta Estuary, Maine
2014/4/22
The relationship between chromophoric dissolved organic matter (CDOM), colloidal DOM (.1 kDa), and phytoplankton biomass in marine waters of the Damariscotta estuary, Maine, was studied using flow fie...
Dissolved organic matter in abyssal sediments: Core recovery artifacts
Dissolved organic matter abyssal sediments Core recovery artifacts
2014/4/22
We report measurements of pore-water dissolved organic carbon (DOC), dissolved organic nitrogen, total dissolved carbohydrates, dissolved free monosaccharides, and ammonium in recovered deep-sea sedim...
NASA Scientists Find Primordial Organic Matter in Tagish Lake Meteorite(图）
Organic Matter Solar System meteorite
2006/12/8
November 30, 2006，NASA researchers at Johnson Space Center, Houston have found organic materials that formed in the most distant reaches of the early Solar System preserved in a unique meteorite. The ...
Thermal stability responses of soil organic matter to long-term fertilization practices
Thermal stability responses soil organic matter long-term fertilization practices
2010/1/13
We used differential scanning calorimetry (DSC) to infer thermal properties of soil organic matter (SOM) in the static fertilization experiment in Bad Lauchstädt, Germany, which has been establis...
Bacterial release of dissolved organic matter during cell growth and decline: Molecular origin and composition
Bacterial release dissolved organic matter cell growth and decline Molecular origin and composition
2014/5/5
Heterotrophic bacterial growth and the chemical composition of dissolved organic matter (DOM) produced by bacteria from freshwater and marine environments were monitored during experiments with artifi...
Effects of salinity changes on the photodegradation and ultraviolet–visible absorbance of terrestrial dissolved organic matter
salinity changes photodegradation ultraviolet– visible absorbance terrestrial dissolved organic matter
2014/5/5
We performed laboratory studies to determine the effects of salinity on the photodegradation of dissolved organic matter (DOM) from the Great Dismal Swamp, Virginia, an important source of terrestrial...
Characterization of transport and deposition of terrestrial organic matter in the southern North Sea using the BIT index
transport and deposition terrestrial organic matter southern North Sea BIT index
2014/5/5
We have applied a recently introduced proxy, the BIT (branched and isoprenoid tetraether) index, to determine terrestrial organic matter (TOM) transport from the rivers Rhine and Meuse and their tribu...
Riverine input of macronutrients, iron, and organic matter to the coastal ocean off Oregon, U.S.A., during the winter
Riverine input macronutrients iron organic matter ocean off Oregon U.S.A. during the winter
2014/5/5
Three cross-shelf transects were conducted off northern Oregon in February, 2003, coincident with flooding of Coast Range rivers, to assess the riverine impact on coastal ocean biogeochemistry. During...