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Using the hidden isotopic heterogeneity in phyto- and zooplankton to unmask disparity in trophic carbon transfer
isotopic heterogeneity phyto- and zooplankton trophic carbon transfer
2014/5/22
In this study, we show that natural phototrophic populations can be probed individually for their in situ δ13C signature by linking fluorescence-activated cell sorting and isotope-ratio mass spectrome...
Cycling of colloidal organic carbon and nitrogen during an estuarine phytoplankton bloom
colloidal organic carbon and nitrogen estuarine phytoplankton bloom
2014/5/22
To establish the influence of phytoplankton blooms on the cycling of dissolved and particulate species of organic carbon and nitrogen, we conducted a field study during a series of blooms in a coastal...
Planktonic carbon cycling and transport in surface waters of the highly urbanized Hudson River estuary
Planktonic carbon cycling and transport surface waters highly urbanized Hudson River estuary
2014/5/21
We examined variations in organic carbon (OC) pools and microplanktonic carbon fluxes at three stations in the Hudson River estuary during 12 cruises between Octobers of 1996 and 1998. Phytoplankton b...
Modeling carbon to nitrogen and carbon to chlorophyll a ratios in the ocean at low latitudes: Evaluation of the role of physiological plasticity
nitrogen and carbon chlorophyll a ratios low latitudes physiological plasticity
2014/5/21
Simulation modeling provides a means for testing the limits of our quantitative understanding of the factors that control phytoplankton biomass, growth rate, and primary productivity in the sea. We si...
Increased photoreactivity of DOC by acidification: Implications for the carbon cycle in humic lakes
Increased photoreactivity DOC by acidification Implications for the carbon cycle humic lakes
2014/5/20
Effects of ultraviolet (UV)-B radiation and acidification on pelagic carbon flux in a humic lake (dissolved organic carbon [DOC] ~15 mg C L21) were studied in a mesocosm experiment during the summer o...
Temporal decoupling of carbon and nitrogen dynamics in a mesocosm diatom bloom
Temporal decoupling carbon and nitrogen dynamics mesocosm diatom bloom
2014/5/27
Flows of the major biogeochemical elements (C, N, P, Si) and of transparent exopolymer particles (TEP) were traced during a bloom of a natural assemblage of marine diatoms in a mesocosm (1 m3) to dete...
Relative importance of carbon sources for macroinvertebrates in a Rocky Mountain stream
Relative importance carbon sources macroinvertebrates Rocky Mountain stream
2014/5/27
Estimates of carbon sources, as determined from ratios of stable isotopes, were used in conjunction with estimates of secondary production to determine the relative contribution of algal carbon to mac...
Stable carbon and nitrogen isotope composition of aquatic and terrestrial plants of the San Francisco Bay estuarine system
Stable carbon nitrogen isotope composition aquatic and terrestrial plants San Francisco Bay estuarine system
2014/5/27
We report measurements of seasonal variability in the C-N stable isotope ratios of plants collected across the habitat mosaic of San Francisco Bay, its marshes, and its tributary river system. Analyse...
Carbon sources for demersal fish in the western Seto Inland Sea, Japan, examined by d13C and d15N analyses
Carbon sources demersal fish the western Seto Inland Sea Japan examined by d13C d15N analyses
2014/5/27
The relative importance of benthic and pelagic primary production for demersal fish and some invertebrates in the western Seto Inland Sea of Japan was examined using carbon and nitrogen stable isotope...
Sources of inorganic carbon for phytoplankton in the eastern Subtropical and Equatorial Pacific Ocean
inorganic carbon phytoplankton eastern Subtropical Equatorial Pacific Ocean
2014/5/27
We present the results of a field study examining inorganic carbon utilization by phytoplankton assemblages in the eastern Subtropical and Equatorial Pacific Ocean. Data from isotope disequilibrium ex...
Sources of inorganic carbon for photosynthesis in a strain of Phaeodactylum tricornutum
inorganic carbon photosynthesis a strain of Phaeodactylum tricornutum
2014/5/27
Diatoms are an important functional group of marine phytoplankton because of their role in the fixation of atmospheric carbon dioxide (CO2) and transfer of organic carbon to deep waters. Carbon-concen...
Variability and control of carbon consumption, export, and accumulation in marine communities
Variability control carbon consumption export accumulation marine communities
2014/5/26
Elucidating the extent and controls of the routes followed by primary production in marine communities (i.e., consumption by herbivores, decomposition, transportation of plant material beyond the comm...
Ophiuroid growth within deep-sea sediment traps: A problem for carbon flux measurements at continental margins
Ophiuroid growth deep-sea sediment traps A problem for carbon flux measurements continental margins
2014/5/26
Large numbers of postlarvae of the bathyal ophiuroid Ophiocten gracilis were collected by two time-series sediment traps moored on the continental slope of the NE Atlantic for 102 d at 1,000 and 1,400...
Synchronous variation of dissolved organic carbon and color in lakes
Synchronous variation dissolved organic carbon color in lakes
2014/5/26
Temporal variation in dissolved organic carbon (DOC) and water color (light absorption at 440 nm) was measured in 20 lakes in northern Michigan that varied in DOC, pH, morphometry, and relative produc...
Coulometric carbon-based respiration rates and estimates of bacterioplankton growth efficiencies in Massachusetts Bay
Coulometric carbon-based respiration rates bacterioplankton growth efficiencies Massachusetts Bay
2014/6/9
Heterotrophic bacterioplankton production rates have been measured in many aquatic ecosystems over the last two decades, whereas measurements of bacterioplankton respiration rates have been scarce. Th...