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Natural isotopic composition of carbon (d13 C) correlates with colony size in the planktonic cyanobacterium Gloeotrichia echinulata
Natural isotopic colony size
2014/4/18
To assess variability in carbon isotope signatures (d13
C) between and within populations under natural
conditions, with a particular emphasis on colony size, we repeatedly collected planktonic colo...
Organic matter diagenesis and bacterial contributions to detrital carbon and nitrogen in the Amazon River system
Organic matter diagenesis bacterial contributions
2014/4/18
Amino sugars and amino acids, including the bacterial biomarkers muramic acid and D-amino acids, were
measured to investigate the diagenetic alterations of and microbial contributions to detrital org...
Benthic biogeochemical cycling, nutrient stoichiometry, and carbon and nitrogen mass balances in a eutrophic freshwater bay
Benthic biogeochemical cycling nutrient stoichiometry
2014/4/18
Green Bay, while representing only ,7% of the surface area and ,1.4% of the volume of Lake Michigan,
contains one-third of the watershed of the lake, and receives approximately one-third of the total...
Photobiogeochemical cycling of carbon monoxide in the southeastern Beaufort Sea in spring and autumn
Photobiogeochemical cycling the southeastern Beaufort Sea
2014/4/17
We investigated the distribution, photoproduction, microbial uptake, and air–sea exchange of carbon
monoxide (CO), a key photoproduct of chromophoric dissolved organic matter (CDOM), in open waters o...
Controls on the seasonal and interannual dynamics of organic matter stable carbon isotopes in mesotrophic Lake Holzmaar, Germany
interannual dynamics mesotrophic Lake Holzmaar Germany
2014/4/17
We investigated the particulate organic matter (POM) flux and its stable carbon isotope composition in
response to changes in phytoplankton primary production and abiotic environmental affects in mes...
Autochthonous and allochthonous contributions to mesozooplankton diet in a tidal river and estuary: Integrating carbon isotope and fatty acid constraints
Autochthonous allochthonous contributions
2014/4/17
We examined the carbon sources used by bacteria and mesozooplankton in the Scheldt River and estuary
(Belgium, The Netherlands) using a combined stable isotope and fatty acid composition approach. Wa...
Microbially induced flocculation of allochthonous dissolved organic carbon in lakes
Microbially induced allochthonous dissolved organic carbon
2014/4/17
The flocculation of allochthonous dissolved organic carbon (DOC) in lakes was investigated in a series of
laboratory experiments. Flocculation was enhanced by increased temperatures, and addition of ...
Carbon sequestration and stoichiometry of motile and nonmotile green algae
Carbon sequestration nonmotile green algae
2014/4/17
Actively motile, flagellated phytoplankton taxa often exploit vertical gradients in the availability of light and
nutrients. The ability to move actively usually goes along with low investment in str...
Evidence for the role of methane-derived carbon in a free-flowing, lowland river food web
a free-flowing methane-derived carbon
2014/4/17
We measured the d13
C values of dominant primary consumers and their potential food sources in a
groundwater-fed lowland river. The d13
C of most consumers, such as Gammarus and Simulium, reflected...
Effects of climate on organic carbon and the ratio of planktonic to benthic primary producers in a subarctic lake during the past 45 years
organic carbon benthic primary producers
2014/4/17
The effects of climatic variables on lake-water total organic carbon (TOC) concentrations and benthic and
pelagic primary producers during the past 45 yr were assessed using the sediment records of t...
On the Influence of Pacific Ocean Temperatures on Atmospheric Carbon Dioxide Concentration at Ocean Weather Station P
sea surface temperatures atmospheric C02 Ocean Weather Station P
2009/2/10
The study presents an analysis of atmospheric CO2 measurements at Ocean Weather Station P (50°N, 145°W) and sea surface temperatures over the North Pacific for the period 1974–78. The results show tha...
Transient Response of a Global Ocean-Atmosphere Model to a Doubling of Atmospheric Carbon Dioxide
Transient Response Atmospheric Carbon Dioxide Global Ocean-Atmosphere Model
2008/12/27
The transient response of climate to an instantaneous increase in the atmospheric concentration of carbon dioxide has been investigated by a general circulation model of the coupled ocean-atmosphere-l...
Incorporation and burial of carbon from settling cyanobacterial blooms by deposit-feeding macrofauna
Incorporation and burial of carbon settling cyanobacterial blooms deposit-feeding macrofauna
2014/4/21
Summer blooms of filamentous, nitrogen-fixing cyanobacteria are typical of the Baltic Sea, and recent findings indicate that cyanobacteria may be an important food source for the benthos below the eup...
A comparative study of carbon dioxide degassing in river- and marine-dominated estuaries
A comparative study of carbon dioxide degassing in river marine-dominated estuaries
2014/4/21
The partial pressure of carbon dioxide (pCO2), concentration of total dissolved inorganic carbon, and total alkalinity were measured at both high tide and low tide in the surface water of three Georgi...
Large, non-Redfieldian drawdown of nutrients and carbon in the extratropical North Atlantic Ocean (46uN): Evidence for dinitrogen fixation?
non-Redfieldian drawdown of nutrients carbon
2014/4/21
Considerable drawdown of total dissolved inorganic carbon (CT) and oversaturation of oxygen (O2
) within a
cold (,15uC) oligotrophic eddy in the extratropical North Atlantic Ocean (46uN, 20.5uW) ind...