搜索结果: 61-75 共查到“海洋科学 production”相关记录151条 . 查询时间(0.11 秒)
Net community production in the deep euphotic zone of the subtropical North Pacific gyre from glider surveys
the subtropical North Pacific gyre Net community production
2014/4/18
Seagliders, deployed through most of 2005 in the subtropical North Pacific gyre, made measurements of
temperature, salinity, and dissolved oxygen to quantify net community production (NCP) at Station...
Could stratospheric ozone depletion lead to enhanced aquatic primary production in the polar regions?
Could stratospheric ozone depletion enhanced aquatic primary production the polar regions?
2014/4/18
We study the effects of ozone depletion on primary production in ice-covered and open polar waters using a spectral radiative transfer model combined with a parameterization of the inhibition of marin...
Dissolved organic matter and bacterial production and respiration in the sea-surface microlayer of the open Atlantic and the western Mediterranean Sea
Dissolved organic matter bacterial production respiration in the sea-surface microlayer open Atlantic western Mediterranean Sea
2014/4/18
The sea-surface microlayer (SML) is the boundary layer between the ocean and the atmosphere. We measured bacterial production and respiration along with dissolved organic carbon (DOC), nitrogen (DON),...
Ammonium regeneration and nitrification rates in the oligotrophic Atlantic Ocean: Implications for new production estimates
Ammonium regeneration nitrification rates oligotrophic Atlantic Ocean Implications for new production estimates
2014/4/18
N regeneration was measured on a transect of the North and South Atlantic, from the United Kingdom to the Falkland Islands, that included extreme oligotrophic conditions. NH4+ and NO{2 oxidation rates...
Characterization of methanogenic Archaea and stable isotope fractionation during methane production in the profundal sediment of an oligotrophic lake (Lake Stechlin, Germany)
methanogenic Archaea stable isotope fractionation during methane production profundal sediment an oligotrophic lake
2014/4/22
The methanogenic archaeal community, methane production, and carbon isotopic fractionation were studied in the profundal sediments of oligotrophic Lake Stechlin. Because the water column of oligotroph...
Changes in microcystin production in cyanobacteria exposed to zooplankton at different population densities and infochemical concentrations
microcystin production cyanobacteria exposed to zooplankton different population densities infochemical concentrations
2014/4/22
We investigated microcystin (MC) production by four cyanobacterial strains (three Microcystis aeruginosa and one Planktothrix agardhii) in response to different grazer densities (direct exposure: zero...
Variable effects of marine-derived nutrients on algal production in salmon nursery lakes of Alaska during the past 300 years
marine-derived nutrients algal production salmon nursery lakes Alaska during the past 300 years
2014/4/22
We measured historical changes in sedimentary δ15N and fossil pigments in four lakes with anadromous semelparous salmon and two reference lakes to quantify the degree to which the flux of marine-deriv...
Determining net dissolved organic carbon production in the hydrographically complex western Arctic Ocean
Determining net dissolved organic hydrographically complex western Arctic Ocean
2014/4/22
Each spring and summer, the Chukchi Sea in the western Arctic Ocean experiences a short but intense
phytoplankton bloom that is controlled by sea ice cover, nutrient availability, and river runoff. D...
The effects of grazing by the snail, Lymnaea elodes, on benthic N2 fixation and primary production in oligotrophic, arctic lakes
snail Lymnaea elodes on benthic N2 fixation primary production oligotrophic arctic lakes
2014/4/21
This study assessed whether grazing by the snail, Lymnaea elodes, limits benthic dinitrogen (N2) fixation and primary production in nitrogen (N)-limited oligotrophic lakes near Toolik Field Station on...
Light-stimulated production of dissolved DMSO by a particle-associated process in the Ross Sea, Antarctica
Light-stimulated production dissolved DMSO a particle-associated process the Ross Sea Antarctica
2014/4/21
Dimethylsulfoxide (DMSO) is an abundant form of methylated sulfur in marine systems and it is known to be produced from dimethylsulfide (DMS). Using radiolabeled 35S-DMS and gas chromatography techniq...
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...
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...
Different coupling of dissolved amino acid, protein, and carbohydrate turnover to heterotrophic picoplankton production in the Southern Ocean in austral summer and fall
Different coupling of dissolved amino acid protein carbohydrate turnover heterotrophic picoplankton production Southern Ocean in austral summer and fall
2014/4/22
We assessed growth dynamics of heterotrophic picoplankton and concentrations and turnover of dissolved protein, amino acids, and neutral monosaccharides in the Atlantic sector of the Southern Ocean in...
Production of dissolved organic carbon by sloppy feeding in the copepods Acartia tonsa, Centropages typicus, and Temora longicornis
Production of dissolved organic carbon sloppy feeding the copepods Acartia tonsa Centropages typicus Temora longicornis
2014/4/22
With 14C-labeled phytoplankton as tracer, dissolved organic carbon (DOC) produced by sloppy feeding was measured for three species of marine copepods (Acartia tonsa, Centropages typicus, and Temora lo...
Photochemical production of dissolved organic carbon from resuspended sediments
Photochemical production dissolved organic carbon resuspended sediments
2014/5/5
A series of controlled photolysis experiments using simulated sunlight was conducted in the presence and absence of estuarine bottom sediments to address the role of sediment resuspension on dissolved...