搜索结果: 1-15 共查到“海洋科学 uptake”相关记录67条 . 查询时间(0.094 秒)
A Time-Series View of Changing Ocean Chemistry Due to Ocean Uptake of Anthropogenic CO2 and Ocean Acidification
Time-Series View Changing Ocean Chemistry Due Ocean Uptake Anthropogenic CO2 Ocean Acidification
2015/7/17
Sustained observations provide critically needed data and understanding not only about ocean warming and water cycle reorganization (e.g., salinity changes), ocean eutrophication, and ocean deoxygenat...
Nitrate uptake by foraminifera and use in conjunction with endobionts under anoxic conditions
endobionts anoxic conditions
2014/11/28
Among eukaryotes, some benthic foraminiferal species have been reported to be capable of nitrate respiration,
although little is known about their denitrification processes. In this study, we incubat...
Nitrate uptake by foraminifera and use in conjunction with endobionts under anoxic conditions
Nitrate uptake foraminifera endobionts anoxic conditions
2014/10/16
Among eukaryotes, some benthic foraminiferal species have been reported to be capable of nitrate respiration, although little is known about their denitrification processes. In this study, we incubate...
Production of dissolved organic matter by phytoplankton and its uptake by heterotrophic prokaryotes in large tropical lakes
Production of dissolved organic matter by phytoplankton heterotrophic prokaryotes large tropical lakes
2014/7/10
In pelagic ecosystems, phytoplankton extracellular release can extensively subsidize the heterotrophic prokaryotic carbon demand. Time-course experiments were carried out to quantify primary productio...
Thalassia testudinum phosphate uptake kinetics at low in situ concentrations using a 33 P radioisotope technique
Thalassia testudinum phosphate uptake situ concentrations
2014/4/23
A new 33
P-tracer technique was used to define low-level phosphate (Pi) uptake kinetics for a dominant tropical
seagrass, Thalassia testudinum. We established seagrass Pi uptake kinetics at hi...
Trait-based models of nutrient uptake in microbes extend the MichaelisMenten framework
Trait-based models nutrient uptake microbes extend MichaelisMenten framework
2014/4/2
In microbial competition theory, the Michaelis-Menten (MM) half-saturation coefficient is often considered to be a trait of an organism defining competitive strength in a trade-off conflict with maxim...
Ammonium uptake and dinitrogen fixation by the unicellular nanocyanobacterium Crocosphaera watsonii in nitrogen-limited continuous cultures
nanocyanobacterium Crocosphaera Ammonium uptake
2014/4/2
Ammonium uptake and nitrogen (N) fixation of the unicellular nanocyanobacterium Crocosphaera watsonii
isolated from the western subtropical North Pacific were determined in N-limited continuous cultu...
Effects of a wind-driven cross-shelf large river plume on biological production and CO2 uptake on the Gulf of Mexico during spring
biological production Mexico during spring
2014/4/2
The plume of Mississippi and Atchafalaya River system (MARS) is normally confined to the continental shelf
and extends westward. During March 2010, while weather in North America was dominated by unu...
The role of hydrodynamics in structuring in situ ammonium uptake within a submerged macrophyte community
nutrients water fl ow patchiness Cymodocea nodosa Caulerpa prolifera
2014/4/1
In low-nutrient, macrophyte-dominated coastal zones, benthic ammonium (NH4
+
) uptake may be influenced by the structural properties of plant canopies via their effect on near-bed hydrodynamic...
The effect of pH on the uptake of zinc and cadmium in marine phytoplankton: Possible role of weak complexes
The effect of pH on the uptake zinc cadmium marine phytoplankton Possible role of weak complexes
2014/4/2
In natural samples from the New Jersey coast and the Gulf of Alaska, zinc (Zn) and cadmium (Cd) uptake rates by phytoplankton decreased on average about 30%as pH was decreased from 8.5 to 7.9 or 7.7, ...
No limit? The multiphasic uptake of silicic acid by benthic diatoms
No limit multiphasic uptake silicic acid benthic diatoms
2014/4/18
Silicic-acid uptake kinetics for a field population of benthic diatoms were examined using a radioisotope tracer over a concentration range of 0–300mmol L21. The microphytobenthos half saturation cons...
Dissolved inorganic and organic phosphorus uptake inTrichodesmiumand the microbial community: The importance of phosphorus ester in the Sargasso Sea
Dissolved inorganic organic phosphorus uptake Trichodes mium microbial community phosphorus ester the Sargasso Sea
2014/4/17
The dynamics and relative importance of inorganic phosphate (Pi) and dissolved organic phosphorus (DOP) uptake were examined inTrichodesmiumand the microbial community.Trichodesmium DOP and Pi uptake ...
A discrepancy between predictions of saturating nutrient uptake models and nitrogen-to-phosphorus stoichiometry in the surface ocean
saturating nutrient uptake models nitrogen-to-phosphorus stoichiometry the surface ocean
2014/4/17
We derive a simple prediction about euphotic zone N : P stoichiometry from a large class of models that use saturating nutrient uptake functions to characterize N and P acquisition by phytoplankton. T...
Variable sediment oxygen uptake in response to dynamic forcing
dynamic forcing Variable sediment oxygen
2014/4/16
Seiche-induced turbulence and the vertical distribution of dissolved oxygen above and within the sediment were
analyzed to evaluate the sediment oxygen uptake rate (JO2
), diffusive boundary layer t...
Peptide hydrolysis and the uptake of dipeptides by phytoplankton
Peptide hydrolysis the uptake of dipeptides phytoplankton
2014/4/18
Rates of peptide hydrolysis (using the fluorescent substrate, lucifer yellow anhydride-labeled tetra-alanine) and dipeptide uptake (using dually labeled, 15N and 13C, dialanine) were measured in phyto...