搜索结果: 46-60 共查到“海洋生物学 phytoplankton”相关记录154条 . 查询时间(0.268 秒)
Hydrodynamic control of phytoplankton loss to the benthos in an estuarine environment
Hydrodynamic control phytoplankton loss to the benthos estuarine environment
2014/4/18
Field experiments were undertaken to measure the influence of hydrodynamics on the removal of phytoplankton by benthic grazers in Suisun Slough, North San Francisco Bay. Chlorophyll a concentration bo...
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...
Enhanced viral production and infection of bacterioplankton during an iron-induced phytoplankton bloom in the Southern Ocean
Enhanced viral production infection of bacterioplankton iron-induced phytoplankton bloom Southern Ocean
2014/4/18
We followed the viral response to Fe-enrichment over 3 weeks during the second iron-enrichment experiment (EisenEx) in the Southern Ocean. Although viral abundance increased in a rather constant way d...
Influence of water-column depth and mixing on phytoplankton biomass, community composition, and nutrients
Influence of water-column depth mixing on phytoplankton biomass community composition nutrients
2014/4/21
We independently manipulated mixing intensity (strong artificial mixing vs. background turbulence) and water-column depth (2 m, 4 m, 8 m, and 12 m) in order to explore their separate and combined effe...
Macro- to fine-scale spatial and temporal distributions and dynamics of phytoplankton and their environmental driving forces in a small montane lake in southern California, USA
Macro- to fine-scale spatial temporal distributions dynamics of phytoplankton their environmental driving forces small montane lake southern California USA
2014/5/16
A wireless network of buoys, two autonomous robotic boats, and an autonomous tethered vertical profiling system were used to characterize phytoplankton dynamics and spatiotemporal changes in chemical ...
The influence of dissolved organic carbon on bacterial phosphorus uptake and bacteria-phytoplankton dynamics in two Minnesota lakes
dissolved organic carbon bacterial phosphorus uptake bacteria-phytoplankton dynamics two Minnesota lakes
2014/4/21
The balance of production in any ecosystem is dependent on the flow of limiting nutrients into either the autotrophic or heterotrophic components of the food web. To understand one of the important co...
Relative influence of nitrogen and phosphorous availability on phytoplankton physiology and productivity in the oligotrophic sub-tropical North Atlantic Ocean
nitrogen and phosphorous availability phytoplankton physiology and productivity the oligotrophic sub-tropical North Atlantic Ocean
2014/4/21
Nutrient addition bioassay experiments were performed in the low-nutrient, low-chlorophyll oligotrophic subtropical North Atlantic Ocean to investigate the influence of nitrogen (N), phosphorus (P), a...
Physiological steady state of phytoplankton in the field? An example based on pigment profile of Emiliania huxleyi (Haptophyta) during a light shift
Physiological steady state phytoplankton pigment profile Emiliania huxleyi a light shift
2014/4/21
A calcifying strain of Emiliania huxleyi was used to study the photoacclimation process during a shift from low (LL) to high (HL) photon flux density (PFD) under nutrient-replete and pH- and [CO2]-con...
Resource levels, allometric scaling of population abundance, and marine phytoplankton diversity
Resource levels allometric scaling population abundance marine phytoplankton diversity
2014/4/21
We analyzed the relationship between population abundance and cell size in phytoplankton assemblages from coastal, shelf, and open-ocean environments. Our results show that across the entire size spec...
Optical scattering properties of phytoplankton: Measurements and comparison of various species at scattering angles between 1° and 170°
Optical scattering properties phytoplankton Measurements comparison various species scattering angles between 1° and 170°
2014/4/21
We describe the results of a laboratory scattering experiment performed to investigate differences in the optical scattering properties between five common phytoplankton species (Dunaliella tertiolect...
Predicting marine phytoplankton maximum growth rates from temperature:Improving on the Eppley curve using quantile regression
marine phytoplankton maximum growth rates temperature:Improving the Eppley curve quantile regression
2014/4/21
The Eppley curve describes an exponential function that defines the maximum attainable daily growth rate of marine phytoplankton as a function of temperature. The curve was originally fitted by eye as...
Relating phytoplankton photophysiological properties to community structure on large scales
phytoplankton photophysiological properties community structure large scales
2014/4/21
We analyzed a large dataset of simultaneous measurements of phytoplankton pigments, spectral specific absorption coefficient for phytoplankton [a*(l)], and photosynthesis versus irradiance (P versus E...
Identifying four phytoplankton functional types from space: An ecological approach
four phytoplankton functional types space An ecological approach
2014/4/21
Deriving maps of phytoplankton taxa based on remote sensing data using bio-optical properties of phytoplankton alone is challenging. A more holistic approach was developed using artificial neural netw...
Interactive influences of iron and light limitation on phytoplankton at subsurface chlorophyll maxima in the eastern North Pacific
Interactive influences of iron light limitation phytoplankton subsurface chlorophyll maxima eastern North Pacific
2014/4/18
The roles of iron and light as limiting and colimiting factors for phytoplankton growth in subsurface chlorophyll maxima (SCMs) were investigated in mesotrophic to oligotrophic waters of the Southern ...
Inorganic carbon uptake by Southern Ocean phytoplankton
Inorganic carbon uptake Southern Ocean phytoplankton
2014/4/18
We report the results of laboratory and field studies examining inorganiccarbon (Ci) utilization by Southern Ocean phytoplankton. Both in monospecific laboratory cultures of diatoms and Phaeocystis an...