搜索结果: 1-12 共查到“海洋科学 cadmium”相关记录12条 . 查询时间(0.067 秒)
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, ...
The interaction between inorganic iron and cadmium uptake in the marine diatom Thalassiosira oceanica
inorganic iron cadmium uptake
2014/4/21
We examined substrate-saturated Fe(II) vs. Fe(III) uptake rates of Thalassiosira oceanica preconditioned to
varying degrees of Fe limitation. Inorganic Fe(III) uptake rates by Fe-sufficient T. oceani...
Phylogenetic diversity in cadmium : phosphorus ratio regulation by marine phytoplankton
Phylogenetic diversity cadmium phosphorus ratio regulation marine phytoplankton
2014/4/22
We examined the effect of irradiance and growth rate on cadmium : phosphorus ratio in five species of phytoplankton representing four different phylogenetic groups to determine the relative importance...
Zinc, cadmium, and cobalt interreplacement and relative use efficiencies in the coccolithophore Emiliania huxleyi
Zinc cadmium cobalt interreplacement
2014/4/22
We investigate the interreplacement of Zn, Cd, and Co in the cosmopolitan coccolithophore Emiliania huxleyi
by examining its growth rate, cellular metal quotas, and cellular metal uptake rates under ...
On the nonlinear relationship between dissolved cadmium and phosphate in the modern global ocean: Could chronic iron limitation of phytoplankton growth cause the kink?
On the nonlinear relationship dissolved cadmium and phosphate the modern global ocean chronic iron limitation phytoplankton growth
2014/5/4
I report two vertical profiles of dissolved cadmium (Cd) and phosphate (PO4) from the Bering Sea: one from a high-nutrient, low-chlorophyll (HNLC) area, in which phytoplankton growth is limited by iro...
Trophic transfer of metals along freshwater food webs: Evidence of cadmium biomagnification in nature
Trophic transfer metals along freshwater food webs Evidence of cadmium biomagnification in nature
2014/5/13
We conducted a study with cadmium (Cd) and copper (Cu) in the delta of San Francisco Bay, using nitrogen and carbon stable isotopes to identify trophic position and food web structure. Cadmium is prog...
Effects of dissolved carbon dioxide, zinc, and manganese on the cadmium to phosphorus ratio in natural phytoplankton assemblages
Effects of dissolved carbon dioxide, zinc, and manganese the cadmium to phosphorus ratio natural phytoplankton assemblages
2014/5/9
We report the results of a field study, in productive waters off California, of the factors that control the particulate cadmium (Cd) : phosphorus (P) composition of natural assemblages of marine phyt...
Effects of copper, cadmium, and zinc on the production and exudation of thiols by Emiliania huxleyi
copper cadmium zinc production exudation thiols Emiliania huxleyi
2014/5/9
Cultures of the ubiquitous coccolithophore Emiliania huxleyi grown at field-relevant fixed free ion concentrations of Cu, Cd, and Zn exude a broad array of thiols, some of which increase with increasi...
Speciation and partitioning of cadmium and zinc in two contrasting estuaries: The role of hydrophobic organic matter
Speciation partitioning hydrophobic organic
2014/5/14
The hydrophobicity and particle–water interactions of cadmium (Cd) and zinc (Zn) in an ‘‘organic-poor’’ estuary
(Plym, United Kingdom) and an ‘‘organic-rich’’ estuary (Beaulieu, United Kingdom) have ...
Effect of iron limitation on the cadmium to phosphorus ratio of natural phytoplankton assemblages from the Southern Ocean
iron limitation cadmium to phosphorus ratio natural phytoplankton assemblages Southern Ocean
2014/5/20
There is considerable interest in the biogeochemical cycling of cadmium (Cd) and phosphate (PO4) in surface waters, driven in part by the ongoing development of a paleonutrient proxy that utilizes Cd ...
Nearshore circulation during upwelling inferred from the distribution of dissolved cadmium off the Oregon coast
Nearshore circulation upwelling infrared dissolved cadmium the Oregon coast
2014/5/26
The effectiveness of dissolved cadmium (Cd) as a tracer of coastal upwelling is demonstrated by comparing its water column distribution to that of traditional upwelling indicators, in particular phosp...
Bioavailability of particle-associated silver, cadmium, and zinc to the estuarine amphipod, Leptocheirus plumulosus, through dietary ingestion
Bioavailability particle-associated silver cadmium zinc to the estuarine amphipod Leptocheirus plumulosus dietary ingestion
2014/6/17
We conducted experiments to determine effects of particle type on assimilatory metal bioavailability to Leptocheirus plumulosus, an infaunal, estuarine amphipod that is commonly used in sediment toxic...