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Seamount Mineral Deposits:A Source of Rare Metals for High-Technology Industries
Seamount Mineral Deposits Rare Metals High-Technology Industries
2015/7/7
The near exponential growth in Earth's population and the global economy puts increasing constraints on our planet's finite supply of natural metal resources, and, consequently, there is an increasing...
Effect of Ocean Acidification on the Speciation of Metals in Seawater
Air carbon dioxide water pH value water calcium animals biological process
2015/7/6
Increasing atmospheric CO2 over the next 200 years will cause the pH of ocean waters to decrease further. Many recent studies have examined the effect of decreasing pH on calcifying organisms in ocean...
Simultaneous determination of in situ vertical transitions of color, pore-water metals, and visualization of infaunal activity in marine sediments
Simultaneous situ vertical transitions of color
2014/4/17
The vertical color transition from brown to gray-green in marine sediments is linked to the Fe redox boundary
and is commonly used as a proxy for biogeochemical state. We combine time-lapse sediment ...
Differential effects of phosphorus limitation on cellular metals in Chlorella and Microcystis
phosphorus limitation Chlorella Microcystis
2014/4/21
We investigated the effect of phosphate bioavailability on cellular metal quotas in two species of freshwater
phytoplankton (the eukaryote Chlorella sp. UTCC522 and the cyanobacterium Microcystis sp....
Contrasting biogeochemistry of six trace metals during the rise and decay of a spring phytoplankton bloom in San Francisco Bay
biogeochemistry six trace metals during the rise decay of a spring phytoplankton bloom San Francisco Bay
2014/4/22
The spring 2003 phytoplankton bloom in South San Francisco Bay (South Bay) affected the cycling of Mn, Co, Zn, Ni, and Pb, but not Cu. We followed this diatom bloom for 2 months, capturing a peak in c...
Significance of subcellular metal distribution in prey in influencing the trophic transfer of metals in a marine fish
subcellular metal distribution in prey trophic transfer metals in a marine fish
2014/5/5
We investigated how the subcellular metal distribution in prey affects metal dietary assimilation in a marine fish, the grunt Terapon jarbua. The assimilation efficiency (AE) of metals (Cd, Se, and Zn...
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...
Interactions between algal–bacterial populations and trace metals in fjord surface waters during a nutrient-stimulated summer bloom
algal–bacterial populations trace metals
2014/5/13
We examined how variations in algal–bacterial community structure relate to Cu, Zn, and Mn speciation during
a diatom-rich bloom that was induced by daily additions of inorganic macronutrients to fjo...
Hydrophobicity and reactivity of trace metals in the low-salinity zone of a turbid estuary
Hydrophobicity reactivity trace metals low-salinity zone a turbid estuary
2014/5/9
We chemically fractionated water samples from the low-salinity zone of a turbid estuary (Tamar, UK) using C18 columns to examine the controls on the complexation, hydrophobicity, and reactivity of dis...
The assimilation of detritus-bound metals by the marine copepod Acartia spinicauda
The assimilation detritus-bound metals marine copepod Acartia spinicauda
2014/5/26
The bioavailability of Cd, Se, and Zn associated with detritus of different biological origins to the marine copepod Acartia spinicauda was examined under laboratory conditions using the radiotracer a...
Mass balance of heavy metals in New Haven Harbor, Connecticut: Predominance of nonpoint sources
heavy metals New Haven Harbor
2014/5/30
A mass balance was constructed quantifying all known sources and sinks for the metals Ag, Cd, Cu, and Pb in
New Haven Harbor, Connecticut, USA. Sources included direct atmospheric deposition, rivers,...
Production of colloidal organic carbon and trace metals by phytoplankton decomposition
colloidal organic carbon phytoplankton decomposition
2014/5/30
Colloids are important intermediates and can considerably influence the biogeochemical cycling of organic carbon
and trace metals in aquatic systems. Previous studies have determined the releas...
Role of colloids and fine particles in the transport of metals in rivers draining carbonate and silicate terrains
Role of colloids fi ne particles
2014/5/30
We have used cross flow filtration (CFF) to determine the pools of fine particulate (0.1–0.45 mm), colloidal (1,000
Dalton to 0.1 mm), and dissolved (,1,000 Dalton) metals in seven ...