搜索结果: 1-10 共查到“海洋地球物理学 Composition”相关记录10条 . 查询时间(0.156 秒)
Natural isotopic composition of carbon (d13 C) correlates with colony size in the planktonic cyanobacterium Gloeotrichia echinulata
Natural isotopic colony size
2014/4/18
To assess variability in carbon isotope signatures (d13
C) between and within populations under natural
conditions, with a particular emphasis on colony size, we repeatedly collected planktonic colo...
Temporal dynamics of seston: A recurring nighttime peak and seasonal shifts in composition in a stream ecosystem
A recurring nighttime peak seasonal shifts
2014/4/17
We measured the baseflow concentration and composition of seston and suspended particulate organic carbon
(POC) over a 1-yr period in White Clay Creek, a third-order stream in the southeastern Pennsy...
Zinc isotope composition of settling particles as a proxy for biogeochemical processes in lakes: Insights from the eutrophic Lake Greifen, Switzerland
Zinc isotope composition a proxy for biogeochemical processes
2014/4/17
The isotope composition of zinc (Zn) was determined in settling particles collected monthly over a year in the
hypolimnion of the eutrophic Lake Greifen (Switzerland) in order to explore the potentia...
The trace-metal composition of size-fractionated plankton in the South China Sea: Biotic versus abiotic sources
size-fractionated plankton South China Sea
2014/4/22
We report the elemental composition (P, Si, Al, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) in the size-fractionated
plankton and suspended particulate matter (SPM) in the surface waters of the South China Se...
Potamoplankton size structure and taxonomic composition: Influence of river size and nutrient concentrations
Potamoplankton size taxonomic composition
2014/4/30
We measured the size structure and taxonomic composition of phytoplankton in temperate rivers during base
flows of summer to investigate the influence of river size, ambient nutrient conc...
Influence of iron on algal community composition and physiological status in the Peru upwelling system
algal community composition physiological status
2014/5/13
Phytoplankton community structure in the eastern Equatorial Pacific (EEP) and the Peru upwelling system was
determined using ChemTax analysis of pigment data. Photosynthetic efficiencies ...
Reproduction as one of the main causes of temporal variability in the elemental composition of zooplankton
Reproduction temporal variability
2014/5/13
With the aim to determine the contribution of development and reproduction to the variability in the elemental
composition of zooplankton, we measured the carbon (C), hydrogen (H), nitrogen (N), and ...
Coupling of near-bottom seston and surface sediment composition: Changes with nutrient enrichment and implications for estuarine food supply and biogeochemical processing
near-bottom seston surface sediment composition Changes with nutrient enrichment estuarine food supply biogeochemical processing
2014/5/8
We compared near-bottom seston and surface sediment composition in Cape Cod estuaries receiving different N loads to determine whether eutrophic-driven changes in seston and sediment composition occur...
Production and neutral aldose composition of dissolved carbohydrates excreted by natural marine phytoplankton populations
Production neutral aldose composition
2014/5/30
Natural populations of diatoms were incubated for 4–12 h with H13
CO3
21
. The production of particulate and
dissolved fractions of organic carbon and neutral aldoses (NAld) was followed by gas ch...
Composition and cycling of marine organic phosphorus
marine organic phosphorus Composition cycling
2014/5/30
Using tangential-flow ultrafiltration and solid-state
31
P nuclear magnetic resonance (NMR) spectroscopy, the
dominant compound classes of marine high–molecular weight (1–100-nm size fr...