sciences, and also suggests new direction based on future prospects in stableisotope ecology and environmental ... This article introduces the progress history of stableisotope application in aquatic ecology and environmental ... In addition, nitrogen isotoperatio has been applied for nitrogen cycle and source identification as
These results suggest that the analysis of stable isotope ratios is a simple but useful tool for the ... Also the δ13C and δ15N isotoperatio of phytoplankton (Diatom and Cyanobacteria) in KK (Kyeongan stream ... with 8 stations, with an apparent increase of nitrogen isotope values.
approach for overcoming some restrictions in application of stableisotope analysis of bulk tissue (SIA ... Current study suggests the applicability of nitrogen isotoperatio of amino acid to understand coastal ... indicus and Lophius litulon) collected from the Geum River estuary using nitrogen isotoperatio of amino
isotoperatio, and distinguish DOM source using stableisotope value (δ13C-DOC) and spectroscopic indices ... The current study established the TOC/TN stableisotope analyses system for the first time in Korea, ... As a result of controlling the instrumental conditions to enable TOC stableisotope analysis even in
Many studies have used stable isotope ratios to identify anthropogenic nitrogen in aquatic systems as ... stableisotopic techniques to trace the anthropogenic nitrogen source in freshwater ecosystem. ... Also, we investigated isotope values of potential nitrogen source (soil, synthetic fertilizer and organic-animal
origin of POC using stable carbon isotopes ratio before and after summer rainfalls in the Tamjin River ... were established for the study. ... Along the small watershed, a total of 13 sites including headwaters, dam reservoir, river and estuary
These results suggest that the analysis of stable isotope ratios is a simple but useful tool for the ... Organic carbon and total nitrogen stable isotope ratios of suspended materials were determined at 3 stations ... Carbon isotoperatios were significantly different between stations in November and August, and it was
isotoperatios of carbon (δ13C) and nitrogen (δ15N) of its gut, gill, and muscle as well as potential ... In order to understand food sources-metabolism for the pacific oyster (Crassostrea gigas), the stable ... food sources (particulate o 한국환경생물학회 환경생물 Yang Jin-Yong, Shin Kyung-Hoon
Some migratory species showed reverse stable isotope ratio. ... Even though they collected in freshwater, they showed stable isotope ratio of seawater. ... Fish fauna, difference of stable isotope ratio between freshwater and seawater, and trophic guilds of
stable isotope ratios, suggesting benthic microalgae should be a main diet to the intertidal ecosystem ... diet source for benthos, we analyzed the carbon and nitrogen stableisotopes of diverse benthos (bivalves ... matter, benthic microalgae, seagrass, and macroalgaes) in the intertidal mudflat surrounding Yeongheung
Many studies have used nitrogen stable isotope ratios to identify anthropogenic nitrogen in aquatic systems ... The current study clarifies the reliability of Kjeldahl analytical method and the usefulness of stable ... isotopic techniques to trace the contamination source of dissolved nitrogen such as nitrate and ammonia
Organic carbon and nitrogen stable isotope ratios of particulate organic matter(POM) were deter-mined ... These results suggest that theanalysis of stable isotope ratios is a simple but useful tool for the identification ... POC, PN and Chl-aconcentration showed a similar seasonal pattern in Kyeongan stream, with an apparent
To investigate foodweb of aquatic ecosystem in the Tamjin River, carbon and nitrogen stableisotopes ... in this study. ... ratios of aquatic organisms, as well as environmental indicators based on the water, were determined
The hydrogen-oxygen stable isotope ratio of groundwaters originates in the meteoric water, and groundwaters ... intrusion phenomena with hydrogeochemical and hydrogen-oxygen stableisotope of coastal aquifer in the ... of GG-1, 5 and 14 display high oxygen isotope value due to surface water trespass and sea water intrusion
in the ratios of small whole numbers. ... whole number ratio of the atoms in Na2S2O4 is NaSO2. ... When writing formulas of oxoacids, you must know the names and formulas of polyatomic anions (see Table
We also observed Kranz anatomy and analyzed carbon stableisotope to classify photosynthesis types. ... The ratios of C3 and C4 species number to total number of species tended to maintain constant regardless ... species than those of other types in the surveyed sites.
mic mass) Isotopes Different forms of the same element Have the same number of protons, but different ... Carbon Nitrogen Sulfur Periodic table Shows the electron distribution for all the elements Second shell ... in a fixed ratio Have characteristics different from those of their elements Sodium Chloride Sodium
이때, 늘어난 방향에 대한 수축된 비율을 Poisson's ratio라고 한다. ( ) Table.1 Poisson's ratio 계산결과 힘(ton) 황동 알루미늄 강철 1 0.136986767 ... 그러므로 실험에 사용될 금속 블록을 isotopic material로 생각하면 다음 관계가 성립한다. ... Poisson's ratio 금속블록에 외력을 가하면 길이 방향은 늘어나지만, 동시에 가로 방향에선 수축이 일어난다.
based on stableisotope analysis from pre-monsoon(July) to post-monsoon(September) 2007.According to ... Carbon and nitrogen stableisotoperatios were markedly different among secondary consumers. ... onautochthonous food source.
called isotopes. ... decay (b) Positron Emission When the number of protons in a nucleus is too large for the nucleus to be stable ... , whole number ratios WILHELM C ROENTGEN He was born in germany to the a merchant and cloth maker.