Quantifying nitrate dynamics in a mesotrophic lake using triple oxygen isotopes as tracers
نویسندگان
چکیده
منابع مشابه
Modeling the interplay between deepwater oxygen dynamics and sediment diagenesis in a hard-water mesotrophic lake
Article history: Received 23 July 2015 Received in revised form 12 November 2015 Accepted 15 November 2015 Available online 21 November 2015
متن کاملIsotopes as Tracers of the Hawaiian Coffee-Producing Regions
Green coffee bean isotopes have been used to trace the effects of different climatic and geological characteristics associated with the Hawaii islands. Isotope ratio mass spectrometry (IRMS) and inductively coupled plasma mass spectrometry ((MC)-ICP-SFMS and ICP-QMS) were applied to determine the isotopic composition of carbon (δ13C), nitrogen (δ15N), sulfur (δ34S), and oxygen (δ18O), the isoto...
متن کاملLinking mercury, carbon, and nitrogen stable isotopes in Tibetan biota: Implications for using mercury stable isotopes as source tracers
Tibetan Plateau is located at a mountain region isolated from direct anthropogenic sources. Mercury concentrations and stable isotopes of carbon, nitrogen, and mercury were analyzed in sediment and biota for Nam Co and Yamdrok Lake. Biotic mercury concentrations and high food web magnification factors suggested that Tibetan Plateau is no longer a pristine site. The primary source of methylmercu...
متن کاملUsing oxygen isotopes of phosphate to trace phosphorus sources and cycling in Lake Erie.
Water samples collected during three sampling trips to Lake Erie displayed oxygen isotopic values of dissolved phosphate (delta18Op) that were largely out of equilibrium with ambient conditions, indicating that source signatures may be discerned. delta18Op, values in the Lake ranged from +10% per hundred to +17% per hundred, whereas the equilibrium value was expected to be around +14% per hundr...
متن کاملQuantifying marine snow as a food choice for zooplankton using stable silicon isotope tracers
Aggregates of biogenic origin >0.5 mm, known as marine snow, represent a concentrated potential source of food for zooplankton. Little is known, however, about whether aggregates are commonly grazed by zooplankton in the field. While previous laboratory studies have shown that the euphausiid Euphausia pacifica, and the copepod, Calanus pacificus, common crustacean zooplankters, consume marine s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 2018
ISSN: 0024-3590
DOI: 10.1002/lno.10775