Results 21 to 30 of about 2,596,999 (276)

Freezing and chemical preservatives alter the stable isotope values of carbon and nitrogen of the Asiatic clam (Corbicula fluminea) [PDF]

, 2010
We tested the impacts of most common sample preservation methods used for aquatic sample materials on the stable isotope ratios of carbon and nitrogen in clams, a typical baseline indicator organism for many aquatic food web studies utilising stable ...
Dorothée Kopp, Aurélia Martino, Santoul, Frédéric, Céréghino, Régis, Frédéric Santoul, Kopp, Dorothée, Régis Céréghino, Syväranta, Jari, Jari Syväranta, Martino, Aurelia   +9 more
core   +1 more source

Effects of Upwelling Intensity on Nitrogen and Carbon Fluxes through the Planktonic Food Web off A Coruña (Galicia, NW Spain) assessed with Stable Isotopes

Diversity, 2020
The input of new nutrients by upwelling in shelf waters, and the associated carbon and nitrogen fluxes, can be traced by their stable isotope signatures in organic matter.
Antonio Bode, Angel F. Lamas, Carmen Mompeán   +2 more
doaj   +1 more source

The Preparation of Carbon and Nitrogen Stable Isotopes Reference Materials Using Sediments from the Bohai and East China Seas

Yankuang ceshi, 2017
The stable isotope of carbon and nitrogen (δ13C and δ15N) in marine sediments have received much attention as they can be used to trace the sources of organic matter and are helpful in understanding the carbon cycle, climate change and the transformation
QIN De-di, HE Xing-liang, ZHANG Yuan-yuan, LI Feng, CHEN Yu-feng, ZHANG Pei-yu   +5 more
doaj   +1 more source

Comparative Study of Nitrogen Cycling Between a Bay With Riverine Input and a Bay Without Riverine Input, Inferred From Stable Isotopes

Frontiers in Marine Science, 2022
The eutrophication degree in the coastal bay has been increasing significantly for the past years, due to the increasing nutrient discharge. However, the factors controlling sources and nitrogen (N) cycling in the different types of bays are still poorly
Chunqing Chen, Qibin Lao, Qibin Lao, Youli Shen, Guangzhe Jin, Guangzhe Jin, Guangzhe Jin, Fajin Chen, Fajin Chen, Fajin Chen, Qizhong Su, Xuetie Lei, Xin Zhou, Xuan Lu, Qingmei Zhu, Qingmei Zhu, Qingmei Zhu, Guoqiang Liu, Guoqiang Liu   +18 more
doaj   +1 more source

Effect of dietary stable isotopic ratios of carbon and nitrogen on the extent of their incorporation into tissues of rats

Journal of Animal Science and Biotechnology, 2012
This study was conducted to investigate the effect of different dietary ratios of 13 C to 12 C or 15 N to 14 N on their relative incorporation into tissues.
Lv Wentao, Ju Tingting, Dong Bing, Yu Boyang, Yin Jingdong   +4 more
doaj   +1 more source

Amino Acid δ15N Can Detect Diet Effects on Pollution Risks for Yellow-Legged Gulls Overlooked by Trophic Position

Frontiers in Marine Science, 2021
The use of top-consumers as bioindicators of the health of food webs is hampered by uncertainties in their effective use of resources. In this study, the abundance of stable nitrogen isotopes in amino acids from homogenised eggs of the Yellow-legged Gull
Antonio Bode, Victoria Besada, Begoña Pérez-Fernández, Lucía Viñas   +3 more
doaj   +1 more source

Seasonal changes in the δ13C and δ15N signatures of the Lago Maggiore pelagic food web

Journal of Limnology, 2011
Seasonal variation in the relative contributions of littoral and pelagic food sources to the diets of open-water zooplankton and subsequent changes in their trophic positions were investigated with carbon and nitrogen Stable Isotope Analysis (SIA).
Marina MANCA, Anna VISCONTI
doaj   +1 more source

The fate of nitrogen in the Zarin-Gol River receiving trout farm effluent

Scientific Reports, 2023
This study investigated the Zarrin-Gol River ecosystem in Iran to trace organic matter in the food web and evaluate the impact of aquaculture farm effluent using stable isotopes of nitrogen (δ15N) and carbon (δ13C).
Altin Ghojoghi, Rasoul Ghorbani, Rahman Patimar, Abdolrassoul Salmanmahiny, Rahmat Naddafi, Abdolazim Fazel, Timothy D. Jardine   +6 more
doaj   +1 more source

Stable and radiogenic isotopes as tracers for soil degradation [PDF]

, 2008
Soil erosion seriously threatens mountain slopes. Direct measurement of soil erosion in the field is difficult and needs long term recording. However, stable and radiogenic isotopes are potential tracers for soil erosion estimation and would enable a ...
Schaub, Monika
core   +1 more source

The niche of shrimp stocks (Xiphopenaeus kroyeri Heller, 1862) from southeastern Brazil: a stable isotope approach

Journal of Threatened Taxa, 2020
The penaeid shrimp Xiphopenaeus kroyeri is the second most important species of crustacean in Brazilian fisheries. Stable isotopes of carbon and nitrogen are chemical proxies to provide quantitative information about the consumer isotopic niche, which is
Keltony de Aquino Ferreira, Leandro Rabello Monteiro, Ana Paula Madeira Di Beneditto   +2 more
doaj   +1 more source