Carbon and Nitrogen Stable Isotopes
Nutritional contribution of torula yeast and fish meal to the growth of shrimp Litopenaeus vannamei as indicated by natural nitrogen stable isotopes
... of carbon and nitrogen have been used as natural biomarkers to estimate dietary contributions in organisms fed on experimental dietary formulations having ingredients with contrasting isotopic ...
58
Exploring the contribution of dietary protein from poultry by product meal and fish meal to the growth of catfish Ictalurus punctatus by means of nitrogen stable isotopes
... Canada, and North-Eastern Mexico. This species has a wide demand and offers great potential for continued growth, the latter being reflected in an important increase in global production in the last 30 ...
8
Application of natural stable isotopes in aquaculture nutrition
... more stable isotopes, although one isotope is usually present in far greater abundance (Ehleringer and Rundel, ...Hence, isotopes occur naturally in organic tissues, but they may also be added ...
180
TítuloCave bear's diet: a new hypothesis based on stable isotopes
... We have assembled published isotopic carbon and nitrogen data from bone colla- gen of fossil European Pleistocene herbi- vores. Only adult individuals have been taken into account. We have no used ...
9
Trophic ecology of the Endangered Darwin's frog inferred by stable isotopes
... Endangered and could be the only extant representative of this ...availability and stable isotope analysis, we determined for the first time trophic ecological parameters for this ...predator ...
10
Naturally occurring stable isotopes as direct measures of larval feeding efficiency, nutrient incorporation and turnover
... h and, as with most tracer methodologies, involve delivery of specific nutrient source under controlled or constrained conditions, providing a relatively instantaneous measure of physiological performance ...
40
Establishment and formation of fog dependent Tillandsia landbeckii dunes in the Atacama Desert: Evidence from radiocarbon and stable isotopes
... establishment and buildup (Table ...preserved and many have easily recognizable leaves and ...dieback and colonization could explain the unusual stratigraphy and increased height with ...
13
Biochar interaction with N dynamics involved in the formation and emission of nitrous oxide in agriculture = Interacción del biochar con las dinámicas de N involucradas en la formación y emisión de óxido nitroso en agricultura
... highest and most persistent increase in TOC in soil, which validates our second ...lower and not statistically ...Boer and Kowalchuk, 2001; Jeffery et ...plots and positively correlated with ...
261
Diet and habitat of unique individuals of Dinohippus mexicanus and Neohipparion eurystyle (Equidae) from the late Hemphillian (Hh3) of Guanajuato and Jalisco, central Mexico: stable isotope studies
... Taxonomic and biostatigraphic research in the Mexican Late Tertiary sedimentary basins has shown a highly diversified mammal ...known and important local faunas are those from Rancho El Ocote in the San ...
7
Effect of operational parameters on methanol biofiltration coupled with Endochitinase 42 production
... was stable along the three stages mentioned ...28 and 44% lower than those obtained from batch experiments (Perez-Martinez et ...nutrients and other conditions are uniform due to mechanical ...
106
Paper mill effluent decolorization by fifty Streptomyces strains
... 280 and 465 nm obtained with both untreated ...effl.uents and effl.uents decolorized by strains UAH 30 and UAH 51 are shown in ...3 and 4, ...high- and medium-molecular weight ...
7
Evaluation of the performance and sustainability of algal bacterial processes during wastewater treatment using a mass balance approach
... (González-Fernández and Ballesteros ...N and P starvation increased from 1.2 to 2.7 within the first 3 days and up to ...initial and final carbohydrate content of 48±1 and 72±1 %, ...
158
Thermal tolerance of crustacean larvae(zoea I) in two different populations of the kelp crab Taliepus dentatus (Milne Edwards)
... cellular and molecular levels (Mark et ...species and are characterized by falling oxygen levels in the body fluids (hypoxemia) and the resulting decrease in the animal’s aerobic ...circulatory ...
6
Artemia replacement in co feeding regimes for mysis and postlarval stages of Litopenaeus vannamei: Nutritional contribution of inert diets to tissue growth as indicated by natural carbon stable isotopes
... ratio and amino acid profile (Gaye-Siessegger et ...contrasting carbon discrimination factors (∆ 13 C = ...(+1.6‰) and various inert diets (-1.3 to +6.8‰). ∆ 13 C values between shrimp and ...
36
Quantification of N20 and carbon/nitrogen removal in an anoxic aerobic algal-bacterial photobioreactor
... The carbon and nitrogen removal potential of a novel ...external and internal recirculations was evaluated under different synthetic wastewater feeding flow rates (900 – 1800 mL day -1 ) ...
24
Eliminació biològica de nitrogen via nitrit d’un corrent amb alta càrrega d’amoni
... de nitrogen amoniacal al voltant del 40% (EEA ...de nitrogen en els rius europeus s’han mantingut elevats, resultat de la incidència de l’agricultura i de l’encara insuficient eliminació de nitrogen ...
122
Carbon nanostructured adsorbents for the removal of toxic metals from aqueous solution
... for carbon nanotubes would include devices for water decontamination systems, such as membranes and filters, since their small and uniform pore sizes constitute an advantage over activated and ...
191
Forest management options and carbon stock and soil rehabilitation in Chilimo Dry Afro Montane forest, Ethiopia
... adequate and simple tools to introduce model forecasting where data are scarce and appropriate decision making processes to enhance fu- ture stand dynamics is ...maximum and minimum density of stems, ...
293
Stable Carbon Isotopes Applied to Vegetation Reconstruction in the Teotihuacan Valley, Mexico
... In this initial study, emphasis was placed on the comparison of horizons from three sites that appear to be culturally affiliated to the prehispanic and Colonial periods in the Teotihuacan Valley, in order to look ...
9
Libros en el Mercado / Books in the Market
... Many journals, ours ineluded, publish book reviews. Nevertheless, reviews cannot inelude a significant sample of the eopious production offered by the market. Thus we have created this new section, which will appear in ...
7