Top PDF Stable isotopes (carbon and nitrogen)

Naturally occurring stable isotopes as direct measures of larval feeding efficiency, nutrient incorporation and turnover

... heavier stable isotopes of carbon and nitrogen at each trophic ...natural stable isotopes in larval nutrition research, compared to enriched stable isotope and radio-labeled tracers, ...

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Application of natural stable isotopes in aquaculture nutrition

... radioactive isotopes is subject to a number of safety regulations (Schlechtriem et ...contrast, stable isotopes are non-hazardous, non-invasive and the changing ratio of stable isotopes ...

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Nutritional role of the natural productivity and formulated feed in semi intensive shrimp farming as indicated by natural stable isotopes

... more stable isotopes (for example, 12 C and 13 C for carbon, 14 N and 15 N for ...different isotopes of the same element is the number of neutrons, which do not affect the reactive properties of such ...

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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

... using stable isotopes is difficult due to rapid ontogeny through larval stages and trophic levels, which frequently prevent the organisms form reaching isotopic ...of stable isotopes provides ...

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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

... of stable isotopes to estimate the physiological utilization of nutrients provided by alternative ...carbon stable isotopes ( 13 C/ 12 C, ...

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Petrography, geochemistry and stable isotopes of carbonate rocks, Lower Cretaceous Alisitos Formation, Los Torotes section, Baja California, Mexico

... 5b, 5d, 5e). Opaque grains partly replace bioclasts and matrix and line wavy stylolites (Figures 5b, 5d, 5e). The opaque material is a dull grayish-yellow color suggestive of leucoxene, and higher in the section it has ...

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← Volver a los detalles del artículo The diet of Pomacea canaliculata (Gastropoda: Ampullariidae) in its native habitat based on gut content and stable isotopes analysis

... of stable isotopes constitutes a key tool to discern trophic ecological ...The stable-N isotopic signature (δ 15 N) in particular, is used to determine the ...

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Trophic ecology of the Endangered Darwin's frog inferred by stable isotopes

... of stable isotopes provides a robust methodology to determine ingested and assimilated food, as well as information on the trophic position of the species under study (Davis et ...

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Stable isotopes of hydrogen and oxygen in plant ecophysiological studies

... Abstract: Stable isotope studies of elements in biological organisms have become a useful tool to assess the exchange of mole- cules in the ...on stable isotopes of hydrogen and oxygen have become a ...

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TítuloCave bear's diet: a new hypothesis based on stable isotopes

... The cave bear presents a specific tooth morphology with wide grinding surfaces, and muscle insertions in the skull and the jaw which show a great biting power, which is the reason why it is thought to follow a basically ...

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Establishment and formation of fog dependent Tillandsia landbeckii dunes in the Atacama Desert: Evidence from radiocarbon and stable isotopes

... ical evidence to propose an explanation of how T. landbeckii dunes form. Contrary to wind‐blown dunes, the systems studied here actually grow against the main wind direction, which would explain their unusual layered ...

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Nutritional contribution of torula yeast and fish meal to the growth of shrimp Litopenaeus vannamei as indicated by natural nitrogen stable isotopes

... 5 (Phillips, 2012). In aquaculture nutrition, the isotopic values of carbon and nitrogen have been used as natural biomarkers to estimate dietary contributions in organisms fed on experimental dietary formulations having ...

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Stable isotopes in subfossil woods - first insights into an ultra-high resolution paleoclimatic record of an Andean forest during the Late Pleistocene

... In this study, δ 13 C analysis of a subfossil wood sample with visible tree rings, identied as a member of the Goupiaceae family and found in a quaternary organic rich sedimentary layer,[r] ...

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Trophic specialization and morphological divergence between two sympatric species in Lake Catemaco, Mexico

... between stable isotopes and ecomophology was observed, in contrast to the latter and diet ...proach. Stable isotopes analysis provides a time- integrated indicator of energy resources (Vander ...

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TROPHIC ECOLOGY OF LIMPETS AMONG ROCKY INTERTIDAL IN BAHIA LAREDO, STRAIT OF MAGELLAN (CHILE)

... Limpets (N. deaurata and N. magellanica) were randomly collected from an intertidal boulder- cobble field at Bahía Laredo located in the eastern part of the Strait of Magellan (52°56.5´S; 70°50´W). N. deaurata is ...

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TítuloComplex patterns of habitat use by juvenile spider crabs "Maja brachydactila" revealed by stable isotope analyses

... * Email: jfreire@udc.es Keywords: coastal food webs, feeding, habitat use, juveniles, Maja brachydactila, stable isotopes ABSTRACT Patterns of habitat use by spider crab juveniles, Maja [r] ...

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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

... authors did not provide the stratigraphic context of their specimens. Carbon and oxygen stable isotopes in molars of D. mexicanus and N. eurystyle from the Tecolotlán basin have not previously been ...

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Stable isotopes (carbon and nitrogen)