Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 34
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
A "high He-4/He-3" mantle material detected under the East Pacific Rise (15 degrees 4 ' N) ArchiMer
Mougel, Berengere; Moreira, Manuel; Agranier, Arnaud.
We investigate in details helium isotope data reported in Mougel et al. (2014) for 14 basaltic samples collected on the East Pacific Rise by submersible (15 degrees 4N) where the ridge interacts with the Mathematician seamounts. Samples locations are separated by only few hundred meters across a 15km along-axis profile. The data reveal a strong geochemical variability that has never been observed at such high spatial resolution for helium isotope compositions. Moreover, they reveal an unusually high He-4/He-3 mantle component also characterized by unradiogenic lead, atypical in oceanic basalts. He-Pb systematics suggests a mixture between a nonradiogenic lead and radiogenic helium pyroxenitic component, recycled from the deep continental lithosphere and...
Tipo: Text Palavras-chave: Helium; Isotopes; Mantle geochemistry; MORB; Hot spot; EPR.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00639/75140/75500.pdf
Imagem não selecionada

Imprime registro no formato completo
Behavior of Li and its isotopes during serpentinization of oceanic peridotites ArchiMer
Decitre, S; Deloule, E; Reisberg, L; James, R; Agrinier, P; Mevel, C.
[1] Analyses of Li and Li isotopes in serpentinized peridotites have been performed using Thermo-Ionisation Mass Spectrometry (TIMS) and Secondary Ion Mass Spectrometry (SIMS) techniques on samples collected from the southwest Indian Ridge (SWIR). In the bulk samples, Li concentrations range from 0.6 to 8.2 ppm, while whole rock delta(6)Li values range from -2.9 to -14parts per thousand. In situ analyses display a greater range in both Li concentration (0.1-19.5 ppm) and Li isotopic composition ( -27 to +19parts per thousand), with the serpentinized portions having higher Li concentrations than the associated relict phases. These variations may reflect changes in Li partitioning and isotopic fractionation between serpentine and fluid with temperature and...
Tipo: Text Palavras-chave: Lithium; Isotopes; Geochemical cycle; Oceanic crust; Serpentinization.
Ano: 2002 URL: https://archimer.ifremer.fr/doc/00223/33403/31860.pdf
Imagem não selecionada

Imprime registro no formato completo
Calibration of the carbon isotope composition (C-13) of benthic foraminifera ArchiMer
Schmittner, Andreas; Bostock, Helen C.; Cartapanis, Olivier; Curry, William B.; Filipsson, Helena L.; Galbraith, Eric D.; Gottschalk, Julia; Carlos Herguera, Juan; Hoogakker, Babette; Jaccard, Samuel L.; Lisiecki, Lorraine E.; Lund, David C.; Martinez-mendez, Gema; Lynch-stieglitz, Jean; Mackensen, Andreas; Michel, Elisabeth; Mix, Alan C.; Oppo, Delia W.; Peterson, Carlye D.; Repschlaeger, Janne; Sikes, Elisabeth L.; Spero, Howard J.; Waelbroeck, Claire.
The carbon isotope composition (C-13) of seawater provides valuable insight on ocean circulation, air-sea exchange, the biological pump, and the global carbon cycle and is reflected by the C-13 of foraminifera tests. Here more than 1700 C-13 observations of the benthic foraminifera genus Cibicides from late Holocene sediments (C-13(Cibnat)) are compiled and compared with newly updated estimates of the natural (preindustrial) water column C-13 of dissolved inorganic carbon (C-13(DICnat)) as part of the international Ocean Circulation and Carbon Cycling (OC3) project. Using selection criteria based on the spatial distance between samples, we find high correlation between C-13(Cibnat) and C-13(DICnat), confirming earlier work. Regression analyses indicate...
Tipo: Text Palavras-chave: Carbon; Isotopes; Benthic; Foraminifera; Calibration.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00661/77326/78788.pdf
Imagem não selecionada

Imprime registro no formato completo
CARBON ISOTOPE DISCRIMINATION IN MANGO LEAVES UNDER SALT STRESS Rev. Bras. Frutic.
VECCELLI,JULIANA CRISTINA; SIQUEIRA,DALMO LOPES DE.
ABSTRACT The aim of this study was to evaluate the response of mango plants ( L) ‘Mangifera indicaTommy Atkins’ cultivar to different NaCl concentrations. In this experiment, plants were grown in pots with washed sand and nutrient solution with 0, 10, 20 and 30 mM NaCl for 120 days. After this period, young leaves from the last growth spurt were harvested in a randomized block design, dried at 65 °C for 72 h and ground in a ball mill. Samples were dried again in an oven at 60 °C for 24 h and then the relative abundance of 13C and 12C isotopes was determined using mass spectrometer Sercon 20-20 isotope ratio model. Data were used to determine the carbon isotopic discrimination (?). It was concluded that ‘Tommy Atkins’ mango trees submitted to 30 mmol L-1...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Mangifera indica; Salinity; Isotopes.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000703001
Imagem não selecionada

Imprime registro no formato completo
Composition des isotopes stables du molybdène dans les carbonates du Précambrien : affinement du proxy et applications paléo-environnementales ArchiMer
Thoby, Mary.
The redox conditions of the oceans evolved considerably during the Precambrian. This is mainly due to the arrival of the oxygen, at first generating oxygen oases, and then accumulating in the atmosphere during the Great Oxidation Event (GOE) ca. 2.45 Ga. However, the earliest traces of free oxygen during these periods, and the mechanisms of their sedimentary expression, remain poorly understood. For over a decade, the isotopic composition of molybdenum (δ98Mo) in sediments has been used as a global marine redox proxy.An elemental and isotopic study of the different phases constituting carbonate rocks was carried out using sequential digestions performed on carbonates of different ages and depositional environments. The results show that Mo is primarily...
Tipo: Text Palavras-chave: Redox; Précambrien; Carbonates; Molybdène; Isotopes; Attaque séquentielle; Sequential digestion; Precambrian; Molybdenum.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00663/77462/79129.pdf
Imagem não selecionada

Imprime registro no formato completo
Dinâmica do carbono na conversão de floresta para pastagens em argissolos da formação geológica Solimões, no sudoeste da Amazônia. Repositório Alice
SALIMON, C. I.; WADT, P. G. S.; MELO, A. W. F. de..
O objetivo deste trabalho foi avaliar a dinâmica, o estoque e a razão isotópica do carbono nos três tipos de uso da terra do sudoeste da Amazônia, onde predominam Argissolos com argilas de alta atividade. Foram selecionados dois locais da região leste do Estado do Acre e, em cada local, abriram-se trincheiras nas quais foram coletadas amostras indeformadas nas profundidades de 0 a 5, 5 a 10, 20 a 25 e 50 a 55cm, sob cobertura de floresta primária, floresta secundária e pastagens. Nas amostras, determinou-se a densidade aparente, teor de carbono e a razão isotópica do carbono, além de características físicas (granulometria) e químicas (pH, teores de cátions trocáveis, acidez potencial). Os resultados mostraram que o uso do solo com pastagens foi responsável...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Pasture-forest conversion; Conversión pasto-bosque; Argissolo; Dinâmica do carbono; Ultisoils; Razão isotópica; Mudança climática global; Formação Solimões; Sudoeste da Amazônia; Uso da terra; Pastagem; Floresta; Solo argiloso; Propriedade físico-química; Carbono; Estoque; Isótopo; Land use; Pastures; Clay soils; Soil chemical properties; Soil physical properties; Isotopes; Carbon sinks; Climate change; Southwestern Amazon; Uso de la tierra; Pastizales; Suelos arcillosos; Propiedades químicas del suelo; Propiedades fìsicas del suelo; Isótopo; Reservorios de carbono; Cambio climático; Amazon sudoriental.
Ano: 2007 URL: http://www.alice.cnptia.embrapa.br/handle/doc/497730
Imagem não selecionada

Imprime registro no formato completo
Efeito da fitase na biodisponibilidade do fósforo do farelo de arroz em frangos de corte. Repositório Alice
CONTE, A. J.; TEIXEIRA, A. S.; FIGUEIRÊDO, A. V. DE; VITTI, D. M. S. S.; SILVA FILHO, J. C. da.
O trabalho objetivou determinar a ação da enzima fitase sobre a biodisponibilidade do fósforo do farelo de arroz em dietas de frangos de corte, pela técnica de diluição isotópica. Os tratamentos consistiram de uma dieta sem farelo de arroz integral e sem suplementação de fósforo inorgânico (0,388% de P total), e quatro dietas com 15% de farelo de arroz integral, sem suplementação de fósforo inorgânico (0,56% de P total) e com quatro níveis de fitase (0, 400, 800 e 1,200 FTU/kg). No quinto dia do experimento, cada ave recebeu, via peritonial, 3,5 MBq de 32P. Nos quatro dias subseqüentes, coletaram-se amostras de sangue e excretas para as análises. As perdas endógenas fecais, a absorção aparente e verdadeira de fósforo e o fósforo no plasma aumentaram de...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Absorção; Excreção; Nutrientes; Isótopos; Técnicas de rastreio; Absorption; Excretion; Nutrients; Isotopes; Tracer techniques.
Ano: 2002 URL: http://www.alice.cnptia.embrapa.br/handle/doc/107377
Imagem não selecionada

Imprime registro no formato completo
Estudio de las tramas tróficas asociadas a diferentes densidades de vieira Patagónica Zygochlamys patagonica del Atlántico SO mediante el uso de isótopos estables OceanDocs
Schwartz, M..
Zygochlamys patagonica (King and Broderip, 1832) is an ecosystem engineer mollusk which forms aggregations or banks, of different densities, in the main frontal systems of the SW Atlantic Ocean. The objectives of this work were to analyze the composition, biomass, diversity and species richness of the benthic invertebrate assemblages at different scallop densities as well as the variability of their trophic webs at high and low scallop densities. For this, samples of the benthic invertebrate assemblages were taken at the Shelf Break Front with a non-selective epibenthic dredge. It was evaluated if the abundance (ind/m2) or biomass (colonial species, gr/m2) of the different taxa varied with scallop densities. The results showed that from 14 analyzed, the...
Tipo: Theses and Dissertations Palavras-chave: Benthos; Ecological associations; Trophic relationships; Food webs; Biomass; Isotopes; Shelf fronts; Zygochlamys patagonica; Marine environment.
Ano: 2011 URL: http://hdl.handle.net/1834/4521
Imagem não selecionada

Imprime registro no formato completo
Evaluation of cation-anion diets in calcium metabolism in ruminants R. Bras. Zootec.
Oliveira,Ana Alix Mendes de Almeida; Vitti,Dorinha Miriam Silber Schmidt; Oliveira,Simone Raymundo de; Costa,Patrícia Barcellos; Neres,Marcela Abbado; Hermes,Paula Regina; Cavilhão,Cristiani; Konieczniak,Paula.
The objective of this study was to evaluate the use of the dietary cation-anion balance (DCAB) on the calcium metabolism in male Nellore steers with a mean age of 10 months. Three experimental diets were tested: a cationic diet, a diet consisting of Tifton hay only, and an anionic diet with +15.2, +23.9 and −10.0 mEq/100 g DM of DCAB values in the diet. The anionic diet was calculated as the addition of salts of ammonium chloride and magnesium sulfate. Based on the isotope dilution technique, the negative DCAB value used in this study (−10.0 mEq/100 g DM) does not affect calcium metabolism, especially endogenous losses and true absorption.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cattle; Feeds; Isotopes; Mineral metabolism.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100601
Imagem não selecionada

Imprime registro no formato completo
Free gas and gas hydrates from the Sea of Marmara, Turkey Chemical and structural characterization ArchiMer
Bourry, Christophe; Chazallon, Bertrand; Charlou, Jean-luc; Donval, Jean-pierre; Ruffine, Livio; Henry, Pierre; Geli, Louis; Cagatay, M. Namik; Inan, Sedat; Moreau, Myriam.
Gas hydrates and gas bubbles were collected during the MARNAUT cruise (May-June 2007) in the Sea of Marmara along the North Anatolian Fault system, Turkey. Gas hydrates were sampled in the western part of the Sea of Marmara (on the Western High), and three gas-bubble samples were recovered on the Western High, the Central High (center part of the Sea of Marmara) and in the Cinarcik Basin (eastern part of the Sea of Marmara). Methane is the major component of hydrates (66.1%), but heavier gases such as C-2, C-3, and i-C-4 are also present in relatively high concentration. The methane contained within gas hydrate is clearly thermogenic as evidenced by a low C-1/C-2 + C-3 ratio of 3.3, and carbon and hydrogen isotopic data (delta C-13(CH4) of -44.1 parts per...
Tipo: Text Palavras-chave: Isotopes; Thermogenic gas; Gas bubbles; Gas hydrate; Sea of Marmara.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6844.pdf
Imagem não selecionada

Imprime registro no formato completo
Ge and Si isotope signatures in rivers: A quantitative multi-proxy approach ArchiMer
Baronas, J. Jotautas; Torres, Mark A.; West, A. Joshua; Rouxel, Olivier; Georg, Bastian; Bouchez, Julien; Gaillardet, Jerome; Hammond, Douglas E..
Solutes derived from the dissolution of silicate minerals play a key role in Earth’s climate via the carbon and other biogeochemical cycles. Silicon (Si) is a unique constituent of silicate minerals and a biologically important nutrient, so tracing its behavior in near-surface environments may provide important insights into weathering processes. However, Si released by weathering is variably incorporated into secondary mineral phases and biota, obscuring signals derived from primary weathering processes. Due to chemical similarities, Germanium (Ge) may help better understand the Si cycle and its relationship to chemical weathering. With this aim, we report new measurements of the concentration and isotopic composition of Ge for both the dissolved and...
Tipo: Text Palavras-chave: Germanium; Silicon; Isotopes; Rivers; Weathering; Fractionation.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00460/57196/59370.pdf
Imagem não selecionada

Imprime registro no formato completo
Glacial-interglacial modulation of the marine nitrogen cycle by high-latitude O-2 supply to the global thermocline ArchiMer
Galbraith, Ed; Kienast, M; Pedersen, Tf; Calvert, Se.
An analysis of sedimentary nitrogen isotope records compiled from widely distributed marine environments emphasizes the global synchrony of denitrification changes and provides evidence for a strong temporal coupling of these variations to changes in nitrogen fixation as previously inferred. We explain the global coherence of these records by a simple physical control on the flux of dissolved oxygen to suboxic zones and the coupling to fixation via the supply of phosphorus to diazotrophs in suitable environments. According to our hypothesis, lower glacial-stage sea surface temperature increased oxygen solubility, while stronger winds in high-latitude regions enhanced the rate of thermocline ventilation. The resultant colder, rapidly flushed thermocline...
Tipo: Text Palavras-chave: Isotopes; Fixation; Denitrification.
Ano: 2004 URL: https://archimer.ifremer.fr/doc/00229/34026/32421.pdf
Imagem não selecionada

Imprime registro no formato completo
Helium isotopes at the Rainbow hydrothermal site (Mid-Atlantic Ridge, 36 degrees 14 ' N) ArchiMer
Jean Baptiste, Philippe; Fourre, Elise; Charlou, Jean-luc; German, Christopher; Radford Knoery, Joel.
The He-3/He-4 ratio and helium concentration have been measured in the vent fluids and the dispersing plume of the Rainbow hydrothermal site, on the Mid-Atlantic Ridge (MAR). The He-3/He-4 ratio (7.51 R-a) and He-3 end-member concentration (25 pmol/kg) are in the range of observed values elsewhere on mid-ocean ridges, pointing to the relative homogeneity of the upper mantle with respect to helium isotope geochemistry. He-3 is linearly correlated with methane and manganese throughout the plume, with CH4/He-3 and Mn/He-3 ratios identical to those measured in the hot fluids. The bulk residence time of the plume in the rift valley estimated from the plume He-3 budget is similar to20 days. The He-3 flux transported by the plume, calculated from current-meter...
Tipo: Text Palavras-chave: Mid Atlantic Ridge; Heat flux; Isotopes; Hydrothermal vents; Helium.
Ano: 2004 URL: https://archimer.ifremer.fr/doc/2004/publication-772.pdf
Imagem não selecionada

Imprime registro no formato completo
Human mobility on the Brazilian coast: an analysis of strontium isotopes in archaeological human remains from Forte Marechal Luz Sambaqui Anais da ABC (AABC)
Bastos,Murilo Q. R; Souza,Sheila M. F. Mendonça de; Santos,Roberto V; Lima,Bárbara A. F; Santos,Ricardo V; Rodrigues-Carvalho,Claudia.
This study investigated strontium isotopes in the dental enamel of 32 human skeletons from Forte Marechal Luz sambaqui (shellmound), Santa Catarina, Brazil, aiming at identifying local and non-local individuals. The archeological site presents pot sherds in the uppermost archeological layers. Dental enamel was also examined from specimens of terrestrial fauna (87Sr/86Sr = 0. 71046 to 0. 71273) and marine fauna (87Sr/86Sr = 0. 70917). The 87Sr/86Sr isotope ratio for individuals classified as locals ranged from 0. 70905 to 0. 71064 and was closer to the isotope ratio of the seawater than to the ratio of the terrestrial fauna, indicating a strong influence of marine strontium on the inhabitants of this sambaqui. The results indicate the existence of three...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Human mobility; Isotopes; Prehistory; Shellmounds; Strontium.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000200030
Imagem não selecionada

Imprime registro no formato completo
Iron absorption from biofortified beans evalueted by stable isotopes. Repositório Alice
JUNQUEIRA-FRANCO, M. V. M.; NUTTI, M. R.; CARVALHO, J. L. V. de; ABRAMS, S.; MARCHINI, J. S.; OLIVEIRA, J. E. D. de.
ABSTRACT - The introduction of biofortified crops like beans with higher iron content is a useful tool in preventing diseases such as anemia. The biofortification aims to reach the root of the problem of malnutrition, targets the neediest population, uses embedded distribution mechanisms, is scientifically feasible and effective in terms of cost, and complements other ongoing interventions to control micronutrient deficiency. Thus the measurement of mineral absorption is essential to enable the use of biofortified crops. This study evaluated the iron bioavailability of common bean varieties BRS Estilo and iron biofortified BRS Pontal in man through reliable techniques and have not yet used in Brazil. The beans used was produced by EMBRAPA / Agro Food....
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Isótopos; Isotopes; Biodisponibilidade; Bioavailability; Ferro; Iron; Feijão; Beans.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1027871
Imagem não selecionada

Imprime registro no formato completo
New insights into the origin and distribution of the DUPAL isotope anomaly in the Indian Ocean mantle from MORB of the Southwest Indian Ridge ArchiMer
Meyzen, Cm; Ludden, Jn; Humler, E; Luais, B; Toplis, Mj; Mevel, C; Storey, M.
We report new Sr, Nd, and Pb isotope data for Mid-Ocean Ridge Basalts (MORB) dredged between 35 and 69 degrees E along a similar to 4100 km section of the Southwest Indian Ridge (SWIR), which is one of the slowest spreading ridges of the global mid-ocean ridge system ( full rate of 16 mm yr(-1)). The SWIR appears isotopically more heterogeneous than other mid-ocean ridges over similar length scales and comparable sampling density. Isotopic variations are generally independent of ridge segmentation, and the degree of heterogeneity decreases from west to east. This decrease in heterogeneity correlates with the observed increase in axial depth and decrease in crustal thickness, commonly attributed to decreasing mantle potential temperature. Data for the...
Tipo: Text Palavras-chave: Southwest Indian Ridge; MORB; Isotopes; Indian Ocean; Lower crust; Mantle.
Ano: 2005 URL: https://archimer.ifremer.fr/doc/00232/34286/32655.pdf
Imagem não selecionada

Imprime registro no formato completo
Origine, devenir et contrôle de la matière particulaire dans les élevages de poissons marins en système recyclé ArchiMer
Franco, Miguel.
The particulate matter plays an essential role in the functioning of recirculating aquaculture systems (RAS). Rich in organic substances, it provides ideal conditions for the bacterial development, which contribute to its mineralization. The understanding of interactions between the bio-geochemical cycles of carbon and nitrogen in these processes is necessary to define an effective and adapted management of aquaculture facilities. A methodology using natural stable isotopes (13C and 15N) and elemental carbon and nitrogen analysis on particulate matter, allows to identify its sources and to quantify its fluxes. Applying this methodology, we found an enrichment of 13C in dorsal muscle of reared fish and non differences of 13C in fish liver compared to the...
Tipo: Text Palavras-chave: Nitrogen; Carbon; Isotopes; Organic matter; Particulate matter; Dicentrarchus labrax; Seabass; Recirculating systems; Aquaculture; Azote; Carbone; Isotopes; Matière organique; Matière particulaire; Dicentrarchus labrax; Bar; Système de recirculation; Aquaculture.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/these-322.pdf
Imagem não selecionada

Imprime registro no formato completo
Palisadegrass effects on N fertilizer dynamic in intercropping systems with corn. Repositório Alice
ALMEIDA, R. E. M. de; OLIVEIRA, S. M. de; LAGO, B. C.; P. JUNIOR, C.; TRIVELIN, P. C. O.; FAVARIN, J. L..
Corn grain yield, nitrogen (N) fertilizer efficiency and distribution to corn alone and three forms of corn and palisadegrass (Urochloa spp.) intercropping implantation was investigated. A field experiment with 15N labeling fertilizer was performed in randomized block design. No form of palisadegrass intercropping implantation affected corn grain yield, total N accumulation and N use efficiency (NUE), which were 8.7 t ha-1, 205 kg ha-1 and 37% respectively. The palisadegrass produced on average 1.9 t of dry mass, absorbing a maximum of 6 kg ha-1 or 5.5% of N fertilizer during corn growing. Furthermore, the palisadegrass did not affect N fertilizer distribution in soil-plant system, in which 28.2% was recovered in the soil and 40.4% in the plants (corn +...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Urochloa spp; Plantio direto; Fertilizante nitrogenado; Milho; Isotopes; No-tillage; Urochloa; Corn; Nutrient use efficiency.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1078379
Imagem não selecionada

Imprime registro no formato completo
Phase lag between Intertropical Convergence Zone migration and subtropical monsoon onset over the northwestern Indian Ocean during Marine Isotopic Substage 6.5 (MIS 6.5) ArchiMer
Malaize, B.; Joly, C.; Venec-peyre, M. -t.; Bassinot, F.; Caillon, N.; Charlier, K..
High-resolution faunal and isotopic analyses of foraminifera were performed on core MD96-2073 (10 degrees 94'N, 52 degrees 62'E, 3142 m depth), located close to Socotra Island in the upwelling area of the Somali Basin ( NW Indian Ocean). This work focuses on Marine Isotopic Stage 6.5 in order to reconstruct paleo-upwelling changes and their links with the Arabian Sea summer monsoon and the migration of the Intertropical Convergence Zone (ITCZ). Correspondence and cluster analyses of planktonic foraminiferal abundances, partly controlled by temperature and water mass productivity, together with an upwelling intensification index, show the occurrence of a strong upwelling between 176 and 165 ka. This upwelling intensification responds to a northward...
Tipo: Text Palavras-chave: Paleoclimatology; Foraminifera; Isotopes; Indian monsoon; ITCZ; Sapropels; Upwelling.
Ano: 2006 URL: https://archimer.ifremer.fr/doc/00234/34487/33433.pdf
Imagem não selecionada

Imprime registro no formato completo
Primary carbon sources for juvenile penaeid shrimps in a mangrove-fringed Bay of Inhaca Island, Mozambique: a dual carbon and nitrogen isotope analysis OceanDocs
Macia, A..
A study to estimate the relative importance of mangrove primary carbon and nitrogen sources to five commercial penaeid shrimps species was done at Saco da Inhaca, a non-estuarine mangrove-fringed bay on Inhaca Island, southern Mozambique. Carbon and nitrogen stable isotope ratios were determined in a variety of primary producers (mangroves, epiphytes, phytoplankton and seagrasses), sediments and in five penaeid shrimp species (Penaeus (Fenneropenaeus) indicus, P. japonicus, P. semisulcatus, Metapenaeus monoceros and M. stebbingi), collected within the bay in different habitats and during two different periods. The penaeid shrimps showed 13C values ranging from â 13 to â 19 â °, (average of â 15.6 ± 0.4 â °, n=19) which is highly enriched compared to...
Tipo: Journal Contribution Palavras-chave: PENAEUS INDICUS; METAPENAEUS MONOCEROS; METAPENAEUS STEBBINGI; PENAEUS SEMISULCATUS; MARSUPENAEUS JAPONICUS; Shrimp culture; Nitrogen; Mangrove swamps; Carbon; Isotopes; Penaeid shrimp fisheries.
Ano: 2004 URL: http://hdl.handle.net/1834/1120
Registros recuperados: 34
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional