Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 6
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Contribution a l'etude de l'elevage de la crevette rose Palaemon serratus (Pennant) en captivite. ArchiMer
Campillo, Albert.
The growth of post-larval P. serratus has been studied until the appearance of secondary sexual characters, in order to eliminate the influence of sex ratio on the mean wt. The influence of temp on intermolt period and number of molts was observed in male and female kept individually. Different sorts of food of natural origin have been tested. The rearing of post-larval lots metamorphosed at different times of the yr showed that the growth of P. serratus is conditioned not only by the temp, but also by the season. The food conversion ratio was defined in relation to the sex and age of the prawns. Shelters allowed the author to obtain a ratio of survival which varied post-larvae per square meter. The sex ratio established from several breedings as soon as...
Tipo: Text Palavras-chave: Phaeodactylum tricornutum; Tetraselmis suecica; Artemia; Palaemon serratus; Crustacean culture; Larval development; Larvae; Induced breeding; Hatching; Controlled conditions; Laboratory culture; Rearing.
Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-2027.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude de l’influence de la concentration et de la spéciation de trace de cadmium sur la croissance et la physiologie d’une espèce phytoplanctonique ArchiMer
Millour, Mathieu.
The aim of this study is to establish a continuous culture of a diatom (Phaeodactylum tricornutum) in a photobioreactor. As soon as the culture is stable and regulated, increasing cadmium amounts are added to the culture to induce a metal stress in order to study its influence on the production of Volatile Reduced Sulphur Compounds (H2S, OCS, MeSH, DMS and DMDS), and on the production of ligands. In this report, the methods used to assess the continuous culture and to analyse RVSC and other ligands production are described. J This study allowed us to assess cadmium impact on the VRSC and on the production of ligands.
Tipo: Text Palavras-chave: Photobioréacteur; Phaeodactylum tricornutum; Cadmium; Composés Soufrés Réduits et Volatils; Culture en continu; Spéciation; Complexants.; Photobioreactor; Phaeodactylum tricornutum; Cadmium; Volatile Reduced Sulphur j Compound; Continuous culture; Speciation; Ligands.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/00306/41765/40978.pdf
Imagem não selecionada

Imprime registro no formato completo
Les métaux (Cd, Cu, Pb et Zn) dans la production des microalgues sur différents milieux de culture : biodisponibilité, bioaccumulation et impact physiologique ArchiMer
Gagneux-moreaux, Sindy.
The quality and the productivity of microalgal cultures depend on different physicochemical factors like salinity, pH, nutrient and trace element (including trace metals) concentration in the culture medium. During this doctoral study, the bioavailability of four metals for microalgae was tested in coastal seawater and several salt groundwaters. The bioavailability of a metal depends on its own total concentration as well as that of ligands in the medium, and on the relative affinity of each ligand towards the given metal. After a comparative study of the quality of algae grown in coastal seawater and salt groundwaters, the complexation capacities of these media were studied to allow a better understanding of the observed variations of metal...
Tipo: Text Palavras-chave: Metal speciation; Artifical medium DAM; Salt groundwater; Coastal seawater; Tetraselmis suecica; Skeletonema costatum; Phaeodactylum tricornutum; Haslea ostrearia; Spéciation métallique; Milieu artificiel DAM; Eau souterraine salée; Eau de mer; Tetraselmis suecica; Skeletonema costatum; Phaeodactylum tricornutum; Haslea ostrearia.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/these-3128.pdf
Imagem não selecionada

Imprime registro no formato completo
Relations trophiques entre huitre et milieu; influence de la concentration et de la taille des particules ArchiMer
Filia, M; Copello, M; Colomines, J.
At 15 degree C, different concentrations of Phaeodactylum tricornutum are given to Crassostrea gigas . Ingestion, filtration, respiration, ammonia excretion have been measured. All ecophysiological response, except dissolved excretion, are dependent of food concentration. Energy balances have been determined and selectivity of particle size observed.
Tipo: Text Palavras-chave: Crassostrea gigas; Bivalvia; Phaeodactylum tricornutum; Algae; Diets; Excretion; Respiration; Water filtration; Ingestion; Particle size; Energy balance; Food availability; Ecophysiology; Bilan énergétique; Ecophysiologie; Huître.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/1983/acte-1178.pdf
Imagem não selecionada

Imprime registro no formato completo
Response of CO2-starved diatom Phaeodactylum tricornutum to light intensity transition ArchiMer
Heydarizadeh, Parisa; Boureba, Wafaa; Zahedi, Morteza; Huang, Bing; Moreau, Brigitte; Lukomska, Ewa; Couzinet-mossion, Aurelie; Wielgosz-collin, Gaetane; Martin-jezequel, Veronique; Bougaran, Gael; Marchand, Justine; Schoefs, Benoit.
In this study, we investigated the responses of Phaeodactylum tricornutum cells acclimated to 300 mu mol m(-2) s(-1) photon flux density to an increase (1000 mmol m(-2) s(-1)) or decrease (30 mmol m(-2)s(-1)) in photon flux densities. The light shift occurred abruptly after 5 days of growth and the acclimation to new conditions was followed during the next 6 days at the physiological and molecular levels. The molecular data reflect a rearrangement of carbon metabolism towards the production of phosphoenolpyruvic acid (PEP) and/or pyruvate. These intermediates were used differently by the cell as a function of the photon flux density: under low light, photosynthesis was depressed while respiration was increased. Under high light, lipids and proteins...
Tipo: Text Palavras-chave: Phaeodactylum tricornutum; Carbon metabolism; Light regulation; Photosynthesis; Chlorophyll fluorescence; Pyruvate hub.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00395/50620/52341.pdf
Imagem não selecionada

Imprime registro no formato completo
Susceptibilidad a la radiación ultravioleta_B del dinoflagelado Alexandrium catenella Kofoid Balech y de la diatomea Phaeodactylum tricornutum Bohlin RChHN
MARTINEZ,GINGER; MOLINA,XIMENA; OLMEDO,MARIA ISABEL; MONTECINO,VIVIAN.
La susceptibilidad diferencial de microalgas a la radiación UV-B (RUV-B, 280 - 320 nm) genera patrones de predominio numérico dentro de los ensambles del fitoplancton. Sin embargo, a pesar que algunos eventos de floraciones algales nocivas (FAN) del dinoflagelado Alexandrium catenella han sido coincidentes con episodios de alta RUV-B en el extremo sur de Chile, se desconoce alguna relación de causalidad entre estos procesos. A través de los parámetros poblacionales tasa intrínseca de crecimiento (µ) y capacidad de carga (K), se determinó el efecto de la RUV-B sobre la dinámica poblacional de cultivos de A. catenella, la que fue comparada con la respuesta demográfica de cultivos de una diatomea susceptible a la RUV-B, Phaeodactylum tricornutum. Los...
Tipo: Journal article Palavras-chave: RUV-B; Alexandrium catenella; Phaeodactylum tricornutum; Crecimiento; Capacidad de carga.
Ano: 2000 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000200007
Registros recuperados: 6
Primeira ... 1 ... 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