Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 9
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Dinoflagelles toxiques sur les cotes francaises pendant l'ete 1983.Validite du test-souris pour le controle routinier de secteurs mytilicoles contamines par la toxine du Dinophysis. ArchiMer
Marcaillou-le Baut, Claire; Le Dean, Loic; Truquet, Philippe.
Following exceptional outbreak of toxic dinoflagellate species in Vilaine Bay (summer 1983) a survey was carried out: variations in phytoplankton abundance and distribution in water and in mussel guts were followed. In the same time toxicity studies using mouse-test were performed with contaminated shellfishes, and mouse-test calibration was attempted. In spite of sampling and analysis conditions could be open to criticism, results obviously showed relation between shellfishes toxicity and occurrence of responsible species: Dinophysis acuminata.
Tipo: Text Palavras-chave: Brittany; France; ANE; Dinophysis acuminata; Red tides; Toxicity tests; Food poisoning; Biological poisons; Mussel culture.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/1983/publication-1808.pdf
Imagem não selecionada

Imprime registro no formato completo
Doses efficaces en glyphosate et en 2,4-D pour le contrôle chimique des laitue d'eau (Pistia stratiotes, Linn.) et toxicité du glyphosate vis-à-vis des tilapias (Sarotherodon melanotheron). OceanDocs
Etien, N.; Kaba, N.; Amon Kothias, J.B..
Les effets toxiques des herbicides Round up (glyphosate)et 2,4-D (herbazol) ont été testés puis comparés sur des échantillons de salade d'eau (Pistia stratiotes, Linn., Aracées) mis en culture dans des aquariums en verre. Le glyphosate paraît plus toxique sur ces plantes que le 2,4-D. Il a été donc testé sur des juvéniles de tilapias Sarotherodon melanotheron.La dose léthale chez le tilapia (CL50=13.25mg.l-1) est 18,37 et 74 fois environ plus élevée que la dose toxique de glyphosate chez les plantes pour les profondeurs d'eau de 1,2 et 4 mètres respectivement
Tipo: Journal Contribution Palavras-chave: Toxicity tests; Plant control.
Ano: 1991 URL: http://hdl.handle.net/1834/5524
Imagem não selecionada

Imprime registro no formato completo
Etude des effets d'effluents de fabrication de dioxyde de titane sur le developpement larvaire d'un crustace decapode: Palaemon serratus (Pennant). ArchiMer
Lassus, Patrick; Maggi, Pierre.
The effluents are characterized by acidity produced by the presence of sulfuric acid, and a slight quantity of several metallic salts. Effects on the larval development of P. serratus are discussed.
Tipo: Text Palavras-chave: Palaemon serratus; Larval development; Toxicity tests.
Ano: 1977 URL: http://archimer.ifremer.fr/doc/1977/publication-1978.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude quantitative et qualitative des métallothioneines chez la daurade "Sparus aurata" exposée aux métaux lourds OceanDocs
Ameur, S.; Ghedira, J.; Guerbej, H.; Jebali, J.; Bouraoui, J.; Boussetta, H..
Dans l’environnement marin, les éléments traces peuvent s’accumuler dans les organismes à des concentrations supérieures à celles présentes dans l’eau. L’étude de la distribution tissulaire des métaux traces au niveau des organismes qui y sont exposés, constitue un aspect très important pour la compréhension de leur devenir. En outre, le suivi de la réponse biologique spécifique de ces organismes sentinelles aux xénobiotiques complète et consolide l’analyse chimique. Ce travail vise à étudier la distribution tissulaire des métaux traces et des métallothionéines (MTs) chez la daurade «Sparus aurata » traitée par un métal essentiel (le cuivre) et un métal non essentiel (le cadmium) à une concentration de 500µg /Kg de poids frais pendant 48 heures....
Tipo: Journal Contribution Palavras-chave: Animal organs; Bioaccumulation; Cadmium; Gills; Heavy metals; Metals; Pollutants; Pollution effects; Sediment pollution; Toxicity tests; Trace metals; Marine sciences; Biomarkers of exposure (organisms); Metallic elements.
Ano: 2009 URL: http://hdl.handle.net/1834/4448
Imagem não selecionada

Imprime registro no formato completo
In search of standardisation: A comparison of toxicity bioassays on two marine crustaceans (Palaemon serratus and Tigriopus brevicornis). ArchiMer
Le Dean, Loic; Devineau, J.
In order to mitigate the insufficiency of the number of currently available toxicity tests in marine middle, two studies on the effects of cadmium and zinc were carried through with two marine crustaceans: the prawn Palaemon serratus and a copepoda Tigriopus brevicornis. The comparison of methodologies (rearing conditions - experimental procedure) and results obtained allowed to show the advantages and the disadvantages of these two tests in order to consider a standardization.
Tipo: Text Palavras-chave: Copepoda; Decapoda; Pollution tolerance; Toxicity tests; Marine crustaceans.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/publication-1780.pdf
Imagem não selecionada

Imprime registro no formato completo
State of the science and the way forward for the ecotoxicological assessment of contaminated land PAB
Kuperman,Roman G.; Checkai,Ronald T.; Garcia,Marcos Vinicius Bastos; Römbke,Jörg; Stephenson,Gladys L.; Sousa,José Paulo.
Over the past two decades, soil ecotoxicologists have made strides in utilizing the basic concepts and advancements in soil zoology and ecology. They have applied the existing tools, and developed new ones to investigate how chemical contamination can affect soil ecosystems, including the degradation or destruction of soil quality and habitats or the diminishment of belowground biodiversity. Soil ecotoxicologists are applying a suite of standard protocols, originally developed as laboratory tests with single chemicals (e.g., pesticides), and further enhancing both the approaches and protocols for the assessment of contaminated lands. However, ecological relevance of some approaches remains unresolved. The authors discuss the main challenges for a coherent...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Contamination; Ecological relevance; Ecological risk assessment; Soil pollution; Terrestrial model ecosystems; Toxicity tests.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800004
Imagem não selecionada

Imprime registro no formato completo
Tolerance tests with three refined petroleum products and edible mollusc - Tympanotonus fascatus (Linne) OceanDocs
Oyewo, E.O..
The tolerance of Tympanotonus fuscatus (linne) to films and dispersions of three refined petroleum products has been investigated. The tolerance ranking was Diesel Oil > Kerosene > Petrol. The dispersions were more deleterious to the test animals by varying orders of magnitude. Responsiveness and the capacity for proper orientation were adversely affected with the latter being affected before the former. An indication of upper threshold values for two of the observed responses is presented.
Tipo: Report Palavras-chave: Pollutant identification; Pollution; Toxicity tests; Tolerance; Pollution; Tolerance; Http://aims.fao.org/aos/agrovoc/c_6077; Http://aims.fao.org/aos/agrovoc/c_37740.
Ano: 1988 URL: http://hdl.handle.net/1834/2437
Imagem não selecionada

Imprime registro no formato completo
Toxicite de Detergents et d'un Dispersant sur Artemia salina Leach. ArchiMer
The authors study the toxic influence of 3 detergents (Tween 20 or Polysorbate 20, laurylsulfate of sodium, Secosyl or N-Lauroyl sarcosinate of sodium) and of a dispersent (Finasol OSR sub(2) or Dodecyl Sodium sulfate) on the hatching and the survival of the brine shrimp, (A. salina)). The determination of the DL sub(50) was effected after 24 h.
Tipo: Text Palavras-chave: Artemia salina; Hatching; Survival; Pollution effects; Chemical pollutants; Detergents; Dispersants; Toxicity tests.
Ano: 1980 URL: http://archimer.ifremer.fr/doc/1980/publication-1907.pdf
Imagem não selecionada

Imprime registro no formato completo
Toxicite et persistance en milieu marin d'un insecticide derive des benzoylurees: le diflubenzuron. ArchiMer
Alzieu, Claude.
The laboratory tests showed that the diflubenzuron does not present acute toxicity to shellfish and fish, but can affect the survival rate of Artemia salina and Palaemonetes varians, when its concentration rises to the level of its water solubility. The insecticide persistence in sea water had been found to be 3 weeks and its concentration factor in the fish after 52 days of exposure was very low. The use of dimilin in coastal zones for the eradication of caterpillars seems to have an insignificant impact on marine ecosystem, particularly on the molluscs.
Tipo: Text Palavras-chave: Toxicity tests; Insecticides.
Ano: 1977 URL: http://archimer.ifremer.fr/doc/1977/publication-1977.pdf
Registros recuperados: 9
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