Consulta: subjectFacets:"Bleaching"
Registros recuperados: 4
Data/hora: 03/06/2024 05:35:11

Polpas branqueadas de misturas de madeiras da Amazônia.
Provedor de dados: 14
Autores: MELO, C. F. M. de; ALVES, S. de M.; RODRIGUES, N. O.
bitstream/item/31959/1/CPATU-BP82.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Branqueamento; Brasil; Mixture.; Madeira; Mistura; Papel; Polpa; Tecnologia.; Amazonia; Bleaching; Paper; Pulp; Technology; Wood.
Ano: 1987
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383677

Control of bleaching in mushroom coral populations (Scleractinia: Fungiidae) in the Java Sea: stress tolerance and interference by life history strategy
Provedor de dados: 16
Autores: Hoeksema, B.W.
Bleaching was studied in populations of phylogenetically closely related species (n = 21) of mushroom corals (Scleractinia: Fungiidae) around Pari Island (Java Sea) during a period of excessive seawater warming in 1983. The interspecific variation in the proportions of affected individuals was significant. Spatial variation in the degree of bleaching anlong fungiid assemblages depended much on relative species abundances. Mushroom corals In relatively stagnant water of lagoons and on the inner reef flat showed little bleaching. Many of the outer reef mushroom corals at ≤ 9 m depth were affected, but only a few at greater depths (≥15 m). In most affected fungiids, the bleached part was pale (associated with pigment loss) instead of white (assumedly caused...
Tipo: Article / Letter to the editor
Palavras-chave: Mushroom corals; Scleractinia; Fungiidae; Bleaching; Java Sea; Pari Island; 42.79.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/227741

Decoloración de alginato de sodio extraído de las algas pardas marinas del género sargassum con el uso de peróxido de hidrógeno
Provedor de dados: 20
Autores: Regalado, E.L.; Laguna, A.; Torres, M.; Sabatier, J.D.; Hernández, M.; Ferrer, A.E.; Nogueiras, C.
Hydrogen peroxide bleaching of sodium alginate from seaweeds oh the Sargassum genus was studied. The influence of H2O2 concentration (percentage of H2O2 on a dry weight alginate basis, w/w) and NaOH/H2O2 ratio (% NaOH/% H2O2, both referred to a dry weight alginate basis, w/w) on the molecular weight, color removal and content of Fe3+ ions of bleached alginate samples was investigated by UV and IR spectroscopies, colorimetric determination of Fe3+ ions and vapor pressure osmometry. Higher yield, purity and molecular weight of alginate were obtained using 3% (or less) of hydrogen peroxide and a NaOH/H2O2 ratio of 1.2 for bleaching.
Tipo: Journal Contribution
Palavras-chave: Bleaching; Bleaching; Http://aims.fao.org/aos/agrovoc/c_953.
Ano: 2007
URL: http://hdl.handle.net/1834/3855

Corales, formaciones arrecifales y blanqueamiento de 1987 en Bahía Portete (Guajira, Colombia)
Provedor de dados: 20
Autores: Solano-P., Oscar D.
Para el reconocimiento y caracterización de las formaciones arrecifales de Bahía Pórtete se visitaron un total de 22 estaciones entre junio de 1987 y enero de I988. Se registraron por primera vez Acropora cervicomis, Agaricia agaricites, Montastrea cavernosa, Diploría clivosa e Isophyllia sinuosa, elevando a 18 el número de especies de escleractinios de la bahía. El componente principal por su abundancia y diversidad de formas fue el hidrocoral Millepora alcicomis. Las formaciones arrecifales del área se concentran sobre los costados oeste y suroeste, sin llegar a constituirse en verdaderos arrecifes. Estructuralmente se discriminan dos tipos de formaciones: tipo 1 parches arrecifales y tipo 2 praderas de fanerógamas con colonias dispersas de M. alcicomis....
Tipo: Journal Contribution
Palavras-chave: Bleaching; Ecology; Geographical distribution; Habitat; Population structure; Population dynamics; Turbidity; Density; Species diversity; Ecology; Geographical distribution; Population structure; Turbidity; Bleaching; Population dynamics; Density; Species diversity; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_15043; Http://aims.fao.org/aos/agrovoc/c_953; Http://aims.fao.org/aos/agrovoc/c_6111; Http://aims.fao.org/aos/agrovoc/c_2186; Http://aims.fao.org/aos/agrovoc/c_33954.
Ano: 1994
URL: http://hdl.handle.net/1834/3782