Marine Macroalgae
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. A review of common parameters and descriptors used in studies of the impacts of heavy metal pollution on marine macroalgae: identification of knowledge gaps and future needs
ABSTRACT This study presents a systematic review to assess the main similarities and gaps in efforts to evaluate the impacts of heavy metals on benthic marine seaweeds. A total of 91 studies were compiled, the main parameters (abiotic, biological, ecotoxicological, and heavy metals) and descriptors of which were evaluated by quantitative and qualitative ana
Acta Bot. Bras.. Publicado em: 2020-09
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2. Efecto inhibidor del dióxido de germanio sobre el biofouling del puerto de Mar del Plata
ABSTRACT Marine biofouling on any new material immersed in seawater can lead to extra costs due to increased maintenance, or/and even mechanical wear, and/or biodeterioration that require costly antifouling measures. Fouling organisms growing on immersed manmade surfaces affect hulls, piers, buoys, aquaculture and pipes mainly. Following adsorption of a cond
Matéria (Rio J.). Publicado em: 05/03/2018
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3. Antibacterial, antifungal and cytotoxic activities exhibited by endophytic fungi from the Brazilian marine red alga Bostrychia tenella (Ceramiales)
Abstract Marine environment is one of the most important sources regarding natural products research. Besides, marine microorganisms have been denominated as a talented natural source for discovery of new leads. Although the association of macroalgae and fungi has been described regarding ecological issues, there is a lack of studies about marine seaweed end
Rev. bras. farmacogn.. Publicado em: 2015-12
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4. Polyplacophora (Mollusca) from reef ecosystems and associations with macroalgae on the Coast of Alagoas, Northeastern Brazil
ABSTRACT Brazilian marine molluscs, especially Gastropoda and Bivalvia, are relatively well studied. However, information on the class Polyplacophora is more scarce, particularly on reef-dwelling forms. This study aimed to qualitatively and quantitatively analyze aspects of polyplacophorans from reef ecosystems and their associations with macroalgae on the c
Zoologia (Curitiba). Publicado em: 2015-08
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5. Variation of amphipod assemblage along the Sargassum stenophyllum (Phaeophyta, Fucales) thallus
ABSTRACTThe spatial distribution of fauna associated to marine macroalgae has mostly been investigated considering a horizontal plane. However, the macroalgal substrates can present a three-dimensional structure. In this sense, investigating how the associated fauna varies throughout a vertical plane can contribute to understanding the distribution of these
Nauplius. Publicado em: 2015-06
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6. Descriptions of Cottoniella fusiformis, Branchioglossumcf. minutum and Frikkiella searlesii (Rhodophyta, Ceramiales) from the Brazilian continental shelf
The diversity and distribution of marine macroalgae along the Brazilian coast have been investigated in detail. However, information about the deep-water macroalgal flora remains scarce, available mostly in scattered publications or gray literature. In this context, the aim of this study was to describe three specimens of Rhodophyta (Cottoniella fusiformis,
Acta Bot. Bras.. Publicado em: 2014-12
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7. Evaluation of impacts of climate change and local stressors on the biotechnological potential of marine macroalgae: a brief theoretical discussion of likely scenarios
Climate change can be associated with variations in the frequency and intensity of extreme temperatures and precipitation events on the local and regional scales. Along coastal areas, flooding associated with increased occupation has seriously impacted products and services generated by marine life, in particular the biotechnological potential that macroalga
Revista Brasileira de Farmacognosia. Publicado em: 21/06/2012
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8. ComposiÃÃo centesimal e variaÃÃo do teor de vitaminas em macroalgas marinhas verdes Ulva fasciata e U. lactuca (Ulvales,Chlorophyta), coletadas na Praia do Pacheco, Caucaia-Cearà / Composition proximate and seasonal variation of vitamin content in marine green algae Ulva fasciata and U. lactuca (Ulvales, Chlorophyta), colleted at Pacheco Beach, CearÃ, Brazil
As macroalgas marinhas apresentam elevadas quantidades de proteÃnas, fibras, sais minerais e vitaminas lipossolÃveis, possuem conteÃdo de lipÃdios relativamente baixo, embora seus Ãcidos graxos constituintes tenham elevado grau de insaturaÃÃo. A maioria desses compostos varia de acordo com a Ãpoca do ano e com as condiÃÃes ecolÃgicas que podem est
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/11/2011
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9. Macroalgas marinhas associadas a bancos de rodolitos do infralitoral do Espírito Santo, Brasil / Marine macroalgae associated to rodoliths beds from Espírito Santo state, Brazil
Macroalgas têm sido descritas no Brasil desde a região entremarés até cerca de 120 metros de profundidade na plataforma continental. O objetivo deste trabalho foi a caracterização da flora marinha bêntica em bancos de rodolitos entre 20-30 metros de profundidade, do infralitoral sul do estado do Espírito Santo. Os métodos utilizados neste projeto in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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10. Glycolipids from macroalgae: potential biomolecules for marine biotechnology?
Brown, red and green algae from the Southeastern coast of Brazil were successively extracted with chloroform/methanol 2:1 and 1:2 (v/v). The crude lipid extract was partitioned according to Folch and the lower phase enriched in glycolipids was fractionated on a silica gel column chromatography eluted with chloroform, acetone and methanol. Three major orcinol
Revista Brasileira de Farmacognosia. Publicado em: 01/04/2011
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11. ResÃduos sÃlidos bentÃnicos em ambientes recifais de Pernambuco e na abordagem das operadoras de mergulho
Benthic marine debris are those debris deposited on the bottom of the oceans. Studies of this type of pollutant are still scarce all over the world, both about the qualiquantification, as well as about the understanding of how social actors linked to the marine environment are behaving on this issue. Thus, this study aimed to qualiquantify the benthic marine
Publicado em: 2009
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12. Efeitos da radiação ultravioleta-b sobre a morfisiologia de kappaphycus alvarezii (DOTY) doty ex P. Silva (gigartinales) variantes pigmentares verde e vermelha
The effects of ultraviolet radiation in the biological relevant wavebands of UV-A (315#400 nm) and UV-B (280#315 nm) on algae have become an important issue as a man-made depletion of the protecting ozone layer has been reported. However, experimental designs to investigate this issue are manifold and the target organisms are extremely diverse. Data are incl
Publicado em: 2009