Marine Ecosystem
Mostrando 13-24 de 71 artigos, teses e dissertações.
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13. Toxic effects of cadmium on the microalgae Lingulodinium polyedrum using high performance liquid chromatography coupled to mass spectrometry (LC-MS/MS) / Análise dos efeitos tóxicos de cádmio sobre a microalga Lingulodinium polyedrum utilizando cromatografia líquida de alta eficiência acoplada à espectrometria de massas (LC-MS/MS)
Given the increase of environmentally harmful human activities, in particular the ones injurious to the aquatic environment, it is important to elucidate the defense mechanisms utilized by organisms exposed to damaging agents. Those species can later be suggested to be used as pollution bioindicators or bioremediatiors. Algae are of particular importance bec
Publicado em: 2010
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14. Os Nematoda da plataforma continental da região sudeste brasileira sob a influência da Água Central do Atlântico Sul: Cabo Frio (RJ) e Ubatuba (SP) / The Nematoda of the continental shelf of the Brazil\ s southern region under the influence of the South Atlantic Central Water intrusion: Cabo Frio (RJ) and Ubatuba (SP)
Meiofauna is an important component of the marine benthic ecosystem as its densities are usually high in continental shelf sediments and respond quickly to environmental changes. Nematoda is the dominant group among meiofauna organisms, is highly diverse and can be used, as well as meiofauna, as a tool for natural and anthropogenic impacts monitoring. This s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/09/2009
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15. Diversity of Chitinolytic bacteria isolated from seawater and plankton samples collected at São Paulo Coast, Brazil. / Diversidade de bactérias quitinolíticas isoladas em amostras de água do mar e plâncton coletadas na região costeira do estado de São Paulo.
Chitinolytic bacteria are autochthonous in marine ecosystems and have an important role in chitin degradation process. A very little is know about the diversity and enzymatic potential of chitinolytic bacteria isolated from coastal tropical environments. Seawater and plankton samples were collected at Canal de São Sebastião, Baixada Santista and Ubatuba. C
Publicado em: 2009
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16. Frequência e diversidade de colifagos somáticos isolados de amostras de água do mar, plâncton e bivalves da baixada santista, canal de São Sebastião e Ubatuba. / Frequency and diversity of somatic coliphages isolated from seawater, plankton and bivalves samples from baixada Santista, Canal de São Sebastião e Ubatuba.
The somatic coliphages (SC) are the better indicator for fecal pollution. In this research, it was obtained the SC abundance in seawater, plankton and bivalves samples collected from Santos, São Sebastiâo and Ubatuba. SC counts were correlated with marine viable bacteria, thermotolerant coliforms, E. coli and intestinal enterococci, and the correlation was
Publicado em: 2009
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17. MesozooplÃncton da Bacia do Pina, Recife, Pernambuco
This study aimed to describe the structure of the mesozooplankton community from the Pina Basin, Recife, PE-Brazil. Different time scales were used: tidal, seasonal and on a spatial gradient: from the interior of the estuary, subject to continental influence, and until the connection to the ocean, with more marine influence. The zooplankton was analyzed in t
Publicado em: 2009
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18. Diversity of endophytic diazotrophic bacteria of red mangrove (Rhizophora mangle) and evalution of the biotechnological potential. / Diversidade de bactérias diazotróficas endofíticas de mangue vermelho (Rhizophora mangle) e avaliação do potencial biotecnológico.
Mangroves are considered a coastal ecosystem, located in the transition between the terrestrial and marine environments. This environment is typical of tropical and subtropical regions and is found throughout the world, mainly in Brazil, Indonesia and Australia. The occurrence of a large amount of organic matter enhances the fact that microorganisms are impo
Publicado em: 2009
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19. Fenologia, ecologia da polinizaÃÃo e reproduÃÃo de espÃcies de manguezal, no municÃpio de Goiana - PE
The mangal is a tropical ecosystem of the coastal and estuarine areas, and it is important to shelter the marine animals and for its reproduction, beside promote the increase of productivity of neighbor community. Its vegetation, the mangrove, is composed of a few species with proper feature, such as viviparity and aerial roots associated with breath. There
Publicado em: 2009
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20. Analysis microclimatic of mangroves in Barra of river Ribeira-Iguape / SP / Análise microclimática dos manguezais da Barra do Ribeira-Iguape/SP
The mangrove is defined as a coastal ecosystem of transition between terrestrial and marine environments and is characterized by salinized environment and the constant flooding caused by tides. With emphasis in the area of coastal systems Cananéia - Iguape, its importance is more related to the production of biomass, inserted in the natural bioenergy system
Publicado em: 2009
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21. Estudo comparativo dos copépodes Temora stylifera e T. turbinata na plataforma continental sudeste do Brasil no verão e inverno de 2002 / Comparative study of the Temora stylifera and T. turbinata on the southeastern Brazilian continental shelf im summer and winter of 2002
Marine biological invasions have impacts in several different levels in the recipient ecosystem, including those related to interactions with native species, especially those sharing similar ecological niches. The main goal of the present work was to investigate the distribution, abundance and biomass of Temora stylifera (native species) and T. turbinata (ex
Publicado em: 2009
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22. The impact of the use of high spatial resolution sea surface temperature data in a numerical weather prediction model / Impacto da utilização de dados de temperatura da superfície do mar de alta resolução espacial em um modelo de previsão numérica do tempo
Sea surface temperature (SST) is an important indicator of Earth´s climate. An accurate and global measurement of this parameter is of fundamental importance in applications related to climate studies, ocean-atmosphere interactions, marine ecosystem, etc. Special attention may be given to meteorological forecasts, where SST stands as an important boundary c
Publicado em: 2009
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23. Especificidades da gestão de unidades de conservação marinha: zoneamento tridimensional
In the Federal sphere, the methodology to elaborate management plans for integral protection protected areas (PA) has its focus on terrestrial ecosystems. But the experience on elaborating these plans shows that the methodology has some gaps when applied to marine PA and need adjustments mainly in the way of establishing the zoning and the delimitation crite
Publicado em: 2007
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24. Pesca, perfil socioeconÃmico e percepÃÃo ecolÃgica dos pescadores artesanais de Porto de Galinhas (PE)
This study has the following objectives: (i) to describe traditional fishing by motorized vessels in Porto de Galinhas, Ipojuca district, Pernambuco State, Brazil, in terms of the vessels and the technical fishing equipment used; (ii) to analyze the socioeconomic profile of the fishing community; (iii) to survey some ecological aspects of the fishermen and o
Publicado em: 2007