Amazonian Lakes
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Effects of the introduction of an omnivorous fish on the biodiversity and functioning of an upland Amazonian lake
RESUMO A introdução de espécies não nativas é uma ameaça aos ecossistemas de água doce. Embora a onivoria e a predação intraguilda sejam comuns nesses sistemas, os efeitos da introdução de peixes onívoros nas comunidades pelágicas e litorâneas é pouco conhecido. Nós testamos as previsões da teoria da teia trófica considerando os efeitos da
Acta Amaz.. Publicado em: 12/08/2019
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2. Diet and ecomorphology of predator fish species of the Amazonian floodplain lakes
Resumo: Os lagos da várzea amazônica abrigam uma elevada riqueza de peixes predadores, com características morfológicas distintas, possibilitando explorar com sucesso várias presas disponíveis. Estas características morfológicas podem ser a associação mais próxima com suas fontes de alimentação preferidas (presa). Todavia, esta associação pode
Biota Neotrop.. Publicado em: 03/06/2019
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3. Understanding the Cerrado biome, medicinal properties of a Piperaceae, and consequences of seasonal variation in Amazonian upland lakes
An. Acad. Bras. Ciênc.. Publicado em: 2016-12
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4. Interconnectedness during high water maintains similarity in fish assemblages of island floodplain lakes in the Amazonian Basin
We conducted a study to test the hypothesis that interconnectedness among island floodplain lakes and the adjacent Solimões River during the flood stage of the hydrologic cycle is enough to maintain similarity in fish species assemblages. Gill net samples were collected during high and low water periods for three consecutive years (July 2004 to July 2006) i
Zoologia (Curitiba). Publicado em: 2010
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5. Influência da morfometria de lagos na diversidade fitoplanctônica
Morphometry is the measurement of various elements of form, and it includes methods to measure since the physical dimensions of an individual to the dimensions of a system. Morphological evaluations are good study mechanisms in many areas of science and work as fundamental tools from a microscopic scale to the dimensions of an ecosystem. In lakes, the unders
Publicado em: 2009
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6. Ecologia e modelagem da distribuição dos sítios de nidificação do jacaré-açu (Melanosuchus niger) em uma área de várzea da Amazônia Central, Brasil
The black caiman, Melanosuchus niger, is primarily an Amazonian species, its largest populations are associated mainly with interior várzea areas, but its nesting ecology related with these hydrologic dynamic environments is still poorly understood. The objectives of this study were related to the generation of information on the nesting ecology of this spe
Publicado em: 2009
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7. IMPLICAÇÕES LIMNO-ECOLÓGICAS DERIVADAS DA INFECÇÃO VIRAL NO PLÂNCTON
Virus are described as the most abundant and dynamic organisms in the aquatic environment, influencing communities composition and biogeochemical and ecological processes. These organisms are responsible for great part of the bacterial and phytoplanktonic mortality, for algal blooms decrease and for increasing the nutrients and carbon availability. Many prev
Publicado em: 2008
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8. Fauna helmintologica das especies amazonicas de peixes (Cichla monoculus e Brycon amazonicus) introduzidas nas lagoas da Fazenda Rio das Pedras, Campinas, SP / Helminthological fauna of amazon fish species (Cichla monoculus e Brycon amazonicus) introduced in two lakes of "Rio das Pedras" Farm, Campinas, São Paulo, Brazil
Samples of tucunaré (Cichla monoculus) and matrinxã (Brycon amazonicus) were collected biweekly in two lakes of Rio das Pedras farm, Campinas - SP, from June 2005 to September 2006 with the objective of researching the helminthological fauna of the Amazonian species introduced at these ponds. A total of 38 tucunarés and 16 matrinxãs were collected, taken
Publicado em: 2008
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9. Composição e abundância do fitoplâncton do sudoeste da Reserva Biológica do Lago Piratuba (Amapá, Brasil)
The present study was done on the southwest of the Lago Piratuba Biological Reserve, on Araguari river floodplain, Amapá coast region, Brazil. The environments were the lakes Comprido de Cima, Bacia, Lodão, Ventos, Grande and Comprido de Baixo and the Araguari River downstream. This region is submitted to an influence of the semidiurnal tide from the Amazo
Publicado em: 2007
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10. Imagens EOS-MODIS e LANDSAT 5 TM no estudo da dinâmica das comunidades de macrófitas na várzea amazônica / EOS-MODIS and LANDSAT 5 images for the study of macrophyte community dinamics in the Amazon varzea
Wetlands encompass about 4 to 6% of the terrestrial surface, occurring in all climates, from the tropics to the tundra, in all continents, and exhibit considerable function in the global carbon cycle, being responsible for up to 72% of the global total methane emissions by non-anthropogenic sources. The Amazon river floodplain is one of the most extensive ar
Publicado em: 2004
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11. Imagens EOS-MODIS e LANDSAT 5 TM no estudo da dinâmica das comunidades de macrófitas na várzea amazônica / EOS-MODIS and LANDSAT 5 images for the study of macrophyte community dinamics in the Amazon varzea
Wetlands encompass about 4 to 6% of the terrestrial surface, occurring in all climates, from the tropics to the tundra, in all continents, and exhibit considerable function in the global carbon cycle, being responsible for up to 72% of the global total methane emissions by non-anthropogenic sources. The Amazon river floodplain is one of the most extensive ar
Publicado em: 2004
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12. Spectral analyses applied to the identification of optical active components at Amazon aquatic systems / Análise espectral de sistemas aquáticos da amazônia para a identificação de componentes opticamente ativos
The use of remote sensing in water quality researches is important to provide data for temporal and spatial analysis in large areas. It is necessary to increase the knowledge on water spectral properties to support a more efficient application of hyperspectral sensors. The objective of this study was the analysis of spectral data derived from using field spe
Publicado em: 2002