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Now showing items 21-30 of 35
Sustentabilidade da pesca realizada em sistemas de lagos de várzea na Região do Aritapera do Rio Amazonas
(Universidade Federal do Oeste do Pará, 2019-02)
Fishing in the Amazon stands out in relation to the other regions of Brazil, having an artisan and subsistence character. The present paper had as objective to evaluate the fishing activity in the island lakes systems in ...
Toxonomia e distribuição espacial e temporal de Pinnalaria Ehrenberg em um lago de planície de inundação do Rio Tapajós (Santarém, Amazônia, Brasil).
(Universidade Federal do Oeste do Pará, 2018-05-30)
The aim of this work was to increase the taxonomic knowledge and the spatial and temporal distribution patterns of the genus Pinnularia in the Amazon region. The present study was carried out in Verde lake, a clear water ...
Avaliação temporal da produção de categorias de pescado protegidas pelo defeso, desembarcadas na feira do pescado – Santarém-Pará
(Universidade Federal do Oeste do Pará, 2017-05)
The fish consumption around the world have grown in the last decades in order to supply the large demands,fish production increased and the pressure on resouces increased leading to a fall in inventories.In the Amazônia,the ...
Avaliação espacial dos níveis de mercúrio total em sedimentos do reservatório da UHE de Curuá-Una, Pará, Brasil
(Universidade Federal do Oeste do Pará, 2017-06-21)
Hydroelectric uses in the Amazon promote, in most cases, the inundation of extensive forested areas, which may stimulate the mobilization of the mercury naturally present in these soils. Reservoir sediments act as mercury ...
Desmídias (Chlorophyta) de um lago de inundação de águas claras na Amazônia brasileira gêneros: Cosmarim Corda ex Ralfs e Staurastrum Meyen ex Ralfs
(Universidade Federal do Oeste do Pará, 2015-07-30)
Zygnemaphyceae, better known as demydiae, is undoubtedly the best represented group of continental algae in terms of species numbers, varieties and taxonomic forms, besides being one of the most studied algae classes in ...
Estrutura toxiconômica e funcional das assembleias de peixes na várzea do Baixo Amazonas.
(Universidade Federal do Oeste do Pará, 2019-02)
The spatial heterogeneity and seasonal dynamics of the floodplain of the Amazon River support its high fish diversity and productivity. This study investigated relationships between hydrological variations and habitat types ...
Efeito do óleo essencial de Lippia alba (Mill.) N. E. Brown, no transporte simulado de alevinos de Tambaqui (Collossoma Macropomum) na Região Oeste do Pará.
(Universidade Federal do Oeste do Pará, 2014-08-28)
The aim of the study was to evaluate the potential of the essential oil of Lippia alba as an additive in the simulated transport of tambaqui fingerlings ( Colosoma macropomum ) , noting the
survival and behavior of ...
Avaliação dos níveis de mercúrio total em músculos de peixes associados à macrófitas aquáticas do Rio Amazonas e afluentes – Amazônia, Brasil.
(Universidade Federal do Oeste do Pará, 2014-08-28)
The presence of mercury in various compartments of aquatic ecosystems is a worrying
problem. The gold mining and mercury occurring naturally in the soil are known as sources
responsible for this contamination. The mercury ...
Composição e abundância do Ictoplâncton em um lago de inundação, Baixo Amazonas, Pará.
(Universidade Federal do Oeste do Pará, 2018-07-13)
The present work aims to characterize the biological and ecological attributes of the ichthyoplankton related to the temporal distribution in Lake Maicá, Santarém, as a way to assist in the definition of best practices for ...
Aspectos ecológicos da Ictiofauna da drenagem do Rio do Sono, Bacia do Rio Tocantins, Brasil.
(Universidade Federal do Oeste do Pará, 2018-08-31)
The Sono River is a clear-water affluent of the right bank of the upper-middle Tocantins river, formed by the rivers Novo and Soninho. This work aimed to investigate the biotic or abiotic factors that may influence the ...