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Itens para a visualização no momento 11-20 of 50
Gastrópodes e outros invertebrados bentônicos do sedimento litorâneo e associados a macrófitas aquáticas em açudes do semi-árido paraibano, nordeste do Brasil.
(Universidade Federal de São Carlos, 2002-08-08)
The Northeastern region in Brazil is characterized by long dry seasons, and
the dams are very important to the people living in this region. In this work two
dams in the semiarid of Paraiba State were studied to evaluate ...
Estudo das interações fitoplâncton-protozooplâncton no reservatório de Barra Bonita, SP, com ênfase na toxicidade de microcistinas
(Universidade Federal de São Carlos, 2009-09-03)
The increasing eutrophication of aquatic environments, resulting from the human activities, is related to cyanobacterial blooms that are described, all over the world, as the agents causing toxicity and death in humans, ...
Cinética e variação molecular de substâncias húmicas formadas da lixiviação de macrófitas aquáticas
(Universidade Federal de São Carlos, 2015-08-13)
The humic substances (HS) are important to aquatic ecosystems. In this study we
investigated the kinetics and molecular variations of dissolved fulvic acids (FA) and
humic acids (HA) formed from aquatic macrophytes ...
Características limnológicas da bacia hidrográfica do córrego Rico, Jaboticabal, SP
(Universidade Federal de São Carlos, 2010-03-09)
Evaluation of quality and quantity of water contributes to the strategic decisionmaking policies and techniques to ensure the potential use of this resource for agriculture, industry, animal watering and for human consumption. ...
Consumo e influência de exopolissacarideos de Anabaena spiroides (Cyanophyceae) sobre a toxicidade e captura do cobre por Ceriodaphnia cornuta (Cladocera, Daphnidae).
(Universidade Federal de São Carlos, 2004-05-13)
Human specie can alter deeply and very fast the enviroment in which it is in. Because of the
industrial development, the water, air and soil contamination have become cause of
concern, chiefly in big cities with great ...
Diversidade de avifauna aquática nas represas do médio e baixo Rio Tietê (SP) e nos sistema de lagos do médio Rio Doce (MG) e sua relação com o estado trófico e a morfometria dos ecossistemas aquáticos.
(Universidade Federal de São Carlos, 2003-04-16)
Relationships between aquatic birds and the trophic state of freshwaters are not
well known in tropical systems. In the present work the influence of some limnological
variables on the structure of the aquatic bird comunnity ...
Dinâmica de populações de cianobactérias em reservatório eutrofizado no semi-árido nordestino brasileiro.
(Universidade Federal de São Carlos, 2003-03-14)
The Armando Ribeiro Gonçalves reservoir, located in the semi-arid of the Rio Grande do Norte (06o08 S ; 37o 07 W), in Northeast Brazil, represents 68% of the total surface water
accumulated in the state. The reservoir, ...
Estudo limnológico de um trecho do médio rio Madeira (região de Porto Velho - RO), com ênfase na comunidade Zooplanctônica
(Universidade Federal de São Carlos, 2011-08-29)
Madeira River is the fourth major river of the planet considering its discharge, only behind the Amazonas, Congo and Orinoco rivers. It is the main affluent contributing with half of the suspended solids transported by the ...
Degradação da glicose pelo bacterioplâncton: mineralização e formação de produtos intermediários.
(Universidade Federal de São Carlos, 2002-12-10)
This study aimed compare the bacterioplankton heterotrofic potential and the routes of glucose mineralization, and also determined some polymeric monossacharides produced by bacterioplankton. Water samples were collected ...
Bioacumulações de Cd, Ni, Pb e Zn durante os crescimentos de Salvinia minima e Lemna valdiviana
(Universidade Federal de São Carlos, 2014-07-31)
Metals are dispersed easily in environments and are bioconcentrated in tissues of many organisms causing risks to the health and stability of aquatic ecosystems even at low concentrations. The use of plants in phytoremediation ...