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Zooplankton composition in five oxbow lakes from the Upper Juruá River, Acre St...
Dos Santos, Maria José Alencar; Keppeler, Erlei Cassiano; Vieira, Lisandro Juno Soares; Serra, Alzenira Jacob; Ferraudo, Antonio Sergio [UNESP]Made available in DSpace on 2022-04-29T09:23:50Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-11-01; This work was conducted in five oxbow lakes located between Cruzeiro do Sul and Rodrigues Alves counties (Acre State, Brazil), to provide additional information about the composition of zooplankton assemblages in the Upper Juruá River. Samples were collected from May 2009 to May 2010, and fixed with 4% ...
Temporal variation in the water quality of ponds and effluent of grow-out ponds...
Keppeler, Erlei Cassiano; Moraes Valenti, Patrícia Maria Contente [UNESP]; Pereira, Leonardo VazMade available in DSpace on 2022-04-29T07:25:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-12-01; This study was conducted in the Crustacean Sector of the Aquaculture Center (CAUNESP) at the São Paulo State University, Jaboticabal (21°15'22S and 48°18'48W) São Paulo, Brazil, from December 2003 to May 2004. The aim was to examine the water quality parameters of importance to freshwater prawn culture,...
Seasonal fluctuations of rotifera in a tropical lake inamazonia (Acre river flo...
Keppeler, Erlei Cassiano; Serra, Alzenira Jacob; Vieira, Lisandro Juno Soares; De Oliveira Pereira, Jardely; Da Silva, Maralina TorresMade available in DSpace on 2022-05-01T00:16:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-12-01; Background: The tropics are centers of high biodiversity of Rotifera that are highly variable and abundant. They play a key role since they are a link in the interaction network with members of other communities. Temporal changes in the community structure of the Rotifera assemblage is related to hydrol...
Epidemic and Endemic Malaria Transmission Related to Fish Farming Ponds in the ...
Reis, Izabel Cristina dos; Honório, Nildimar Alves; Barros, Fábio Saito Monteiro de; Barcellos, Christovam de Castro; Kitron, UrielFundação Oswaldo Cruz. Presidência. Programa de Computação Científica. Rio de Janeiro, RJ, Brasil / Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Hematozoários. Rio de Janeiro, RJ, Brasil.; Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Hematozoários. Rio de Janeiro, RJ, Brasil / Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Núcleo Operacional Se...
Abundance of zooplankton from different zones (pelagic and littoral) and time p...
Keppeler, Erlei CassianoSubmitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:20:41Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:29:22Z : No. of bitstreams: 1 2-s2.0-23444458561.pdf: 611663 bytes, checksum: 246963261988fdf159f6fd93e91f07aa (MD5); Made available in DSpace on 2014-05-27T11:20:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2003-07-01; The abundance of zooplankton in two...
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Keppeler, Erlei CassianoWater transparency of Macrobrachium amazonicum ponds under different feeding regimens and selective harvests. In aquaculture systems, water transparency is affected by water supply, feeding rate and fertilization. A study was conducted from December 19, 2003 to May 12, 2004 for a period of approximately 120 days. Twelve 0.01ha earthen ponds were used with 1m deep water. Prawns were fed commercial diet at a rate...
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Keppeler, Erlei CassianoCorrelation among water quality parameters of grow-out ponds of Macrobrachium amazonicum. Pond water quality is basic for the success of aquaculture, especially in ponds containing freshwater prawns. The variables considered most important are the dissolved oxygen and the ammonia-nitrogen. Twelve 0.01ha earthen ponds were stocked with 20 juveniles.m-2. Prawns were fed on commercial diet at a rate of 7 to 9% of ...
Keratella lenzi (Hauer, 1953): a new occurrence for Acre State, Brazil, specifi...
Keppeler, Erlei Cassiano; Silva, Enevaldo Souza da; Souza, Rodrigo Medeiros de; Oliveira, Erisson Alencar de; Souza, Andrealis Santos deKeratella lenzi (Hauer, 1953): uma nova ocorrência no estado do Acre, Brasil, especificamente no Igarapé Jesumira localizado no Parque Nacional da Serra do Divisor. Rotíferos são importantes componentes do plâncton de águas continentais e, ocupam o nicho ecológico de pequenos filtradores. A ampla distribuição deste grupo em planícies de inundação deve-se ao fato de sua tolerância às mudanças ambientais, causada...
Toxicity of sodium chloride and methyl parathion on the macrophyte Lemna minor ...
Keppeler, Erlei CassianoDuckweed, Lemna minor L., is a suitable plant model for toxicity evaluation of many contaminants due to its small size and rapid growth. Methyl parathion is a toxic compound which is utilized to eliminate aquatic insect larvae, among other purposes. Its toxicity was evaluated with the use of L. minor in this study. Methyl parathion was added to Hoagland’s nutrient medium at concentrations of 0, 8, 16, 22, 28 an...
Abundance of zooplankton from different zones (pelagic and littoral) and time p...
Keppeler, Erlei CassianoThe abundance of zooplankton in two lakes of Southwest Amazonia was studied for 10 months in different regions and at different periods of the day. The lakes were Lago Amapá, located at 10°02'36''S, 67°50'24''W, and Lago Pirapora, at 9°27'21"S, 67°31'39". Both lakes are characterized as oxbow lakes. The aim of this study was to compare the pelagic and littoral regions, as well as to determine differences in the...