Zooplanktonic Community
Mostrando 1-7 de 7 artigos, teses e dissertações.
-
1. Evaluation of environmental effects of uranium mining\ s radioactive effluents on physical and chemical characteristics and diversity of the Zooplanktonic Community in the Ore Treatment Unit, Antas Dam and Bortolan Dam, Poços de Caldas (MG). / Avaliação de efeitos ambientais de efluentes radioativos de mineração de urânio sobre as características físicas, químicas e diversidade da Comunidade Zooplanctônica na Unidade de Tratamento de Minérios, Represa das Antas e Represa Bortolan, Poços de Caldas (M.G).
A represa das Antas e represa Bortolan fazem parte da Sub-Bacia Hidrográfica do Ribeirão das Antas, sendo que a primeira sofre impacto de uma mineradora de urânio (UTM/INB), uma vez que recebe despejos de efluentes radioativos tratados procedentes de DAM, já a represa Bortolan recebe maior influência da malha urbana de Poços de Caldas. O objetivo do pr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/12/2010
-
2. El zooplancton de un lago somero hipereutrófico de la región central de Argentina: cambios después de una década
The water bodies ecology is influenced by the contributions of nutrients from the basin. The shallow lentic ecosystems generally presents high levels of eutrophy, which allows to sustain a highly productive zooplanktonic fauna. According to the model of the alternative states of shallow lakes, zooplankton of these environments is characterized by a taxonomic
Biota Neotropica. Publicado em: 2008-12
-
3. Contribution to limnological knowledge of brazilian semi-arid reservoir that supply Fortalezas metropolitan region: Pacajus and Gavião dams (Ceará, Brazil) / Contribuição ao conhecimento limnológico de reservatórios do semi-árido brasileiro que abastecem a região metropolitana de Fortaleza: Açudes Pacajus e Gavião (Ceará, Brasil)
The main aim of this research was to investigate the influence of climatic and hydrodynamicsalterations about physical stability, resources availability, zooplankton community structure and spatial heterogeneity standard of Pacajus and Gavião dams, collected at two-month period between Nov. 1988 and Dec. 1998. In the reservoirs, the sample stations were dis
Publicado em: 2007
-
4. COMUNIDADE ZOOPLANCTÔNICA DE CINCO RESERVATÓRIOS TROPICAIS DO SISTEMA FURNAS S.A. (BRASIL): ABUNDÂNCIA E BIOMASSA EM CARBONO / COMUNIDADE ZOOPLANCTÔNICA DE CINCO RESERVATÓRIOS TROPICAIS DO SISTEMA FURNAS S.A. (BRASIL): ABUNDÂNCIA E BIOMASSA EM CARBONO
Gases generation, as contributor to the greenhouse, inside reservoirs it is one of the possible impacts caused for these systems to environment. Inside reservoirs, the zooplankton community had constituted one source of carbon so that this community would be also under influence of other physical, chemical and biological factors associated with morphometric
Publicado em: 2007
-
5. Utilização de fertilizantes orgânicos para indução de alimento natural no cultivo do camarão nativo Farfantepenaeus subtilis (Pérez-Farfante, 1967).
The marine shrimp Farfantepenaeus subtilis has a high potential for the aquaculture. However there are some feeding and nutrition problems in captivity, resulting in low growth and high feed conversion ratio. This work aimed to evaluate the natural food induction in F. subtilis culture, through different fertilization regimes. Were adopted four treatments an
Publicado em: 2006
-
6. Avaliação da toxicidade de florações naturais e de cultura de cianobactérias: efeitos sobre Ceriodaphnia silvestri (Crustacea, Cladocera)
The incidence of toxic cyanobacterial blooms is one of the important consequences of eutrophication in aquatic ecosystems. It is a very common phenomenon in reservoirs and shrimp ponds in the State of Rio Grande do Norte (RN), Brazil. Cyanobacterias produce toxins which can affect aquatic organisms and men trough the food chain. Aiming to contribute to the s
Publicado em: 2006
-
7. Distribution of Cladocera (Branchiopoda) populations on medium and low Tietê river reservoirs: a spatial and temporal analysis / Distribuição das populações de Cladocera (Branchiopoda) nos reservatórios do médio e baixo Tietê: uma análise espacial e temporal
Artificial reservoirs are ecosystems with broad economic and social importance; however, they modify hydrological and ecological characteristics of the environment, interfering on the organization of biotic communities, which, in turn, play fundamental role in the transference of energy in the ecosystem. Spatial and temporal organization may occur on these e
Publicado em: 2005