Estrutura e dinâmica da comunidade do protoplâncton de um córrego urbano em uma área de preservação ambiental

Detalhes bibliográficos
Ano de defesa: 2014
Autor(a) principal: Lippert, Márcio Antônio Muniz
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Tese
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Estadual de Maringá
Brasil
Departamento de Biologia
UEM
Maringá, PR
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: http://repositorio.uem.br:8080/jspui/handle/1/475
Resumo: The water quality all over the world has being intensely degraded, causing loss of aquatic biodiversity due to the physical and chemical environmental disintegration by changing the natural dynamics of biological communities. In this sense, the aim of this study was to investigate the diversity and abundance patterns of protozoan communities (testate amoebae, ciliates and flagellates) as well as the factors structuring this community in a tropical urban stream. Furthermore, we sought to characterize this limnologically stream, providing information about their water quality through evaluation of Water Quality Indices and Trophic State. The study was conducted at the Conservation Parc du Cinquantenaire, in Maringá, over six sampling points distributed equidistantly in the stream Mandacaru. The stream was categorized as mesotrophic in most locations sampled in both hydrological periods (dry and rainy seasons). Ciliates constituted the group with the highest species richness, especially in the rainy season, while the highest abundance values were obtained by flagellates, ciliates and followed by testate amoebae. Also in relation to the density of protozoa, higher values of this attribute were related to the productivity of the system, as evidenced by higher abundances associated with sampling units with high concentrations of nutrients and higher primary (chlorophyll) and bacterial productivity.