Diatomáceas de lagos rasos do pantanal da nhecolândia, área úmida Brasileira
Carregando...
Arquivos
Data
2012-12-01
Autores
Santos, Kleber Renan de Souza
da Rocha, Angélica Cristina Righetti [UNESP]
Sant'Anna, Célia Leite
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
The diatom flora of the shallow lakes in the Pantanal of Nhecolândia is poorly known. Thus, our aim was to know the diatom biodiversity in three types of shallow lakes called baías, salitradas and salinas, characterized by differences in pH, electrical conductivity, contact with the coalescent system and the presence of macrophytes. The samples were collected in dry and rainy seasons, from 2004 to 2007. For taxonomic identification, the material was cleaned with H2O2 and analyzed using light microscopy. A total of 23 diatom species were identified and each lake presented a unique species richness and composition. The greatest species richness was found in the Baía da Sede Nhumirim (21 species), followed by the Salitrada Campo Dora (8 species) and finally the lowest species richness was observed in the Salina do Meio (3 species). Only Anomoeoneis sphaerophora Pfitzer var. sphaerophora and Craticula cf. buderi (Hustedt) Lange-Bertalot occurred in the three studied systems. Except for Eunotia binularis (Ehrenberg) Souza and Aulacoseira ambigua (Grunow) Simonsen, all the others are new records to the Brazilian Pantanal.
Descrição
Palavras-chave
Biodiversity, Brackish water, Freshwater, Tropical wetland
Como citar
Oecologia Australis, v. 16, n. 4, p. 756-769, 2012.