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BRANCO,LUIS HENRIQUE Z.; NECCHI JÚNIOR,ORLANDO; BRANCO,CIRO CESAR Z.. |
A hundred seventy two stream reaches from six distinct natural regions (parts of biomes or geological areas) in São Paulo State (Atlantic Rainforest, Cerrado, Hard Water regions, Northwest region, Subtropical Rainforest, and Tropical Rainforest) were searched for the most representative macroscopic Cyanophyceae of phytobenthic communities. Selected ecological parameters were analyzed in each stream segment: conductance, current velocity, oxygen saturation, pH, turbidity, and water temperature. Algal abundance was evaluated as percentage cover. Thirthy four cyanophyte taxa were identified and Phormidium retzii was the most widespread species throughout the State, occurring in all studied regions, except in hard water areas, and was negatively correlated to... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cyanophyceae; Ecological distribution; Conductance; Streams; Brazil. |
Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000100011 |
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Campos,Irani F.P; Senna,Pedro A.C. |
A Lagoa Bonita situa-se na região nordeste do Distrito Federal, com um espelho d'água de aproximadamente 120ha. Do estudo pormenorizado de 101 amostras coletadas durante 13 meses, de janeiro de 1984 a janeiro de 1985, foram identificadas 21 espécies de algas nostocofíceas, representando as cinco famílias seguintes: Chroococcaceae, Stigonemataceae, Scytonemataceae, Rivulariaceae e Nostoccaceae. Destas espécies, seis são citadas pela primeira vez para o Brasil e 12 para o Distrito Federal. A família mais bem representada foi Chroococcaceae com 16 espécies. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nostocophyceae; Cyanophyceae; Lagoa Bonita; Distrito Federal. |
Ano: 1988 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061988000100002 |
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