%0 Journal Article
%T Composi£¿£¿o de algas perif¨ªticas (exceto Bacillariophyceae) em distintos substratos naturais de um ambiente semil¨®tico, plan¨ªcie de inunda£¿£¿o do Alto Rio Paran¨¢, Brasil
%A Biolo
%A Stefania
%A Rodrigues
%A Liliana
%J Brazilian Journal of Botany
%D 2011
%I Scientific Electronic Library Online
%R 10.1590/S0100-84042011000300006
%X the purpose of this study was the taxonomy of dominant periphytic algae (except bacillariophyceae) of three natural substrates, eichhornia azurea kunth, nymphaea amazonum mart. & zucc. and oxycaryum cubense (poepp. & kunth) lye in a semi-lotic environment (the pau v¨¦io backwater) at the paran¨¢ river floodplain. only those taxa with a frequency of occurrence over 75% of all samples were considered, except diatoms. thirty-one taxa were illustrated, measured and identified at species level, a total of 31 taxa were described, distributed in classes: chlorophyceae (3), cryptophyceae (1), cyanobacteria (14 taxa), zygnemaphyceae (7), euglenophyceae (2) and xanthophyceae (4). twenty-three taxa are first taxonomic reports for the upper paran¨¢ river floodplain: chamaesiphon investiens skuja, geitleribactron subaequale (geitler) kom¨¢rek, chroococcus limneticus lemmerm., c. minimus (keissler) lemmerm., c. minor (k¨¹tz.) n£¿geli, aphanothece microscopica n£¿geli, phormidium molle (k¨¹tz.) gomont, leptolyngbya angustissima (west & g.s. west) anagn. & kom¨¢rek, l. foveolarum (rabenhorst ex gomont) anagn. & kom¨¢rek and pseudanabaena frigida (fritsch) anagn. (cyanobacteria); characium ensiforme hermann, c. ornithocephalum a. braun and desmodesmus brasiliensis (bohlin) e. hegewald (chlorophyceae); cosmarium abbreviatum racib., c. bireme nordst., c. pseudopyramidatum lundell, c. subadoxum gr£¿nblad, c. trilobulatum reinsch, gonatozygon pilosum wolle and staurastrum forficulatum lundell (zygnemaphyceae); trachelomonas hispida (perty) stein emend. deflandre (euglenophyceae); cryptomonas tenuis pascher (cryptophyceae) and characiopsis sphagnicola pascher (xanthophyceae).
%K connected pond
%K floodplain
%K periphyton
%K taxonomy.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-84042011000300006&lng=en&nrm=iso&tlng=en