ABSTRACT
The aim of this study was the taxonomic analysis of microalgae from the genusTrachelomonas (Euglenophyceae) in the Environmental Protection Area (APA) of the Ibirapuitã River, located on the southwest border of Rio Grande do Sul State. We sampled 10 stations in lotic and lentic environments, between 2011 and 2013. The 34 samples, resulting from sampling, were collected with a plankton net (30 µm), and preserved with 4% formalin. Nine taxa are new records for Rio Grande do Sul State, found in only three of the 10 stations sampled. Among these, Trachelomonas bernardii Wolosz. f. major Defl., T. caudata Defl. f. pseudocaudata (Defl.) Pop., T. hirta Cunha var. hirta, and T. torosa (Bal.) Tell & Conf. are first reports for the country.
Keywords:
Loricate Euglenophyceae; southwest of Rio Grande do Sul State; southern Brazil
