Eunotia (Bacillariophyceae) from a subtropical stream adjacent to Iguacu National Park, Brazil, with the proposition of a new species

Eunotia species from a stream located in the surrounding area of the Iguacu National Park conservation unit were analyzed. Samples were monthly collected from September 2012 to August 2013. The periphytic material, manually obtained by squeezing aquatic macrophytes, was oxidized and analyzed under light and scanning electron microscopy. Twenty-one infrageneric taxa of Eunotia were identified, measured, and illustrated. Eunotia caniculoides sp. nov. is proposed as a new species, and eight taxa are new records for Parana state.

Automated summary

This study analyzed Eunotia species from a stream in the surrounding area of the Iguacu National Park conservation unit, identifying a new species and eight new records for the state of Parana. The samples were collected monthly from September 2012 to August 2013 and analyzed using light and scanning electron microscopy, resulting in detailed measurements and illustrations of 21 infrageneric taxa of Eunotia.