Periphytic and planktonic algae records from the upper Paraná river floodplain, Brazil: an update

Abstract

The upper Paraná river floodplain is a strategic area for the Brazilian biological and environmental patrimony and contains several conservation units. We aimed to record the occurrence and the geographic distribution of microalgae in this floodplain during 30 years of research carried out by the Center for Research in Limnology, Ichthyology and Aquaculture - State University of Maringá. We consulted 80 publications (national and international journals and books published from 1986 to 2016). We considered only published works that referenced algae at the generic and infrageneric levels. The results indicated 938 species of algae (562 periphytic, 482 planktonic), which 103 co-occur in the two habitats. Cosmarium was the richest genera for periphyton and Traquelomonas for phytoplankton. This study increased the knowledge of microalgae biodiversity in Brazil and provided data for future ecological and biogeographic studies.

Beta diversity of freshwater algal communities: Influence of different dispersal mechanisms

“…Dispersal of these algal groups can also be in uenced by proximity to the river, leading to shortdistance dispersal. Thus, we believe that the algal communities carried by the wind are mainly of local origin, as the presence of most of the taxa found in this study was reported in other studies carried out in the Paraná River oodplain (Moresco et al 2017;Dunck et al al. 2018;Lansac-Tôha et al 2019;Silva et al 2022).…”

Sediment diatoms from Upper Paraná River floodplain lakes

“…All species were represented on photo boards. New records for Upper Paraná River were identified based on recent works of Dunck et al (2018), Osório et al (2017), and . Descriptions, relevant taxonomical and ecological comments were provided for new records, conferatur taxa, and taxa identified until the genus level.…”

Acarlar Longozu’ndan Türkiye Tatlı Su Alg Florası İçin Üç Yeni Euglenozoa Kaydı

“…It has been reported that Phacus gigas is predominantly found in mesosaprobic environments. The species is rarely found in Poland, but it has a cosmopolitan distribution in Brazil (Cunha, 1913;Dreżepolski, 1922;Dunck et al, 2018). It has also been recorded from many rivers such as the Cértima River, Vagua River, Levira River, Segadães, and Frossos channels in Portugal (Pereira and Azeiteiro, 2003).…”