Coscinodiscophyceae, Fragilariophyceae e Bacillariophyceae (Achnanthales) dos rios Ivaí, São João e dos Patos, bacia hidrográfica do rio Ivaí, município de Prudentópolis, PR, Brasi...

by Fernanda Ferrari, Thelma Alvim Veiga Ludwig
Published 2007-06-01

Taxonomic studies of centric diatoms (Diatomeae): unusual nanoplanktonic forms and new records for Brazil

by Kaoli Pereira Cavalcante, Priscila Izabel Tremarin, Thelma Alvim Veiga Ludwig
Published 2013-06-01

Eunotia Ehrenberg (Bacillariophyceae) do rio Guaraguaçu, litoral do Paraná, Brasil Eunotia Ehrenberg (Bacillariophyceae) of Guaraguaçu river, littoral of Paraná State, Brazil

by Priscila Izabel Tremarin, Thelma Alvim Veiga Ludwig, Hermes Moreira Filho
Published 2008-09-01

Pinnulariaceae (Bacillariophyceae) do rio Guaraguaçu, bacia hidrográfica litorânea paranaense, Brasil Pinnulariaceae (Bacillariophyceae) of the Guaraguaçu River, a coastal watershe...

by Priscila Izabel Tremarin, Hermes Moreira-Filho, Thelma Alvim Veiga Ludwig
Published 2010-06-01

Thalassiosirales (Diatomeae) do rio Guaraguaçu, Bacia Litorânea, PR, Brasil Thalassiosirales (Diatomeae) of the Guaraguaçu river, littoral basin, Paraná State, Brazil

by Priscila Izabel Tremarin, Thelma Alvim Veiga Ludwig, Hermes Moreira Filho
Published 2008-12-01

Diatomáceas perifíticas em Polygonum hydropiperoides Michaux, reservatório do Passaúna, Região Metropolitana de Curitiba, Paraná, Brasil Periphytic diatoms on Polygonum hydropipero...

by Lucielle Merlym Bertolli, Priscila Izabel Tremarin, Thelma Alvim Veiga Ludwig
Published 2010-12-01

Eunotiaceae (Bacillariophyceae) em igarapés da Amazônia Central, Manaus e Presidente Figueiredo, Brasil Eunotiaceae (Bacillariophyceae) from central Amazon rivers, Manaus and Presi...

by Fernanda Ferrari, Letícia Knechtel Procopiak, Yamile Benaion Alencar, Thelma Alvim Veiga Ludwig
Published 2007-01-01

Diatomáceas perifíticas em um sistema eutrófico brasileiro (Reservatório do Iraí, estado do Paraná) Periphytic diatoms in a Brazilian eutrophic system (Iraí reservoir, Paraná state...

by Angela Maria da Silva, Thelma Alvim Veiga Ludwig, Priscila Izabel Tremarin, Ilka Schincariol Vercellino
Published 2010-12-01

Typification and taxonomic status re-evaluation of 15 taxon names within the species complex Cymbella affinis/tumidula/turgidula (Cymbellaceae, Bacillariophyta)

by Weliton José da Silva, Regine Jahn, Thelma Alvim Veiga Ludwig, Friedel Hinz, Mariângela Menezes
Published 2015-07-01

Diatom assemblages (Bacillariophyta) in six tropical reservoirs from southeast Brazil: species composition and spatial and temporal variation patterns

by Gisele Carolina Marquardt, Carlos Eduardo de Mattos Bicudo, Thelma Alvim Veiga Ludwig, Luc Ector, Carlos E. Wetzel
Published 2018-11-01

Coscinodiscophyceae and Fragilariophyceae (Diatomeae) in the Iguaçu River, Paraná, Brazil

by Margaret Seghetto Nardelli, Norma Catarina Bueno, Thelma Alvim Veiga Ludwig, Priscila Izabel Tremarin, Elaine Cristina Rodrigues Bartozek
Published 2014-03-01

Diatoms (Bacillariophyceae) of Iguaçu National Park, Foz do Iguaçu, Brazil

by Elaine Cristina Rodrigues Bartozek, Norma Catarina Bueno, Thelma Alvim Veiga Ludwig, Priscila Izabel Tremarin, Margaret Seghetto Nardelli, Angélica Cristina Righetti da Rocha
Published 2013-03-01