Hermes Moreira Filho

Eunotia Ehrenberg (Bacillariophyceae) do rio Guaraguaçu, litoral do Paraná, Brasil

The survey is a inventory floristic of Eunotiaceae family from Guaraguacu river, one of the important lotic ecosystems of Litoranea watershed, State of Parana, South Brazil. Samples were collected on April and October of 2003 from plankton and periphyton at six localities along the river. Forty species were identified and 16 taxa were registered for first time to State of Parana: Eunotia anamargaritae,E. auriculata, E. batavica, E. convexa var. convexa f. impressa, E. dacostae,E. denticulata,E. fallax var. groenlandica, E. herzogii,E. meridiana, E. muscicola var. tridentula,E. nymanniana, E. pseudoindica, E. trinacria, Eunotia sp. 2, Eunotia sp. 3 and Eunotia sp. 4.

Thalassiosirales (Diatomeae) do rio Guaraguaçu, Bacia Litorânea, PR, Brasil

The floristic inventory of Thalassiosirales from Guaraguacu river was based on planktonic and periphytic samples collected at six sampling stations throughout the river, considering a salinity gradient. A total of 28 species were identified with 19 included in Thalassiosiraceae family. Among the diatoms recorded, 85,7% were marine/estuarine and 14,3% were continental species. Cyclotella atomus Hustedt, C. choctawhatcheeana Prasad, Thalassiocyclus lucens (Hustedt) Hakansson & Mahood, Thalassiosira minima Gaarder, T. prochkinae Makarova, T. pseudonana Hasle & Heimdal, T. tealata Takano, T. tenera Proschkina-Lavrenko and Thalassiosira sp. were the nine new records for the State of the Parana. Identification keys, taxonomic descriptions, measurements, MO and MEV illustrations complement the study.

Diatomáceas (Chrysophyta, Bacillariophyceae) marinhas e estuarinas no canal de Galheta, Baía de Paranaguá, Paraná, Brasil

Diatomaceas (Chrysophyta, Bacillariophyceae) marinhas e estuarinas no canal de Galheta, Baia de Paranagua, Parana, Brasil

Estudo do microfitoplancton na região da ponta de Guaratiba a Cabo Frio (Estado do Rio de Janeiro, Brasil)

Estudo do microfitoplancton na regiao da ponta de Guaratiba a Cabo Frio (Estado do Rio de Janeiro, Brasil)