Eunotia itacueretabaensis sp. nov. (Bacillariophyceae, Eunotiaceae) from the Campos Gerais region, Southern Brazil
| Autor: | Bartozek, Elaine C. R., Tremarin, Priscila, Peres, Cleto K., Branco, Ciro C. Z. [UNESP] |
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| Přispěvatelé: | Univ Fed Integracao Latinoamer Unila, Acqua Diagnost Ambientais Ltda, Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2020-12-10T17:30:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-04-15 We describe a new periphytic eunotioid species, Eunotia itacueretabaensis sp. nov., found in a second order stream in Vila Velha State Park in Southern Brazil. We analyzed both size variation and external and internal morphological features under light and scanning electron microscopy. The new species is mainly characterized by large size and morphology variation, and by the presence of three slight undulations in the dorsal margin of the valve in larger individuals, while smaller ones feature a single undulation, making it distinct from other known species. Its morphology is compared with similar species, as Eunotia pectinalis and Eunotia silvae. Eunotia itacueretabaensis was found attached to submerged tree trunks and forming macroscopic colonies in a fast flow acidic stream. Besides representing a new addition to the present database of Brazilian diatom flora, our study highlights the important role of environmental conservation areas, which serve as important repositories for unexplored species. Univ Fed Integracao Latinoamer Unila, Ave Tancredo Neves 6731,Parque Tecnol Itaipu, BR-85867970 Foz Do Iguacu, PR, Brazil Acqua Diagnost Ambientais Ltda, Rua Lourenco Volpi 813,Sob 05, BR-82640440 Curitiba, Parana, Brazil Univ Estadual Paulista Julio de Mesquita Filho Un, Av Dom Antonio 2100, BR-19806900 Assis, SP, Brazil Univ Estadual Paulista Julio de Mesquita Filho Un, Av Dom Antonio 2100, BR-19806900 Assis, SP, Brazil |
| Databáze: | OpenAIRE |
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