Results 21 to 30 of about 183 (164)

Desmidiaceae (exceto Cosmarium) de um tributário do reservatório de Itaipu, Paraná, Brasil

open access: yesHoehnea
Levantamento florístico das Desmidiaceae (exceto Cosmarium) de um tributário do Reservatório de Itaipu. Realizou-se análise qualitativa de 60 amostras, coletadas no período de julho de 2003 a junho de 2004. Quarenta e uma espécies, dez variedades que não
Stefania Biolo   +2 more
doaj   +1 more source

Novas ocorrências de desmídias filamentosas (Desmidiaceae, Zygnematophyceae) para o estado da Bahia, Brasil New records of filamentous desmids (Desmidiaceae, Zygnematophyceae) from Bahia state, Brazil

open access: yesActa Botânica Brasílica, 2010
As desmídias de hábito filamentos são constituídas por filamentos de células relativamente curtos, que se dissociam com certa facilidade. O conhecimento destas algas no estado da Bahia é bastante escasso, até o momento, estando restrito a 13 táxons.
Ivania Batista de Oliveira   +2 more
doaj   +1 more source

Periphytic Cosmarium (Zygnematophyceae, Desmidiaceae) in lentic environments of the Upper Paraná River floodplain: Taxonomy and ecological aspects

open access: yesActa Limnologica Brasiliensia, 2018
Aim A taxonomic study of the species of the genus Cosmarium Corda ex Ralfs (Desmidiaceae) was conducted in two lentic environments of the Upper Paraná River Floodplain (Garças and Patos lakes). Methods The samples were collected in November 2016.
Nicolli Cristina Osório   +7 more
doaj   +1 more source

Use of eDNA and conventional sampling methods to survey rock pool (gnamma) biodiversity on granite inselbergs

open access: yesAustral Ecology, Volume 49, Issue 8, August 2024.
Environmental DNA sampling coupled with high‐throughput sequencing is increasingly recognized as a useful method for assessing biodiversity with potential applications in terrestrial environments. Rock pools on granite inselbergs support diverse aquatic communities, yet the application of eDNA to document their biodiversity is lacking.
Damian R. Michael   +7 more
wiley   +1 more source

Os gêneros Staurastrum, Staurodesmus e Xanthidium (Desmidiaceae, Zygnemaphyceae) da Lagoa do Caçó, Estado do Maranhão, Nordeste do Brasil

open access: yesHoehnea
Este trabalho é uma contribuição ao conhecimento da biodiversidade das desmidiáceas da região Nordeste do Brasil, cujas informações são ainda escassas. As coletas foram realizadas em oito estações de amostragem, seguindo um transecto no eixo mais longo ...
Maria José Dellamano-Oliveira   +3 more
doaj   +1 more source

SEM study of planktonic chlorophytes from the aquatic habitat of the Indian Sundarbans and their conservation status

open access: yesJournal of Threatened Taxa, 2019
Scanning electron microscopy (SEM) is the most modern technique for plankton research.  The present paper deals with the taxonomy and morphology of some rare and endangered planktonic chlorophytes in relation to scanning electron microscopy.
Gour Gopal Satpati, Ruma Pal
doaj   +1 more source

Primeros registros de Micrasterias (Desmidiaceae) en lagos del río Amazonas de Colombia

open access: yesCaldasia, 1993
Se registran Micrasterias rotata var. rotata, M. mahabuleshwarensis y M. radiosa var. ornata para la Isla Ronda, Leticia; M. truncara varopusilla para el lago Yahuarcaca, Leticia y el lago Pan de la isla Macagua y M. laticeps var.
Duque Escobar Santiago   +1 more
doaj  

Periphytic desmids in Corumbá Reservoir, Goiás, Brazil: genus Cosmarium Corda

open access: yesBrazilian Journal of Biology
With the objective of investigating the taxa of Cosmarium, four collection stations along the Corumbá Reservoir were set up. This resulted in the first work done on the genus in the State of Goiás.
S. A. Felisberto, L. Rodrigues
doaj   +1 more source

Desmids (Desmidiaceae, Zygnematophyceae) with cylindrical morphologies in the coastal plains of northern Bahia, Brazil

open access: yesActa Botânica Brasílica, 2014
Our knowledge of desmids with cylindrical morphologies in the state of Bahia, Brazil, is quite limited, only 13 such taxa having been described to date.
Ivania Batista de Oliveira   +2 more
doaj   +1 more source

Euastrum and Micrasterias (family Desmidiaceae) in lentic tropical ecosystem, Brazil [PDF]

open access: yesBiota Neotropica, 2015
This study aimed to perform the taxonomic survey of Euastrum and Micrasterias in a lentic tropical environment, seeking to contribute to the knowledge on biodiversity and geographical distribution of the Zygnemaphyceae. Conducted at the Samambaia Reservoir, ten samples were collected in the dry season (24/09/10 and 04/11/10) and ten in the rainy season
Silva, Francielle Karla Lopes da   +1 more
openaire   +3 more sources

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