Respuesta del perifiton de agua dulce al glifosato grado-técnico y dos formulados comerciales [PDF]
El glifosato es el herbicida más utilizado a nivel mundial. Puede llegar a los cuerpos de agua y afectar a las comunidades microbianas. Comparamos los efectos del glifosato grado técnico y dos formulados comerciales sobre una comunidad periférica de agua
Gonzalez, Daniela +4 more
core +1 more source
Simonsenia aveniformis sp nov (Bacillariophyceae), molecular phylogeny and systematics of the genus, and a new type of canal raphe system [PDF]
The genus Simonsenia is reviewed and S. aveniformis described as new for science by light and electron microscopy. The new species originated from estuarine environments in southern Iberia (Atlantic coast) and was isolated into culture. In LM, Simonsenia
A Gomes +41 more
core +1 more source
Primer registro de Thalassiosira catharinensis (Bacillariophyta) en aguas costeras marinas argentinas [PDF]
Several ultrastructural analyses of taxa belonging to the genus Thalassiosira from Argentinean coastal waters were carried out, nevertheless, the smaller fraction of the nanoplanktonic Thalassiosira was frequently overlooked.
Lavigne, Andrea Susana +2 more
core +2 more sources
European diatoms in freshwater habitats near Arctowski Station, King George Island, maritime Antarctica [PDF]
Diatom assemblages collected from ponds and pools surrounding Arctowski Station (King George Island, South Shetland Islands) have been investigated. The study focused on two groups of samples: archival samples collected in the 1990s and contemporary ...
Natalia Kochman-Kędziora +3 more
doaj +1 more source
Análisis de los materiales tipo de Pleurosigma formosum y P. decorum (Pleurosigmataceae, Bacillariophyta) [PDF]
Los materiales tipo de Pleurosigma formosum W. Smith y P. decorum W. Smith fueron examinados. Ambas especies fueron separadas hasta ahora por el rango de tamaño, la forma de la valva y la densidad de las estrías sobre la base de su análisis con ...
Sar, Eugenia Alicia +2 more
core +2 more sources
The diatom Encyonema nevadense S.Blanco & al. sp. nov. is described as a new species, from epilithic samples collected from a high mountain pond in Sierra Nevada National Park.
Saúl Blanco +3 more
doaj +1 more source
Diatoms from small ponds and terrestrial habitats in Deserta Grande Island (Madeira Archipelago) [PDF]
Freshwater diversity from Desertas islands (Madeira archipelago, Portugal) is poorly known, although the islands are protected and became a Natural Reserve in 1995.
Vítor Gonçalves +4 more
doaj +3 more sources
Poucos estudos tem abordado a flora de diatomáceas de sistemas oligotróficos do Brasil. São apresentados os resultados da composição taxonômica e distribuição espacial e temporal de diatomáceas no rio do Salto, situado no Parque Estadual do Ibitipoca ...
Luís Gustavo de Castro Canani +2 more
doaj +1 more source
On the identity of the rare Fragilaria subconstricta (Fragilariaceae), with Fragilaria species forming ribbon-like colonies shortly reconsidered [PDF]
Background and aims – During phytoplankton surveys of a freshwater pond in Northeastern France, Fragilaria subconstricta (Bacillariophyceae) was observed.
David Heudre +4 more
doaj +3 more sources
Antagonistic and synergistic responses to solar ultraviolet radiation and increased temperature of phytoplankton from cenotes (sink holes) of the Yucatán Peninsula, México [PDF]
Cenotes (sink holes) are karstic formations characteristic of the Yucatán Peninsula and are the main source of fresh water in the region. Because of their tropical location, they receive high levels of solar radiation and are exposed to high temperatures.
Banaszak, Anastazia T. +5 more
core +1 more source

