Results 21 to 30 of about 307 (145)

Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters [PDF]

Acta Limnologica Brasiliensia, 2017
Aim: In this research, we investigated the spectral variability of the specific phytoplankton absorption coefficient, a*φ, measured in a tropical meso-to-hypertrophic reservoir, aiming to find spectral features associated with the chlorophyll-a (chla ...
Fernanda Sayuri Yoshino Watanabe, Enner Herenio de Alcântara, Thanan Walesza Pequeno Rodrigues, Nariane Marselhe Ribeiro Bernardo, Luiz Henrique da Silva Rotta, Nilton Nobuhiro Imai   +5 more
doaj   +2 more sources

Rare desmids (Streptophyta, Conjugatophyceae) from waterbodies of the National Park «Valdaiskiy» (Novgorod Region, Russia)

Novosti sistematiki nizshikh rastenii, 2016
In the summer 2013, two rare freshwater desmids, Sphaerozosma laeve and Actinotaenium tessellatum (Streptophyta, Conjugatophyceae), were found in the National Park «Valdaiskiy» (Novgorod Region, Russia). The former species was collected in the plankton of the lake «Pestovo» (57°43ʹ46.6ʺ N, 32°57ʹ55.0ʺ E), the latter one was found on the shore of the ...
A. F. Luknitskaya
core   +2 more sources

Induction of sexual reproduction and zygospore patterns in the filamentous green alga Spirogyra (Conjugatophyceae: Zygnematales)

Journal of BioScience and Biotechnology, 2017
Morphotaxonomy, ecological preferences and biological characterization of algal taxa of order Zygnematales (Conjugatophyceae, Chlorophyta), mainly the freshwater species Spirogyra, Zygnema, and Mougeotia are still poorly understood and need further in ...
Mostafa El-Sheekh, Michael Schagerl, Mohamed Gharieb, Ghada Abou Elsoud   +3 more
doaj   +2 more sources

Examination of the Cell Wall of Micrasterias Radiosa Var radiosa (Conjugatophyceae) by Transmission and Scanning Electron Microscopy [PDF]

, 1996
The cell wall of Micrasterias radiosa var. radiosa Ralfs 1848 (Conjugatophyceae) was examined by transmission and scanning electron microscopy. Previous electron microscopy of this taxon has not been performed; thus these are new observations.
Akin, Jennifer A., Meyer, Richard L.
core   +3 more sources

Inferring phytoplankton community composition with a fatty acid mixing model

Ecosphere, Volume 6, Issue 1, Page 1-18, January 2015., 2015
The taxon specificity of fatty acid composition in algal classes suggests that fatty acids could be used as chemotaxonomic markers for phytoplankton composition. The applicability of phospholipid‐derived fatty acids as chemotaxonomic markers for phytoplankton composition was evaluated by using a Bayesian fatty acid‐based mixing model.
U. Strandberg, S. J. Taipale, M. Hiltunen, A. W. E. Galloway, M. T. Brett, P. Kankaala   +5 more
wiley   +1 more source

Ecosystems of artificial saline lakes. A case of Lake Magic in Wadi El-Rayan depression (Egypt)

Knowledge and Management of Aquatic Ecosystems, 2020
The Wadi El-Rayan is a depression in the Fayoum oasis collecting agricultural drainage water from the Fayoum. Since 1973, this drainage water formed two man-made lakes. Twenty years ago, a third lake, called Lake Magic was formed. Since this newly formed
Anufriieva Elena V., Goher Mohamed E., Hussian Abd Ellatif M., El-Sayed Seilem M., Hegab Mahmoud H., Tahoun Usama M., Shadrin Nickolai V.   +6 more
doaj   +1 more source

Desmid algae (Charophyta: Conjugatophyceae) of Ekaterinburg, Middle Urals, Russia

Folia Cryptogamica Estonica, 2018
Species composition of desmid algae and their habitat preferences in water bodies of Ekaterinburg city were studied during the 2013–2017. Thirty-seven species and subspecific taxa which belong to 12 genera and 2 families were identified, of which 17 species are new for the eastern macroslope of the Middle Urals.
Shakhmatov, A. S., Pavlovskiy, E. V., Paukov, A. G.   +2 more
openaire   +3 more sources

Seasonal influence of physicochemical parameters on phytoplankton diversity and assemblage pattern in Kailash Khal, a tropical wetland, Sundarbans, India

Applied Water Science, 2019
Studies were carried out from April 2016 to March 2017 for effective understanding of diversity combined with environment-influenced spatiotemporal dynamics of microfloral structure in Kailash Khal wetland of Indian Sundarbans.
Pranab Gogoi, Archana Sinha, Soma Das Sarkar, Thangjam Nirupada Chanu, Anil Kumar Yadav, Satish Kumar Koushlesh, Simanku Borah, Sanjoy Kumar Das, Basanta Kumar Das   +8 more
doaj   +1 more source

Influence des paramètres physico-chimiques sur la structure et la dynamique des Chlorophyta dans les eaux du haut-Bandama (Côte d’Ivoire)

Revue Congolaise des Sciences et Technologies
Le phylum des Chlorophyta se distinguent des autres phylums phytoplanctoniques par leur écologie et leur caractéristique biochimique. En raison de leurs importances en écologie aquatique, il est paru important d’examiner l'influence des principaux ...
Ali Tieligounon Soro, Romé N’Guessano lozo, Touplé Sibiri Kone, Delphine Adandedjan, Gouli Goore Bi   +4 more
doaj   +1 more source

Gêneros Euastrum Ehrenberg ex Ralfs e Micrasterias C. Agardh (Conjugatophyceae-Desmidiaceae) de dois ambientes amazônicos de águas pretas (Manaus, Amazonas-Brasil) Genera Euastrum Ehrenberg ex Ralfs and Micrasterias C.Agardh (Conjugatophyceae-Desmidiaceae) from two Amazon black water environments (Manaus,Amazonas-Brazil)

Acta Amazonica, 2009
Foi realizado um inventário das espécies dos gêneros Euastrum Ehrenberg ex Ralfs e Micrasterias C.Agardh de dois ambientes de águas pretas do município de Manaus, um lago de inundação (lago Tupé), e o rio Negro.
Sérgio Melo, Karla F. Souza, Sérgio R.M. Rebelo, Maria da Graça Sophia   +3 more
doaj   +1 more source