Results 41 to 50 of about 11,369 (239)

Ficoflora de ambientes lênticos: estudo preliminar da região de Charqueadas, Rio Grande do Sul, Brasil, com vistas à avaliação ambiental Metaphyton, benthos and phytoplantonic communities in lentic systems in the region of Charqueadas Rio Grande do Sul, Brazil

Acta Botânica Brasílica, 1987
São apresentados os resultados do estudo do metafíton, bentos e de comunidades fitoplanctônicas ocorrentes em ambientes lênticos de Charqueadas e municípios vizinhos, região esta sujeita à influência de mineração e processamento de carvão mineral.
Zulanira Meyer Rosa, Ieti Ungaretti, Lisete Maria Kremer, Sandra Maria Alves da Silva, Vera Lucia Maröstica Callegaro, Vera Regina Werner   +5 more
doaj   +1 more source

Diatom diversity and distribution in Madeira Island streams (Portugal) [PDF]

Biodiversity Data Journal, 2020
Here we present the data obtained from the samples collected in a field campaign during the spring of 2015 which aims for a better understanding of the diversity and distribution patterns of freshwater diatoms in Madeira Island.
Catarina Ritter, Pedro Raposeiro, Vítor Gonçalves   +2 more
doaj   +3 more sources

Multidimensional Insights Into the Drivers of Aquatic CO2 Dynamics: A River–Reservoir–Wetland Aquatic Continuum Study Within a Semi‐Arid Region

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Evaluating multiple competing biotic and abiotic processes and how they interact with carbon dioxide (CO2) in aquatic systems, is critical to understanding regional and global carbon cycles. Here, we used an aquatic continuum of the Bahe watershed, within a semi‐arid region, to establish a comprehensive conceptual framework for identifying CO2
Mingyu Shao, Zaihua Liu, Sibo Zeng, Hailong Sun, Haibo He, Qiang Li, Qian Bao, Liangxing Shi, Junyao Yan, Qiufang He, Yan Fang, Min Zhao   +11 more
wiley   +1 more source

On some common and new cavum-bearing Planothidium (Bacillariophyta) species from freshwater

Fottea, 2019
Thirteen Planothidium species are illustrated and discussed in a detailed morphological account based on light and scanning electron microscopy analysis of modern and historic materials related to the names Planothidium rostratum (Ostrup) Lange-Bertalot ...
C. E. Wetzel, B. Vijver, S. Blanco, L. Ector   +3 more
semanticscholar   +1 more source

The genus Tryblionella W. Smith (Bacillariaceae, Bacillariophyta) in southern Brazil salt marshes

, 2020
Tryblionella is a large epipelic genus, widespread from fresh to marine waters. Most of the studies including the genus are based only in light microscopy.
Lucielle Merlym Bertolli, D. Talgatti, T. D. S. Nascimento, L. Torgan   +3 more
semanticscholar   +1 more source

The taxonomy and diversity of Proschkinia (Bacillariophyta), a common but enigmatic genus from marine coasts.

Journal of Phycology, 2020
Detailed morphological documentation is provided for established Proschkinia taxa, including the generitype, P. bulnheimii, and P. complanata, P. complanatula, P. complanatoides and P. hyalosirella, and six new species.
So-Yeon Kim, A. Witkowski, Jong-Gyu Park, R. Gastineau, M. Ashworth, B. Kim, D. Mann, Chunlian Li, A. Igersheim, T. Płociński, Y. Yoo, Sang-Ok Chung, E. Theriot   +12 more
semanticscholar   +1 more source

Phytoplankton growth and potential cyanotoxin production differ in response to nitrogen and phosphorus amendments in late summer communities from Kabetogama Lake (Minnesota, United States)

Journal of Phycology, Volume 62, Issue 3, Page 883-903, June 2026.
Abstract Cyanotoxins such as microcystin (MC), cylindrospermopsin, and saxitoxin are secondary metabolites that are rich in nitrogen (N). Most cyanobacteria grow best on reduced inorganic N (ammonium, NH4), but when NH4 is absent, cyanobacteria can activate physiological pathways to process other N forms (e.g., nitrate; NO3).
James H. Larson, Ryan P. Maki, Sean W. Bailey, Victoria G. Christensen, Keith A. Loftin, Erin A. Stelzer, James C. Smith, Seth A. McWhorter   +7 more
wiley   +1 more source

Mining salinisation of rivers: its impact on diatom (Bacillariophyta) assemblages

, 2020
The composition of the diatom assemblages was analysed in four rivers of Upper Silesia, Poland in 2017. The diatom assemblages studied were found to reflect anthropogenic salinization caused by mining activities.
M. Bąk, Dariusz Halabowski, A. Kryk, I. Lewin, A. Sowa   +4 more
semanticscholar   +1 more source

Diatomáceas fitoplanctônicas de dois diferentes ambientes costeiros da Ilha de Santa Catarina, SC, Brasil [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-graduação em Biologia Vegetal, Florianópolis, 2009As diatomáceas são citadas como sendo o grupo dominante na costa brasileira.
Talgatti, Dávia Marciana
core  

Polyphyly and homoplasic structures in rhizosolenioid diatom genera: a review [PDF]

Plant Ecology and Evolution, 2019
Background and aims – Traditionally, extant rhizosolenioid diatom genera have been placed in a single family, the Rhizosoleniaceae. However, preliminary molecular data suggested that the family might be polyphyletic. Therefore, a literature review of the
Richard Jordan, Matt P. Ashworth, Yuki Uezato, Schonna Manning   +3 more
doaj   +3 more sources