Results 41 to 50 of about 4,369 (186)

Effects of freshwater salinization on a salt‐naïve planktonic eukaryote community

Limnology and Oceanography Letters, 2023
Freshwater salinization is a widespread issue, but evidence of ecological effects on aquatic communities remains scarce. We experimentally exposed salt‐naive plankton communities of a north‐temperate, freshwater lake to a gradient of chloride (Cl ...
Louis Astorg, Jean‐Christophe Gagnon, Cassandre S. Lazar, Alison M. Derry   +3 more
doaj   +1 more source

Free-living protozoa in two unchlorinated drinking water supplies identified by phylogenic analysis of 18S rRNA gene sequences [PDF]

, 2009
Free-living protozoan communities in water supplies may include hosts for Legionella pneumophila and other undesired bacteria and also pathogens. This study aimed at identifying free-living protozoa in two unchlorinated groundwater supplies using ...
Valster, R.M., Wullings, B.A., Bakker, G., Smidt, H., Kooij, D., van der   +4 more
core   +1 more source

Taxonomy and phylogeny of the genus Cryptomonas (Cryptophyceae, Cryptophyta) from Korea

ALGAE, 2013
The genus Cryptomonas is easily recognized by having two flagella, green brownish color, and a swaying behavior. They have relatively simple morphology, and limited diagnostic characters, which present a major difficulty in differentiating between species of the genus.
Bomi Choi, Misun Son, Jong Im Kim, Woongghi Shin   +3 more
openaire   +1 more source

Comparison between fluorometry and microscopy‐based phytoplankton assessments in the Laurentian Great Lakes

Limnology and Oceanography: Methods, EarlyView.
Abstract Photosynthetic pigment fluorescence is commonly used in limnology and oceanography as a proxy for phytoplankton biomass. Fluorometry has been used to detect subsurface algal blooms, characterize dynamics of the deep chlorophyll layer, and to provide greater vertical resolution to phytoplankton monitoring.
Katya E. Kovalenko, Euan D. Reavie, Christopher T. Filstrup, Anne Scofield, Meaghan Lightfoot, Erica Yang, Elizabeth E. Alexson   +6 more
wiley   +1 more source

Seasonal Environmental Conditions and River Morphology Shape Summer Phytoplankton Communities

Freshwater Biology, Volume 71, Issue 4, April 2026.
ABSTRACT Phytoplankton form the base of large river food webs, but there are limited studies on the nature and drivers of communities over longer time scales. Further, climate change is projected to favour taxa associated with harmful algal blooms, but our knowledge of the timing, locations and drivers of cyanobacteria in rivers lags that of lakes and ...
Kathi Jo Jankowski, James H. Larson, John Manier   +2 more
wiley   +1 more source

Las algas del canal olímpico de piragüismo de aguas tranquilas (Barcelona)

Collectanea Botanica, 1997
Se ha estudiado la flora algal del Canal de Piragüismo de Aguas Tranquilas durante un año. Se han identificado 90 taxa (20 Cyanophyta, 25 Chlorophyta , 1 Charophyta, 9 Euglenophyta, 31Chrysophyta, 2 Cryptophyta y 2 Pirrophyta).
Joan García, Vidal Merino, Manuel Fernández, Mariona Hernández-Mariné   +3 more
doaj   +1 more source

Patterns of major photosynthetic pigments in freshwater algae. 1. Cyanoprokaryota, Rhodophyta and Cryptophyta [PDF]

Annales de Limnologie - International Journal of Limnology, 2003
This study investigated major pigment patterns of 8 cyanoprokaryota, 2 rhodophytes and 2 cryptomonads isolated from freshwater ecosystems. Analysis was done by means of HPLC. The method, historically adapted to marine phytoplankton, was modified to accommodate limnic algae.
Schagerl, Michael, Donabaum, Karl
openaire   +2 more sources

Algal and cyanobacterial diversity in saline rivers of the Elton Lake Basin (Russia) studied via light microscopy and next-generation sequencing

Biosystems Diversity, 2021
Naturally saline rivers are known in various regions of the world. Saline rivers with a salinity gradient from the source to the mouth are particularly interesting, because the range of salinity is the structure-forming factor of the hydrobiont ...
M. E. Ignatenko, E. A. Selivanova, Y. A. Khlopko, Y. A. Khlopko, T. N. Yatsenko-Stepanova   +4 more
doaj   +1 more source

Environmental Gradients and Ecological Processes Are Main Drivers of Eukaryotic Diversity in the Eastern Red Sea

Environmental DNA, Volume 8, Issue 1, January–February 2026.
Across 266 water column samples, COI eDNA metabarcoding detected 4298 eukaryotic MOTUs spanning 40 phyla in the Eastern Red Sea. Community composition varied strongly across depth and regions, revealing hidden biodiversity patterns and providing a baseline for conservation‐oriented monitoring in a future‐ocean analogue.
Carlos Angulo‐Preckler, Sofia Frappi, Elisa Laiolo, Kah Kheng Lim, Diego E. Rivera Rosas, Christopher A. Hempel, Larissa Frühe, Anastasiia Martynova, Alexandra Steckbauer, Taiba Alamoudi, Shannon G. Klein, Vincent A. Pieribone, Mohammad A. Qurban, Susana Agusti, Carlos M. Duarte   +14 more
wiley   +1 more source

Phytoplankton composition and functional groups in a tropical humic coastal lagoon, Brazil Composição e grupos funcionais do fitoplâncton de uma lagoa costeira tropical húmica, Brasil

Acta Botânica Brasílica, 2006
This paper presents the composition and functional groups of the phytoplankton from Comprida lagoon, a tropical humic coastal Lagoon located in Southeast Brazil.
Catharina Alves-de-Souza, Mariângela Menezes, Vera Huszar   +2 more
doaj   +1 more source