Results 31 to 40 of about 416 (131)

Riqueza del fitoplancton en el río Gastona (Tucumán, Argentina)

Lilloa, 2021
El objetivo de este trabajo fue contribuir al conocimiento de las diatomeas encontradas en el río Gastona (Tucumán, Argentina) en 1994 y 1998-1999, Se seleccionaron cinco sitios de muestreos a lo largo del río, tres de ellos coincidentes con los ...
Virginia Mirande, Beatriz C. Tracanna
doaj  

ParAquaSeq, a Database of Ecologically Annotated rRNA Sequences Covering Zoosporic Parasites Infecting Aquatic Primary Producers in Natural and Industrial Systems

Molecular Ecology Resources, Volume 25, Issue 6, August 2025.
ABSTRACT Amplicon sequencing tools such as metabarcoding are commonly used for thorough characterisation of microbial diversity in natural samples. They mostly rely on the amplification of conserved universal markers, mainly ribosomal genes, allowing the taxonomic assignment of barcodes.
Silke Van den Wyngaert, Slawek Cerbin, Laura Garzoli, Hans‐Peter Grossart, Alena S. Gsell, Alexandra Kraberg, Cécile Lepère, Sigrid Neuhauser, Miloš Stupar, Andrea Tarallo, Michael Cunliffe, Claire Gachon, Ana Gavrilović, Hossein Masigol, Serena Rasconi, Géza B. Selmeczy, Dirk S. Schmeller, Bettina Scholz, Natàlia Timoneda, Ivana Trbojević, Elżbieta Wilk‐Woźniak, Albert Reñé   +21 more
wiley   +1 more source

Composición, abundancia y distribución de Diatomeas en dos localidades de la provincia del Guayas entre octubre 2013 y febrero 2014.

Revista Científica y Tecnológica UPSE, 2018
El presente trabajo se desarrolló en dos localidades de la Provincia del Guayas  entre octubre y febrero 2014. El objetivo de esta investigación   fue comparar la  composición, abundancia  y distribución  de diatomeas centrales  en las aguas estuarinas ...
Yadira Solano Vera, Carlos Caregua Villegas, Richard Duque Marín, Tanya Gonzalez Banchon   +3 more
doaj   +1 more source

A Scavenging Behavior of Cyclammina cancellata (Foraminifera, Rhizaria) on a Crustacean Carcass: Amino Acid Nitrogen Isotope and Microbiome Analyses

Marine Ecology, Volume 46, Issue 3, May/June 2025.
ABSTRACT Cyclammina cancellata is a common benthic foraminifer found at bathyal depths across the world's oceans. Despite its important role in deep‐sea food webs and biogeochemical cycles, the feeding habits of this species remain poorly understood. In this study, we document an aggregation of C.
Hidetaka Nomaki, Yoshiyuki Ishitani, Satoshi Okada, Noriyuki Isobe, Naoto F. Ishikawa   +4 more
wiley   +1 more source

Geomorphic consequences of freshwater discharge and microbial mats in a macrotidal environment: The case of the beach of Dannes (northern France)

Earth Surface Processes and Landforms, Volume 50, Issue 5, April 2025.
This transdisciplinary study analyses the geomorphic consequences of microbial mats associated with freshwater outflows in a macrotidal environment. Microorganisms were identified using the DNA metabarcoding approach. SEM analysis of quartz collected from the beach surface provided data on the marine and aeolian forces, as well as biological processes ...
Yvonne Battiau‐Queney, Sébastien Monchy, Sandra Ventalon, Marion Delattre, Luen‐Luen Li, Vincent Sipka, Clémentine Gallot, François Guillot, Felipe Artigas   +8 more
wiley   +1 more source

18S rRNA Metagenomic Analysis of Nodular Gill Disease in Swiss Rainbow Trout (Oncorhynchus mykiss)

Journal of Fish Diseases, Volume 48, Issue 3, March 2025.
ABSTRACT Nodular gill disease (NGD) is a serious proliferative gill condition that affects farmed salmonids, particularly in Europe. While the cause of NGD remains unknown (and maybe multifactorial), various amoebae are often isolated from the gills of affected fish and can in some cases be seen associated with lesions by histopathology.
James W. Wynne, Chloe J. English, Stefania M. Vannetti, Megan Rigby, Petra R. Quezada‐Rodriguez, Ralph Knüsel, Christine Huynh, Heike Schmidt‐Posthaus   +7 more
wiley   +1 more source

Lagos como sensores de cambio climático: el caso de La Alberca de Tacámbaro, Michoacán, México

TIP Revista Especializada en Ciencias Químico-Biológicas, 2019
Los lagos están entre los ecosistemas más sensibles al cambio climático, ya que el comportamiento termodinámico de su columna de agua es controlado por la marcha anual de la temperatura.
Margarita Caballero, Gabriela Vázquez
doaj   +1 more source

Biogeographical Distribution of River Microbial Communities in Atlantic Catchments

Environmental Microbiology Reports, Volume 17, Issue 1, February 2025.
We discovered different factors affecting river microbial communities (RMC) diversity and composition across Atlantic catchments in Europe. Prokaryote diversity was mainly influenced by topography and geology, while eukaryotic groups were driven by land use and cover.
Alejandra Goldenberg‐Vilar, María Morán‐Luis, David R. Vieites, José Manuel Álvarez‐Martínez, Ana Silió, Cendrine Mony, Simone Varandas, Sandra Mariza Monteiro, Diane Burgess, Edna Cabecinha, José Barquín   +10 more
wiley   +1 more source

Evaluación de las diatomeas de la comunidad del perifiton como bioindicadoras, en relación al estado trófico de tres humedales en época seca, en Bogotá, Colombia

Acta Biológica Colombiana, 2006
Durante la época seca del año 2005 en los humedales Guaymaral, Santamaría del Lago y Tibanica (escala regional), ubicados dentro del perímetro urbano de Bogotá, Colombia; se seleccionaron cinco estaciones en cada uno (escala sectorial) y en cada estación
Viviana del Pilar Rojas Casallas, Gabriel Guillot Monroy   +1 more
doaj  

Geochemical and microbiological variability of aerobic and anaerobic sediments along a bifurcated sulphate‐saturated brine spring in western Canada

The Depositional Record, Volume 10, Issue 5, Page 637-669, November 2024.
A tufa mound developed in north‐east Alberta is characterised by an unusual emplacement of a gypsum caprock. This two‐tiered architecture resulted from the bicarbonate‐saturated groundwater flow along Upper Devonian limestone being redirected deeper and encountering the halite–anhydrite dissolution trend within the underlying Prairie Evaporite ...
Paul L. Broughton
wiley   +1 more source