Results 41 to 50 of about 3,901 (173)

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

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

Condiciones ambientales a finales del Estadio Isotópico 6 (EI 6: > 130000 años) en el centro de México: caracterización de una sección de sedimentos laminados proveniente del Lago de Chalco

Revista Mexicana de Ciencias Geológicas, 2018
En los sistemas lacustres relativamente profundos y con un bajo contenido de oxígeno en la interfase agua-sedimento es común la preservación de sedimentos anualmente laminados (varvas), los cuales indican una estacionalidad marcada en los procesos de ...
Diana Angélica Avendaño-Villeda, Margarita Caballero, Beatriz Ortega-Guerrero, Socorro Lozano-García, Erik Brown   +4 more
doaj   +1 more source

Coscinodiscophyceae and Fragilariophyceae (Diatomeae) in the Iguaçu River, Paraná, Brazil [PDF]

Acta Botanica Brasilica, 2014
A taxonomic survey was carried out on Coscinodiscophyceae and Fragilariophyceae found in the Iguaçu River catchment area within Iguaçu National Park, in the state of Paraná, Brazil. Between September 2007 and August 2008, we collected 24 samples from two stations on the Iguaçu River, upstream and downstream of the falls.
Nardelli, Margaret Seghetto, Bueno, Norma Catarina, Ludwig, Thelma Alvim Veiga, Tremarin, Priscila Izabel, Bartozek, Elaine Cristina Rodrigues   +4 more
openaire   +4 more sources

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  

Las diatomeas y los bosques invisibles del océano

, 2020
Colección ¿Qué sabemos de?.-- 96 pagesLas diatomeas son algas unicelulares caracterizadas por vivir encerradas en cápsulas microscópicas de cristal. A pesar de ser responsables del 20% de la producción primaria global, más de lo que producen todos los ...
Cermeño, Pedro
core  

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

Lipid biomarkers reveal trophic relationships and energetic trade‐offs in contrasting phenotypes of the cold‐water coral Desmophyllum dianthus in Comau Fjord, Chile

Functional Ecology, Volume 38, Issue 1, Page 126-142, January 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Benthic suspension feeders like corals and sponges are important bioengineers in many marine habitats, from the shallow tropics to the depth of polar oceans. While they are generally considered opportunistic, little is known about their actual in situ diet.
Marlene Wall, Kristina K. Beck, Nur Garcia‐Herrera, Gertraud M. Schmidt‐Grieb, Jürgen Laudien, Juan Höfer, Günter Försterra, Christoph Held, Gernot Nehrke, Juan Pablo Espinoza, Matthias Woll, Martin Graeve, Claudio Richter   +12 more
wiley   +1 more source