Results 1 to 10 of about 61,640 (228)

Using the soil and water assessment tool to simulate the pesticide dynamics in the data scarce Guayas River Basin, Ecuador [PDF]

Water (Switzerland), 2020
Agricultural intensification has stimulated the economy in the Guayas River basin in Ecuador, but also affected several ecosystems. The increased use of pesticides poses a serious threat to the freshwater ecosystem, which urgently calls for an improved ...
Arias-Hidalgo, Mijail, Cambien, Naomi, Dominguez-Granda, Luis, Forio, Marie Anne Eurie, Gobeyn, Sacha, Goethals, Peter, Nolivos, Indira, Volk, Martin, Witing, Felix   +8 more
core   +3 more sources

Distribution of agricultural pesticides in the freshwater environment of the Guayas river basin (Ecuador) [PDF]

Science of The Total Environment, 2019
The rapid increase and transition to more intensive agricultural activities in developing nations are often leading to misuse and overuse of pesticides, making their environment vulnerable for pesticide accumulation. In the present study, the Guayas river basin was taken as a representative case study to evaluate pesticide contamination of the ...
Arne Deknock, Niels De Troyer, Michael Houbraken, Luis Dominguez-Granda, Indira Nolivos, Wout Van Echelpoel, Marie Anne Eurie Forio, Pieter Spanoghe, Peter Goethals   +8 more
openaire   +5 more sources

Establishing an Ecuadorian Isoscape: The Importance of Baseline Strontium Data in a Volcanic Landscape. [PDF]

Am J Biol Anthropol
ABSTRACT Objectives Strontium isotopes (87Sr/86Sr) have been used worldwide to track migrations and identify nonlocal individuals in the past. In South America, these studies often use comparative baseline maps, or isoscapes, established by samples from archaeological fauna and geologic formations. However, baseline research has focused on coastal Peru
Juengst SL, Alvarez MPO.
europepmc   +2 more sources

Fiddler Crabs (Crustacea: Decapoda: Ocypodidae) From Coastal Ecuador and the Galápagos Islands: Species Descriptions and DNA Barcodes. [PDF]

Ecol Evol
Twenty‐five taxa were collected during the surveys, while two more were noted from the literature and museum collections; five are new to Ecuador. DNA sequences for cytochrome c oxidase–subunit 1 were obtained for 27 operational taxonomic units with three morphologically indistinguishable cryptic or pseudo‐cryptic taxa were also revealed.
Thurman CL, McNamara JC, Shih HT, Capparelli MV.   +3 more
europepmc   +2 more sources

Native Bacillus-Based Probiotic Consortia Suppress Vibrio parahaemolyticus and Restructure Hatchery Water Microbiomes in Shrimp Larval Systems [PDF]

Pathogens
Shrimp aquaculture is constrained by opportunistic bacterial pathogens, particularly Vibrio parahaemolyticus, whose proliferation in hatchery systems is shaped by microbial community structure.
Betty Pazmiño-Gomez, Karen Rodas-Pazmiño, Rodrigo Pazmiño-Pérez, Tania Tapia-Guijarro, Wilman Balcazar-Quimi, Samuel Valle-Asan, Salma Salazar-Vera, Martin Villalva-Vera, Deily Ochoa-Fajardo, Edgar Rodas-Neira   +9 more
doaj   +2 more sources

Pomacea canaliculata (Lamarck, 1828) como bioindicador de la presencia de cadmio en el río Guayas, Daule y Babahoyo

Revista Científica de Ciencias Naturales y Ambientales, 2021
La cuenca del río Guayas es la más grande del Ecuador, formado por la confluencia de los ríos Daule y Babahoyo. Estudios anteriores evidencian que están expuestos a descargas directas de aguas residuales y químicos usados en prácticas agrícolas. Por lo
Nelson Ramírez-Prado, Beatriz Pernía, Mariuxi Mero Valarezo, Erwin Larreta, Alfredo Noboa-Cárdenas, Lissette Ramírez-Moreira, David López, Josué Zambrano, Jorge Muñoz, Kenya Bravo, Michelle Baquerizo, Ámbar Benavides, Roberto Castro   +12 more
doaj   +1 more source

Las especies emblemáticas de flora y fauna de la ciudad de Guayaquil y de la provincia del Guayas, Ecuador

Revista Científica de Ciencias Naturales y Ambientales, 2021
Se provee una definición y las características de las especies emblemáticas. De acuerdo con éstas, se presentan 27 taxa emblemáticas de la ciudad de Guayaquil y de la provincia del Guayas, en la costa de Ecuador, estas son: 14 especies de plantas ...
Xavier Cornejo
doaj   +1 more source

Hemodiafiltración, una oportunidad de vida, para crear vida

REV SEN, 2023
Introducción: La posibilidad de lograr un embarazo en mujeres con nefropatía lúpica en tratamientos de hemodiálisis es muy baja del 0.4%-1.4%. Caso clínico: Mujer de 27 años, con nefropatía lúpica quien durante el programa de hemodiálisis fue ...
José Dorta Díaz, Harold Alvarez, Mariant Jenifer Borges Colina, Juan Perez Chill , Verónica Alvarado Ereú, Pedro Amador Guillen   +5 more
doaj   +1 more source

Salinity and stable isotope dataset for Guayas estuary waters

Data in Brief, 2021
The Guayas estuary is an ecologically and economically vital, large estuarine system located on the western coast of South America. A suite of ∼400 water samples was collected and analyzed to enable investigation of the sources of water types within this estuary, as well as environmental processes active within various portions of it.
Niall C. Slowey, Edwin B. Pinto
openaire   +3 more sources

Detección de Microsporidios y factores asociados en pacientes VIH positivos con síndrome diarreico en el Hospital “Dr. José Daniel Rodríguez”, Guayaquil-Ecuador, 2021-2022.

Kasmera, 2023
La Microsporidiosis es una infección humana oportunista emergente, capaz de producir desde una infección localizada hasta una infección sistémica, el objetivo fue detectar la presencia de Microsporidios en muestras de heces de pacientes VIH positivos ...
Betty Pazmiño Gomez, Karen Alexandra Rodas-Pazmiño, Luis Eduardo Cagua-Montaño, Roberto Darwin Coello Peralta, Roberto Darwin Coello Peralta, Jennifer Paola Rodas-Pazmiño   +5 more
doaj   +1 more source