Results 1 to 10 of about 661,822 (79)

A survey of aquatic macroinvertebrates in a river from the dry corridor of Nicaragua using biological indices and DNA barcoding [PDF]

Ecology and Evolution, 2022
Aquatic macroinvertebrates are widely used as indicators for water quality assessment around the world. Modern strategies for environmental assessment implement molecular analysis to delimitate species of aquatic macroinvertebrates.
Bryant H. Mendoza‐Ramírez, Lucía Páiz‐Medina, Thelma Salvatierra‐Suárez, Nelvia Hernández, Jorge A. Huete‐Pérez   +4 more
doaj   +3 more sources

Recalibrating the BMWP-CR index: a methodological proposal for updating tolerance scores and water quality classifications

Ecological Indicators
The BMWP-CR index, integrated into Costa Rican legislation in Minae, 2007, requires recalibration to more accurately reflect local ecological conditions.
Francisco Quesada-Alvarado, Pablo E. Gutiérrez-Fonseca, Monika Springer, Paola Campos-Arce, Darha Solano-Ulate, Alejandra Jiménez-Fretes, Jenny Bermúdez-Monge, Lidia Áviles, Gerardo Umaña-Villalobos, Silvia Echeverría-Sáenz   +9 more
doaj   +4 more sources

Estrategia de monitoreo hídrico comunitario para la microcuenca río Jorco basado en el análisis de indicadores fisicoquímicos, microbiológicos y biológicos de la calidad de agua

Tecnología en Marcha, 2023
Las profundas deficiencias que enfrenta el país en políticas de gestión hídrica se reflejan en la contaminación fisicoquímica, microbiológica y biológica de los ríos nacionales. El objetivo de este estudio fue proponer una estrategia de monitoreo hídrico
Guillermo Calvo-Brenes, Karla Salazar-Céspedes   +1 more
doaj   +2 more sources

What Works? the Influence of Changing Wastewater Treatment Type, Including Tertiary Granular Activated Charcoal, on Downstream Macroinvertebrate Biodiversity Over Time. [PDF]

Environ Toxicol Chem, 2019
Transformation in the fortunes of a macroinvertebrate population in a wastewater dominated river. ASPT = average score per taxon; LOQ = limit of quantification. Abstract The present study reviewed the impacts of wastewater on macroinvertebrates over 4 decades in a United Kingdom lowland river.
Johnson AC, Jürgens MD, Edwards FK, Scarlett PM, Vincent HM, von der Ohe P.   +5 more
europepmc   +2 more sources

Taxonomic and Functional Diversity of Aquatic Macroinvertebrate Assemblages and Water Quality in Rivers of the Dry Tropics of Costa Rica

Frontiers in Environmental Science, 2021
One of Costa Rica’s driest areas is the province of Guanacaste, in the Pacific Northwest, with almost no rain during the dry season from November to April.
Bert Kohlmann, Danny Vásquez, Alejandra Arroyo, Monika Springer, Monika Springer   +4 more
doaj   +2 more sources

Calidad biológica de cinco cuerpos de agua dulce superficiales de la Cuenca 24 Virilla-Tárcoles. 2009-2024

Revista Académica Arjé
En el siguiente estudio se analizaron biológicamente 5 de los principales afluentes de la Cuenca 24 Virilla-Tárcoles. Para ello, se utilizó el índice biológico BMWP’-CR (Biological Monotoring Working Party score) modificado para Costa Rica del Decreto ...
José Manuel Quirós-Sanabria, Darner Adrián Mora-Alvarado   +1 more
doaj   +2 more sources

Comparison of Temperate and Tropical Versions of Biological Monitoring Working Party (BMWP) Index for Assessing Water Quality of River Aturukuku in Eastern Uganda

Global Ecology and Conservation, 2020
Despite their socio-economic and ecological importance, rivers are among the most threatened ecosystems. As a result, reliable and affordable monitoring system is fundamental for their effective management and conservation.
James Okot Okumu, Robinson Odong, Ochieng Hannington   +2 more
exaly   +2 more sources

Determinación de los índices BMWP/COL, (QBR), (IHF) E ICO en Valledupar, Colombia

Revista Politécnica, 2022
Se determinó la calidad ambiental del curso hídrico del río Guatapurí sobre el balneario Hurtado en los meses de diciembre de 2018 a junio de 2019, para ello, se utilizaron los índices QBR, IHF, BMWP/COL e índice de contaminación ICO evaluados en 3 ...
Karina Paola Torres-Cervera, Jesús Ramón Herrera-Martínez, Breiner Andrés Navarro-Sining, Nicolás Martínez-García, Adriana Royero-Ibarra, A. Cahuana-Mojica   +5 more
exaly   +2 more sources

Water Quality Analysis in a Subtropical River With an Adapted Biomonitoring Working Party (BMWP) Index

Diversity, 2021
Subtropical rivers in developing countries often lack adequate monitoring, which makes it difficult to comprehensively determine their water quality when faced with different anthropic impacts.
Martin Lopez Hernández, Jacinto Sedeño-Díaz, Rodrigo Moncayo-Estrada   +2 more
exaly   +2 more sources

Disentangling responses to natural stressor and human impact gradients in river ecosystems across Europe

Journal of Applied Ecology, Volume 59, Issue 2, Page 537-548, February 2022., 2022
Metrics are needed to assess the ecological status of dynamic river ecosystems—including those that sometimes dry—and thus to identify priority sites requiring action to tackle the causes of environmental degradation. Our results inform recommendations guiding the development of such metrics.
Rachel Stubbington, Romain Sarremejane, Alex Laini, Núria Cid, Zoltán Csabai, Judy England, Antoni Munné, Thomas Aspin, Núria Bonada, Daniel Bruno, Sophie Cauvy‐Fraunie, Richard Chadd, Claudia Dienstl, Pau Fortuño Estrada, Wolfram Graf, Cayetano Gutiérrez‐Cánovas, Andy House, Ioannis Karaouzas, Eleana Kazila, Andrés Millán, Manuela Morais, Petr Pařil, Alex Pickwell, Marek Polášek, David Sánchez‐Fernández, Iakovos Tziortzis, Gábor Várbíró, Catherina Voreadou, Emma Walker‐Holden, James White, Thibault Datry   +30 more
wiley   +1 more source