Variación estructural de la comunidad perifítica colonizadora de sustratos artificiales en la zona de ritral del río Medellín, Colombia
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| Autores: | , |
|---|---|
| Formato: | artículo original |
| Estado: | Versión publicada |
| Fecha de Publicación: | 2007 |
| Descripción: | Weekly samples were taken from microscope glass slides attached to acrylic substrata were placed at subsuperficial level in two sampling stations in the higher section of the Medellín river, Colombia, from January through March 1998. Diversity and evenness varied with time (Friedman p<0.05). There were spatial differences in biomass, productivity, diversity and evenness (Friedman p<0.05). Total bio-mass and productivity increased with the time of colonization at station 1. Station 2, with four times more water flow, had lower diversity and mean evenness values. During the colonization process the were 76 species (22 families). The Chrysophyta, mainly diatoms, were the most abundant (56 % of the total), followed by Clorophyta (29 %), Cyanophyta (11 %) and Cryptophyta (4 %). |
| País: | Portal de Revistas UCR |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Lenguaje: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/6033 |
| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/6033 |
| Palabra clave: | Perifiton ríos biopelícula colonización limnología tropical. Periphyton stream biofilms colonization tropical limnology |