EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021

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5/25/2021  |   2:00 PM - 3:30 PM   |  Medium- term distribution of the micro-phytoplankton functional groups in a temperate shallow urban lagoon (Gualeguaychú, Argentina)   |  Virtual Platform

Medium- term distribution of the micro-phytoplankton functional groups in a temperate shallow urban lagoon (Gualeguaychú, Argentina)

Functional groups (FGs) classification based on individual traits of phytoplankton and the environmental conditions has been increasingly applied as a bioindicator tool. From May-2015 to August-2019, 25 micro-phytoplankton (MP) sampling were carried out in the lagoon of Parque Unzué using a net (pore= 30 µm) in 3 sampling stations (n=75). MP was identified down to the lowest taxonomic level, and classified into FGs. Forty-nine genera were identified distributing in 6 taxonomic groups: Chlorophyceae (15), Bacillariophyceae (9), Euglenophyceae (5), Cyanophyceae (6), Zygnemataceae (2), and Dinophyceae (2). Of the total of the genera, 37 were classified on 20 FGs being the more frequent W1 , J, MP, and P, characteristic of small water bodies, nutrient-rich, and high turbidity. Although its appearance was not frequent, Ceratium (FG = LM), an invasive genus in freshwaters of South America, was recorded in the autumn-2015 and winter-2019 samples. Moreover, no significant differences (p> 0.05) were found between sampling stations, while differences were found between sampling years and climatic seasons. MP and FGs were an important tool that provided easy, low-cost, and fast information on the status of the lagoon on which information was not previously available.

  • Urban
  • Pollution
  • Nutrients

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Presenters/Authors

Diamela Gianello (), Laboratorio de Indicadores Biológicos y Gestión Ambiental de Calidad de Agua (IBGA), Facultad de Ciencia y Tecnología de la Universidad Autónoma de Entre Ríos (FCyT-UADER); Instituto de Investigaciones en Biodiversidad y Medioambiente (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional del Comahue) - Laboratorio de Indicadores Biológicos y Gestión Ambiental de Calidad de Agua (IBGA), Facultad de Ciencia y Tecnología de la Universidad Autónoma de Entre Ríos (FCyT-UADER), gianellodiamela@gmail.com ;


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Melina Celeste Crettaz Minaglia (), Laboratorio de Indicadores Biológicos y Gestión Ambiental de Calidad de Agua (IBGA), Facultad de Ciencia y Tecnología de la Universidad Autónoma de Entre Ríos (FCyT-UADER), crettaz.melina@uader.edu.ar;


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