Water, Free Full-Text
Por um escritor misterioso
Last updated 25 março 2025

The present study aims to use behavioral responses of the freshwater planarian Girardia tigrina to assess the impact of anthropogenic activities on the aquatic ecosystem of the watershed Araguaia-Tocantins (Tocantins, Brazil). Behavioral responses are integrative and cumulative tools that reflect changes in energy allocation in organisms. Thus, feeding rate and locomotion velocity (pLMV) were determined to assess the effects induced by the laboratory exposure of adult planarians to water samples collected in the region of Tocantins-Araguaia, identifying the sampling points affected by contaminants. Furthermore, physicochemical and microbiological parameters, as well as the presence of inorganic compounds (dissolved aluminum, total barium, total chloride, dissolved iron, total fluoride, total manganese, nitrates, nitric nitrogen, total sulfate, total zinc) and surfactants, were determined on each specific sampling point. The behavioral biomarkers (feeding rate and pLMV) of the freshwater planarians were significantly decreased when organisms were exposed to water samples from four municipalities (Formoso do Araguaia, Lagoa da Confusão, Gurupi and Porto Nacional), sites of the Tocantins-Araguaia hydrographic region—TAHR. Both behavioral biomarkers decreased up to ~37–39% compared to organisms in ASTM medium only. Our results showed that these behavioral biomarkers can be used for fast screening monitoring of environmental samples of freshwater ecosystems, since a decrease in feeding rate and locomotor activity was observed in sites impacted by anthropogenic activities. However, the absence of effects observed in some sampling points does not represent the absence of contamination, since several other classes of contaminants were not determined. In these negative results, the absence of deleterious effects on behavioral biomarkers might only be indicative that the potential presence of contaminants on such sites does not significantly affect the performance of planarians. This fast screening approach seems to be useful to determine contaminated sites in freshwater ecosystems for biomonitoring purposes. This knowledge will help to develop biomonitoring programs and to decide appropriate sampling sites and analysis.

Active Water Harvesting - Rainwater Harvesting for Drylands and Beyond by Brad Lancaster

America's Premier Quality Water Test - WaterLogix Basic

Water - Free Text Effect PSD Template - 10033431

Water text effect. editable and easy to use

The Water Cycle - Free Worksheet - SKOOLGO
Clean water act : myths and facts : Free Download, Borrow, and Streaming : Internet Archive
The Hidden Messages In Water Masaru Emoto : Free Download, Borrow, and Streaming : Internet Archive
Maps of the median water total THM (A), BrTHM (B), and free chlorine

OriginClear Presents Acquisition Roadmap for Water On Demand

Water Conservation Garden Kids Free Coupon - San Diego Museum Council

FREE) Water Text PSD Mockup - Photoshop Supply

Ways to save water at home - order your free water saving devices – Almost Off Grid

Premium PSD Water text effect mockup with drops
Recomendado para você
-
Universidade Federal de Santa Catarina · GitHub25 março 2025
-
Glossários25 março 2025
-
PDF) Student and Lecturer Perceptions of Usability of the Virtual25 março 2025
-
Moodle : Estratégias Pedagógicas e Estudos de Caso by Márcio25 março 2025
-
PDF) A Tool to Facilitate Including Accessible Content in Moodle25 março 2025
-
PDF) The Inter-Orthodox Center of the Church of Greece (DKEE25 março 2025
-
Project Management and Measurement: what relationship?25 março 2025
-
Csedu2018 keynote saliah-hassane_final25 março 2025
-
Social software in Higher Education: Pedagogical Models and25 março 2025
-
Universidade Federal de Santa Catarina no LinkedIn: Evento discute25 março 2025
você pode gostar
-
FNAF 1 Wallpaper Fnaf, 1% wallpaper, Fnaf wallpapers25 março 2025
-
Sada Cruzeiro Vôlei25 março 2025
-
Silent Hill 2 Remake Has Been Announced And Is A Timed PS5/PC Exclusive25 março 2025
-
Russia Flag Vector Icons free download in SVG, PNG Format25 março 2025
-
Mickey Mouse Clubhouse graphic, Mickey Mouse Minnie Mouse graphy montage Frames, mickey mouse, television, heroes, balloon png25 março 2025
-
Cavalo Marinho de tecido25 março 2025
-
Monster Hunter: Freedom Unite (Video Game 2008) - IMDb25 março 2025
-
Ruy López Opening: Berlin, Rio Gambit Accepted - Chess Openings25 março 2025
-
Gashapon KUJI Precure All Stars gashapon Precure Asoto 2023 A Prize 2 Set Big Size Figure, Toy Hobby25 março 2025
-
Buy Call of Duty: Advanced Warfare Day Zero Edition Steam Key GLOBAL - Cheap - !25 março 2025