Organic contamination by coliforms, Nitrogen and Phosphorus in the acuatic ecosistems of the Ayuquila-Armeria basin, Jalisco, Mexico
The Ayuquila-Armería river basin is within the classification of priority basins in Mexico, given its high diversity and due to its high degree of alteration of functional dynamics and the levels of social pressure it presents, therefore, it is necessary to carry out a analysis of water quality with...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Online |
| Language: | spa |
| Published: |
Universidad de Sonora
2022
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| Online Access: | https://biotecnia.unison.mx/index.php/biotecnia/article/view/1283 |
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| Summary: | The Ayuquila-Armería river basin is within the classification of priority basins in Mexico, given its high diversity and due to its high degree of alteration of functional dynamics and the levels of social pressure it presents, therefore, it is necessary to carry out a analysis of water quality within the basin. The objective was to evaluate organic contamination, carrying out two sampling campaigns in the rainy season (2015) and dry season (2016), in 18 sites in the basin. The comprehensive analysis of physicochemical and biological variables was implemented. 90% of the sites presented eutrophication given the PTotal concentrations, 77% exceeded the permissible limit for the NTotal concentrations; the IIB showed that 19% of the sites present a high degree of organic contamination; in the rainy season the highest concentrations of CFU (18 to 190 CFU / mL) were found and 50% of the sites exceeded the permissible limit (10 CFU / mL). The influence of tributary tributaries to the main channel increases drastically in the rainy season, it increases flows and impoverishes the quality of surface water by the carryover of pollutants from rural and urban areas |
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