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Temporal and Spatial Study of Water Quality and Trophic Evaluation of a Large Tropical Reservoir

1
Division of Postgraduate Studies and Research, Technological Institute of Culiacán, Juan de Dios Bátiz 310, Col. Guadalupe. CP. 80220 Culiacán, Mexico
2
Division of Hydrologic Sciences, Desert Research Institute, 755 Flamingo Road, Las Vegas, NV 89119-7363, USA
3
CONACYT—Division of Postgraduate Studies and Research, Technological Institute of Culiacán, Juan de Dios Bátiz 310, Col. Guadalupe. CP. 80220 Culiacán, Mexico
*
Author to whom correspondence should be addressed.
Environments 2019, 6(6), 61; https://doi.org/10.3390/environments6060061
Received: 10 May 2019 / Revised: 30 May 2019 / Accepted: 1 June 2019 / Published: 4 June 2019
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Abstract

A water quality study was carried out at the Adolfo López Mateos (ALM) reservoir, one of the largest tropical reservoirs in Mexico, located within an intensive agricultural region. In this study, the seasonal and spatial variations of nine water quality parameters were evaluated at four different sites along the reservoir semiannually over a period of seven years (2012–2018), considering the spring (dry) and fall (rainy) seasons. An analysis of variance was performed to compare the mean values of the water quality parameters for the different sampling sites. Then, a multiparametric classification analysis was carried out to estimate the spatial density of the sampling points by using a probabilistic neural network (PNN) classifier. The observations (seasonal and spatial) of the water quality parameters at the ALM reservoir revealed no significant influence. The trophic status was evaluated using the Carlson Modified Trophic State Index, finding the trophic state of the reservoir at the mesotrophic level, with nitrogen being the limiting nutrient. The PNN revealed neural interactions between total suspended solids (TSS) and the other four parameters, indicating that the concentration ranges of five parameters are equally distributed and classified. View Full-Text
Keywords: Adolfo López Mateos Reservoir; hydrology; water quality; physic-chemical variables; trophic state Adolfo López Mateos Reservoir; hydrology; water quality; physic-chemical variables; trophic state
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Quevedo-Castro, A.; Bandala, E.R.; Rangel-Peraza, J.G.; Amábilis-Sosa, L.E.; Sanhouse-García, A.; Bustos-Terrones, Y.A. Temporal and Spatial Study of Water Quality and Trophic Evaluation of a Large Tropical Reservoir. Environments 2019, 6, 61.

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