Gómez-Martínez, E.B. (2021). Monitoreo del estado de salud de los lagos Zempoala y Tonatiahua: evaluación de la calidad del agua, estado trófico y comunidad zooplanctónica. [Monitoring the health status of Lakes Zempoala and Tonatiahua: assessment of water quality, trophic status, and zooplankton community.]. Tesis de Maestría, Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Mexico. 86 pp.

511446

Gómez-Martínez, E.B.

2021

86 pp.

Publication

Available for editors  

Zempoala and Tonatiahua Lake thave very serious ecological deterioration, caused by several factors, such as: immoderate logging, extraction of forest soil, overgrazing, pollution and intensive use as recreational areas. The aim of this study was to analyze the contribution of zooplankton as a biological element to evaluate the water quality of lakes Zempoala and Tonatiahua. Regarding the index of Dinius water quality, Zempoala is classified with waters that go from contaminated to slightly contaminated in order to use it as drinking water and as acceptable quality for fishing and recreational use, while in Tonatiahua it is considered slightly contaminated to use as drinking water and acceptable quality to excellent quality for fishing and recreational use. The diversity of plankton is constituted of 64 species were recorded, classified into two Phyla, three classes, four orders, 22 families and 36 genera. From the total of the species, 50 belongs to the group of rotifers (77%), twelve belongs to the group of cladocerans (19%) and two copepods (3%). The Ploimida order was the most represented with a total of 14 families (65%), while the Brachionidae family presented the highest number of genera (five), followed by the Notommatidae family (three) while the Lecane genus exhibited the highest number. of species (nine). A total of 19,711 org/L were collected, from these the highest abundance corresponded to rotifers, followed by cladocerans and the least abundant were copepods. Based on the Shannon-Wiener index, both lakes are considered moderately polluted. The hierarchical analysis by grouping by correlation of Pearson AJCP-I, show three groups at a cut-off level of 0.98, group I, comprises only station E3 of Zempoala, group II is made up of station E4 of Zempoala and stations E1 and E2 of Tonatiahua, group III, is represented by stations E3 and E4 of Tonatiahua and stations E1 and E2 of Zempoala. The variation in water quality in both lakes is due to the fact that they are subject to physicochemical environmental changes, considered as aquatic environments that vary from low to medium quality. Based on the Carlson trophic state index, they are considered as oligotrophic ecosystems, which is strengthened by the presence of three species of the genus Asplancha (A. multiceps, A. priodonta and A. sieboldi), which it is considered as an indicator of oligotrophic ecosystems. The presence of species registered in mesotrophic and eutrophic ecosystems such as Brachionus havanaensis, Kellicottia bostonensis, Trichocerca elongata, Trichocerca porcellus, Trichocerca similis, Trichocerca tenuir, Bosmina longirostris, Daphnia ladayevis, Ceriodaphnia reticulata, Comptocercus sphericulata, Comptocercus sphaericus and Comptocercus dadayi; these lakes are in a eutrophication process.

RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)

[Back to search]