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predominaron en el periodo de alta climático. Finalmente, a partir del
precipitación. En cuanto al zooplancton, análisis de calidad del agua, composición
durante los dos periodos, predominaron biológica y los índices de estado
los Cladóceros (71ind/L), comparados trófico de Carlson (1977) y Carlson &
con los Copépodos (11ind/L) y Rotíferos Simpson (1996), se pudo concluir que
(3ind/L). Los resultados con relación a el humedal presenta nivel eutrófico en
la cobertura vegetal mostraron que hay los dos periodos climáticos y que los
una disminución en el espejo de agua análisis de los parámetros evaluados,
en el periodo de alta precipitación, lo se correlacionan con la clasificación
que genera un aumento en la cobertura obtenida.
vegetación flotante en este periodo

SUMMARY

etlands are ecosystems of the bathymetry and vegetation cover of with the highest density (21285ind/
great natural and cultural the wetland. As results, it was identified ml) in the low precipitation period,
Wvalue, known to provide that the nutrients do not present the Volvocaceae family (23247ind/
multiple environmental functions and significant differences in the two climatic ml), Selenastraceae (20196ind/ml)
services (Guillot & Pinilla, 2017); from periods, presenting similar values. and Ulotrichaceae (2256ind/ml),
the Jaime Duque Park initiative located Phosphates (PO₄³ ) had values between predominated in the period of high
-
in Tocancipá- Cundinamarca. It was 0.49 to 2.19mg/l, Nitrites (NO2−) were precipitation. Regarding zooplankton,
decided to start working on the recovery between 0.01 to 0.11mg/l, Ammonium during the two periods, Cladocerans
and conservation of the Arrieros (NH₄ ) measured was 0.06 at 0.29mg/l (71ind/L) predominated compared
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wetland located in this park. As a general this being the lowest. On the contrary, with Copepods (11ind/L) and Rotifers
objective of this study, it was proposed Nitrates (NO3-) presented the highest (3ind/L). The results in relation to the
to determine the trophic status and values with ranges between 3.41 to vegetation cover showed that there is
water quality of the Arrieros Wetland, 3.67mg/l. The presence of nutrients a decrease in the water mirror in the
in periods of high and low rainfall. During in the water body may be due to the period of high precipitation, which
the months of July to December 2019, runoff of fertilizers, pesticides from generates an increase in the floating
samples were taken and processed agricultural lands and the contribution vegetation cover in this climatic period.
to analyze the characteristics related of wastewater, factors that influence Finally, from the water quality analysis,
to three aspects: Physical-Chemical the increase of nutrients in the wetland Biological composition and trophic state
variables, biological variables and trophic (Illana, 2014; Espejo, 2017). Similarly, indices of Carlson (1977) and Carlson
status and water quality index. For this, it was identified that during the two & Simpson (1996) it was possible to
the methodology of standard methods climatic periods there were significant conclude that the wetland presents
and the Carlson index were followed. differences in Transparency, COD, BOD, a eutrophic level in the two climatic
For data analysis, a PCA and Shannon- Conductivity and TDS. Regarding the periods and that the analyzes of the
Wiener, Anova and Kruskal-Wallis tests biological variable of phytoplankton; the evaluated parameters are correlated
were performed. Similarly, geographic most predominant families in the two with the classification obtained.
information systems were used to study climatic periods were Chodatellaceae

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