Wastewater continuously affects lacustrine ecosystems, such is the case of Lake Titicaca, the highest navigable lake in the world. To assess this impact, the concentration of heavy metals in water and sediment samples, physicochemical parameters, and the diversity of phytoplankton were evaluated in locations near the wastewater effluent. With the data on heavy metals in sediments, the Individual Potential Risk Factor Index (Eri) was assessed and the analysis of Potential Ecological Risk was conducted (PERI). The results revealed that pH, BOD5, NAMO and Phosphorus exceeded the limits established by Peruvian law. Additionally, we identified 14 metal elements in surface water samples; with a positive correlation between these metals and the sampling point (4), as well as total suspended solids (TSS). In the sediment samples, 35 different metal elements were detected. Specifically, point 4 s...

Wastewater continuously affects lacustrine ecosystems, such is the case of Lake Titicaca, the highest navigable lake in the world. To assess this impact, the concentration of heavy metals in water and sediment samples, physicochemical parameters, and the diversity of phytoplankton were evaluated in locations near the wastewater effluent. With the data on heavy metals in sediments, the Individual Potential Risk Factor Index (Eri) was assessed and the analysis of Potential Ecological Risk was conducted (PERI). The results revealed that pH, BOD5, NAMO and Phosphorus exceeded the limits established by Peruvian law. Additionally, we identified 14 metal elements in surface water samples; with a positive correlation between these metals and the sampling point (4), as well as total suspended solids (TSS). In the sediment samples, 35 different metal elements were detected. Specifically, point 4 s...

The concentrations of antibiotic residues in aquatic ecosystems are experiencing a progressive increase, which is exerting significant impacts on resident species. The species Lemna gibba and Azolla filiculoides are widely known in studies of toxicity and phytoremediation. Furthermore, these species have been observed to exhibit interesting responses to exposure to antibiotic compounds. In this study, the effects of azithromycin, ciprofloxacin, amoxicillin, cephalexin, ampicillin, and clindamycin (0.00, 2.5, 5, 7.5 mg/L) on biomass, Relative Growth Rate (RGR), percentage of area, and chlorophyll were evaluated over a period of 7 days. Biomass data were collected to calculate RGR, and daily images of each experimental unit were captured to estimate the percentage of area coverage and RGB bands for chlorophyll calculation purposes. The results revealed toxic effects of the concentrations c...

The concentrations of antibiotic residues in aquatic ecosystems are experiencing a progressive increase, which is exerting significant impacts on resident species. The species Lemna gibba and Azolla filiculoides are widely known in studies of toxicity and phytoremediation. Furthermore, these species have been observed to exhibit interesting responses to exposure to antibiotic compounds. In this study, the effects of azithromycin, ciprofloxacin, amoxicillin, cephalexin, ampicillin, and clindamycin (0.00, 2.5, 5, 7.5 mg/L) on biomass, Relative Growth Rate (RGR), percentage of area, and chlorophyll were evaluated over a period of 7 days. Biomass data were collected to calculate RGR, and daily images of each experimental unit were captured to estimate the percentage of area coverage and RGB bands for chlorophyll calculation purposes. The results revealed toxic effects of the concentrations c...

Las malezas son un problema omnipresente y costoso para los agricultores de los países en desarrollo, son consideradas plantas oportunistas y no deseadas que crecen en los campos de cultivo, afectando negativamente el rendimiento productivo. En el Perú, los estudios de la diversidad de especies y distribución de las malezas que se encuentran en la región andina son escasos. En este trabajo contribuimos con el conocimiento de las malezas presentes en los cultivos del distrito de Characato. Para ello, se colectaron malezas que crecen junto a las plantas cultivadas, se analizaron ejemplares de herbario para la identificación y el origen geográfico de las especies se estableció a través de la bibliografía especializada y base de datos digitales. Se identificaron 67 especies de malezas, agrupadas en 51 géneros y 19 familias, de las cuales 60 especies correspondieron a Eudicotiledón...