Ensamblaje Fitoplanctónico De La Laguna De Cajititlán, Jalisco Durante El Año 2015

Ocampo-Alvarez, Héctor; Lara-González, Martha Alicia; Choix-Ley, Francisco Javier; Becerril-Espinosa, Amayaly; Ayón-Parente, Manuel; Enciso-Padilla, Ildefonso; Juárez-Carrillo, Eduardo

doi:10.32870/e-cucba.v0i13.146

Cited by 2 publications

(3 citation statements)

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“…We can see that the monitoring points located in Lake Cajititlán increase the average TSI of the whole subbasin. Lake Cajititlán has been described as one of the most polluted water reservoirs in the country, with critical eutrophication levels reported over the years [21,25,52,53]. The San Marcos Lake subbasin (Figure 6B) had an average TSI of 91.6.…”

Section: Average Tsimentioning

confidence: 99%

“…In this study, ammonia was shown to be positively correlated with agricultural land, which covers 27.4% of the Verde River-Santa Rosa Dam subbasin's surface. Eutrophication has become an ongoing subject for researchers in different locations across the state of Jalisco, such as in Chapala Lake [8,22], Verde River [20,55], and Lake Cajititlán [21,25,52,53], among others; however, little effort has been made to standardize the use of a specific methodology to evaluate eutrophication in Jalisco's freshwater bodies. While eutrophication has been a relevant matter for discussion in the area, a methodological approach to consistently assess the trophic state of surface waters has not been proposed; hence, it might be hard for public and private stakeholders to allocate financial resources and prioritize remedial action plans to improve water quality.…”

Section: Average Tsimentioning

confidence: 99%

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A GIS Methodology to Determine the Critical Regions for Mitigating Eutrophication in Large Territories: The Case of Jalisco, Mexico

et al. 2021

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Inadequate management practices for solid waste and wastewater are some of the main causes of eutrophication globally, especially in regions where intensive livestock, agricultural, and industrial activities are coupled with inexistent or ineffective waste and wastewater treatment infrastructure. In this study, a methodological approach is presented to spatially assess the trophic state of large territories based on public water quality databases. The trophic state index (TSI) includes total nitrogen, total phosphorus, chlorophyll A, chemical oxygen demand, and Secchi disk depth values as water quality indicators. A geographical information system (GIS) was used to manage the spatiotemporal attributes of the water quality data, in addition to spatially displaying the results of TSI calculations. As a case study, this methodological approach was applied to determine the critical regions for mitigating eutrophication in the state of Jalisco, Mexico. Although a decreasing trend was observed for the TSI values over time for most subbasins (2012–2019), a tendency for extreme hypereutrophication was observed in some regions, such as the Guadalajara metropolitan area and the Altos region, which are of high economic relevance at the state level. A correlation analysis was performed between the TSI parameters and rainfall measurements for all subbasins under analysis, which suggested a tendency for nutrient wash-off during the rainy seasons for most subbasins; however, further research is needed to quantify the real impacts of rainfall by including other variables such as elevation and slope. The relationships between the water quality indicators and land cover were also explored. The GIS methodology proposed in this study can be used to spatially assess the trophic state of large regions over time, taking advantage of available water quality databases. This will enable the efficient development and implementation of public policies to assess and mitigate the eutrophication of water sources, as well as the efficient allocation of resources for critical regions. Further studies should focus on applying integrated approaches combining on-site monitoring data, remote sensing data, and machine learning algorithms to spatially evaluate the trophic state of territories.

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Section: Average Tsimentioning

confidence: 99%

Section: Average Tsimentioning

confidence: 99%

A GIS Methodology to Determine the Critical Regions for Mitigating Eutrophication in Large Territories: The Case of Jalisco, Mexico

et al. 2021

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“…From this standpoint, indigenous microalgae are preferred nowadays for biorefinery and bioremediation purposes because they are already adapted to the environmental conditions prevailing in a specific geographical location [4], Chlorella sp., Scenedesmus sp., and Chlamydomonas sp. microalgae were isolated from Cajititlán Lagoon-Jalisco, Mexico-a water body with high phytoplanktonic diversity [19]. The purpose of their isolation was to develop and propose a bioprocess to reuse and valorize the energy and nutrient content of TVs through biomass and high-valuable metabolite production with sustainable use in different economic sectors.…”

Section: Introductionmentioning

confidence: 99%

Mixotrophic growth regime as a strategy to develop microalgal bioprocess from nutrimental composition of tequila vinasses

Choix

Ramos-Ibarra

Mondragón-Cortéz

et al. 2021

Bioprocess Biosyst Eng

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The selection of a suitable growth regime can increase the physiological performance of microalgae and improve bioprocess based on these microorganisms from agro-industrial residues. Thus, this study assessed the biotechnology capacity-biomass production, biochemical composition, and nutrient uptake-from tequila vinasses (TVs) as the nutrient source of three indigenous microalgae-Chlorella sp., Scenedesmus sp., and Chlamydomonas sp.-cultured under heterotrophic and mixotrophic conditions. The results demonstrated that under the mixotrophic regime, the three microalgae evaluated reached the highest nitrogen uptake, biomass production, and cell compound accumulation. Under this condition, Chlorella sp. and Scenedesmus sp. showed the highest nutrient uptake and biomass production, 1.7 ± 0.3 and 1.9 ± 0.3 g L −1 , respectively; however, the biochemical composition, mainly carbohydrates and proteins, varied depending on the microalgal strain and its growth regime. Overall, our results demonstrated the biotechnological capacity of native microalgae from TVs, which may vary not only depending on the microalgal strain but also the culture strategy implemented and the characteristics of the residue used, highlighting-from a perspective of circular bio-economy-the feasibility of implementing microalgal bioprocess to reuse and valorize the nutrimental composition of TVs through biomass and high-valuable metabolite production, depicting a sustainable strategy for tequila agro-industry in Mexico.

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Ensamblaje Fitoplanctónico De La Laguna De Cajititlán, Jalisco Durante El Año 2015

Abstract: Palabras clave: Cuerpo de agua dulce, Eutrofización, Cianobacterias tóxicas, Cylindrospermopsis sp., Microcystis sp. ENSAMBLAJE FITOPLANCTÓNICO DE LA LAGUNA DE CAJITITLÁN, JALISCO DURANTE EL AÑO 2015 ENERO-JUNIO/AÑO 7/2020/NÚMERO 13/5-15

Cited by 2 publications

References 5 publications

A GIS Methodology to Determine the Critical Regions for Mitigating Eutrophication in Large Territories: The Case of Jalisco, Mexico

A GIS Methodology to Determine the Critical Regions for Mitigating Eutrophication in Large Territories: The Case of Jalisco, Mexico

Mixotrophic growth regime as a strategy to develop microalgal bioprocess from nutrimental composition of tequila vinasses

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