Mixing patterns and deep chlorophyll a maxima in an eutrophic tropical lake in western Mexico

Caballero, Margarita; Vázquez, Gabriela

doi:10.1007/s10750-020-04367-y

Cited by 9 publications

(11 citation statements)

References 29 publications

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“…1A). LAT is a warm monomictic lake with a maximum depth of 28 m (Hernández-Morales et al, 2011;Caballero et al, 2016;Caballero and Vázquez, 2020). The climate in this region is temperate, the warmest months span from April to June (21.4±0.7°C) and the coldest from December to February (17.5±0.3°C).…”

Section: Study Areamentioning

confidence: 99%

“…Local meteorological data gathered since 1988 showed a clear warming trend with consistent warmer-than-average conditions since the year 2000 (Caballero et al, 2016). Recent studies in LAT detected a 1°C rise in the hypolimnion between 2011 and 2015 (Caballero and Vázquez, 2020). Studies performed in 2006 and 2009-2010 reported Chlorophyta and Bacillariophyta as dominant groups in the phytoplankton community, including the presence -but not dominance -of different Microcystis species (Hernández-Morales et al, 2011;Caballero et al, 2016).…”

Section: Introductionmentioning

confidence: 96%

“…Significant changes in nutrient loading and the temperature regime affect phytoplankton community structure and biomass (Planas and Paquet, 2016;Caballero and Vázquez, 2020). Consequently, there is a shift in the species composition of phytoplankton communities towards dominance by cyanobacterial species (Kosten et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, monitoring the presence and abundance of M. aeruginosa in lakes and reservoirs in Mexico from which the water is used for agricultural, recreational and human consumption purposes is crucial to avoid health risks, especially if these waterbodies are prone to eutrophication. Lake Alberca de Tacámbaro (LAT) is a deep tropical crater lake in Mexico characterized by a circulation period in winter and stratification the rest of the year (Hernández-Morales et al, 2011;Caballero et al, 2016;Caballero and Vázquez, 2020). Local meteorological data gathered since 1988 showed a clear warming trend with consistent warmer-than-average conditions since the year 2000 (Caballero et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Seasonal variation of <em>Microcystis aeruginosa</em> and factors related to blooms in a deep warm monomictic lake in Mexico

et al. 2021

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The occurrence of cyanobacterial blooms has increased globally over the last decades, with the combined effect of climate change and eutrophication as its main drivers. The seasonal dynamic of cyanobacterial blooms is a well-known phenomenon in lakes and reservoirs in temperate zones. Nevertheless, in the tropics, most studies have been performed in shallow and artificial lakes; therefore, the seasonal dynamic of cyanobacterial blooms in deep and eutrophic tropical lakes is still under research. We studied the seasonal variation of the phytoplankton community and the factors associated with Microcystis aeruginosa blooms along the water column of Lake Alberca de Tacámbaro, a warm monomictic crater lake located in Mexico, during 2018 and 2019. According to previous studies performed in 2006 and 2010, this lake was mesotrophic-eutrophic, with Chlorophyta and Bacillariophyta as the dominant groups of the phytoplankton community. During 2018 and 2019, the lake was eutrophic and occasionally, hypertrophic, a phenomenon likely associated with the increase of farmland area around the lake. The dominant species was M. aeruginosa, forming blooms from the surface to 10 m depth in winter, in the hypolimnion in spring and summer, and along the full water column in autumn. These findings suggest that M. aeruginosa in Lake Alberca de Tacámbaro displays seasonal and spatial population dynamics. Total phosphorus, dissolved inorganic nitrogen, water temperature and photosynthetically active radiation were the environmental factors related to M. aeruginosa blooms. Our results suggest that the changes in the structure of the phytoplankton community through time, and M. aeruginosa blooms in Lake Alberca de Tacámbaro, are mainly related to changes in land use from forest to farmland in areas adjacent to the lake, which promoted its eutrophication in the last years through runoffs. Comparative studies with other deep and eutrophic lakes will allow us to gain a deeper understanding of the dynamic of cyanobacterial blooms in natural and artificial water reservoirs strongly stressed by human activities.

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Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Seasonal variation of <em>Microcystis aeruginosa</em> and factors related to blooms in a deep warm monomictic lake in Mexico

et al. 2021

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“…Mexico (Caballero and Vazquez 2020) and USA (Tomasko et al 2020). It is summarized that over 75% of the closed water bodies (e.g., lakes, ponds and reservoirs) in Africa, Asia and Latin America have deteriorated largely and encountered some extents of eutrophication since the 1990s (UN-Water 2018).…”

Section: Introductionmentioning

confidence: 99%

Purification Effect Evaluation of the Designed New Volcanic Soil Adsorption Material Containing Bioreactor for Eutrophic Water Treatment

Ding

Zhai

et al. 2021

Preprint

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To investigate the purification effect of the new adsorption material containing bioreactor and the critical role of non-culture (VBNC) bacteria in eutrophication ecosystem, major water quality parameters and microbial community were determined and analyzed in prepared eutrophic water for 2 years monitoring. The results showed that removal rates of total phosphorus (TP), total nitrogen (TN), chlorophyll-a (Chl-a) and chemical oxygen demand (COD) ranged of 90.7% - 95.9%, 84.5% - 92.4%, 87.9% - 95.8% and 68.3% - 82.7%, respectively, indicating the designed bioreactor possessed high efficiency in eutrophic water treatment. Although the bioreactor had been operated for 2 years, water from treatment group was more clearer and odorless than control group, exhibiting the long service life of the bioreactor. Stopping operation in August caused the removal rates of major water quality parameters significantly decrease (p < 0.05), revealing stopping operation and high temperature in Summer exerted dual effect on the bioreactor, whereas the impact could be minimized when the bioreactor was running. According to most probable number (MPN) method, the total bacteria under +Rpf treatment were higher than under -Rpf treatment, implying Rpf could resuscitate VBNC bacteria in eutrophication ecosystem. Nine VBNC bacteria were isolated based on the BLAST results of 16S rRNA gene, and these bacteria might contribute to eutrophic water treatment based on their functions, such as phosphorus-collecting and denitrification. Those results provided new insights for engineering technology innovation and had benefit in eutrophic water treatment.

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Nitrogen is unlikely to consistently limit primary productivity in most tropical lakes

Fadum

Hall

2023

Ecosphere

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Despite mounting evidence that tropical lakes may experience an array of phytoplankton nutrient limitation regimes, references to low‐latitude lakes being predominantly nitrogen limited remain common in the literature. To assess the current understanding of nutrient limitation regimes in tropical lakes, we performed a literature review with the following objectives: First, quantify and summarize observations of nitrogen (N), phosphorus (P), and colimitation in the collected studies. Second, identify common drivers of tropical nutrient limitation regimes. Third, provide literature‐informed recommendations for future research efforts into nutrient limitation of tropical lakes. We report that not only is N not the dominant limiting nutrient in the reviewed lakes, but tropical lakes exhibit a wide range of nutrient limitation regimes, and there is often considerable heterogeneity of the dominant limiting nutrient within an individual lake. This heterogeneity is driven largely by seasonal patterns of water column stratification and precipitation, land use and land cover (LULC), and the interaction of these system characteristics with lake morphology. To accurately characterize nutrient limitation in tropical aquatic ecosystems, assessments need to include sampling across space and time in order to capture within‐lake spatial heterogeneity and both inter‐ and intra‐annual temporal variation. Whenever possible, both inferential and experimental approaches should be used in concert to determine nutrient limitation due to methodological limitations.

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Mixing patterns and deep chlorophyll a maxima in an eutrophic tropical lake in western Mexico

Cited by 9 publications

References 29 publications

Seasonal variation of <em>Microcystis aeruginosa</em> and factors related to blooms in a deep warm monomictic lake in Mexico

Seasonal variation of <em>Microcystis aeruginosa</em> and factors related to blooms in a deep warm monomictic lake in Mexico

Purification Effect Evaluation of the Designed New Volcanic Soil Adsorption Material Containing Bioreactor for Eutrophic Water Treatment

Nitrogen is unlikely to consistently limit primary productivity in most tropical lakes

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