Publications by authors named "Jose Luis Cereijo"
The formation of natural lakes is a process that takes place over thousands of years, although the volumetric formation depends on hydrological and climatological phenomena, reaching a stationary hydraulic regime, the evolution of hydrochemistry is more complex and obeys not only phenomena of stoichiometry and chemical kinetics but also diffusion processes. Depending on the depth of the lakes, the anoxization process originating from the bottom is the first phase of the lake's methanogenesis. For this, the course of many thousands of years is necessary, so the studies carried out in the lakes are limited to the current knowledge of the state in which they are, without being able to have real information in this process of methanogenesis.
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- Plastic debris is widely found in freshwater ecosystems, but assessing its distribution is challenging due to a lack of consistent data.
- A standardized survey of 38 lakes and reservoirs identified that plastic pollution is present in all studied locations, indicating these ecosystems are significantly affected by plastic contamination.
- The study reveals that urbanized lakes and large bodies of water with specific characteristics are particularly susceptible to high levels of plastic, stressing the need to consider these freshwater areas in pollution management efforts.
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- Understanding ecological processes is crucial for addressing the impacts of climate change and human activities on lakes, which are vital for many ecosystem services.
- Harmful cyanobacterial blooms, driven by nutrient pollution and climate-related stressors, pose significant threats to lake health and functionality.
- The European Multi Lake Survey (EMLS), conducted in summer 2015, standardized the collection and analysis of comprehensive data from 369 lakes across Europe, promoting consistency in research and potentially serving as a model for future large-scale ecological studies.
The old lignite mines of As Pontes and Meirama are located in the northwest of Spain, an approximate distance of 80 km between them. Both ended their extractive activity at the end of 2007; the respective mining pits began to be filled at the beginning of 2008. The filling process, enabled by the deviation of nearby rivers, differed between the two cases, taking approximately 4 and a half years to completely fill the 547-hm hole at As Pontes and 8 years and 2 months to fill the 146-hm hole at Meirama.
View Article and Find Full Text PDFInsight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing attention is given to other classes, such as neurotoxins (e.
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