[Música] Bueno estamos en el lago redón dentro del Parque Nacional de aigas tortas y lago San maurici

Introduction to the research project within the National Parks network focusing on changes in aquatic flora biodiversity due to global factors.

Sampling and Research Focus

• Lakes in the Pyrenees historically pristine, facing global changes like temperature rise, droughts, and species introductions affecting biodiversity.

• Study indicators show environmental changes; now assessing aquatic flora as crucial biodiversity components reflecting significant environmental variations.

• Current research involves revisiting lakes after 30 years, diving to assess plant diversity changes indicating environmental shifts.

Changes in Biodiversity Over Time

Repeating studies from three decades ago to evaluate changes in aquatic plant communities as indicators of environmental impacts.

Assessing Plant Diversity

• Examining abundance of plant species in shallow lakes with light penetration, noting variations based on water chemistry and basin factors.

• Repeating studies to observe community movements relative to pristine conditions, providing insights into global change impacts.

Impact of Global Changes on Aquatic Flora

Preliminary results indicate unexpected shifts in species abundance, distribution, and composition due to various influencing factors.

Observations and Implications

• Some species show trends of increase or decrease based on nutrient deposition or other influences like bioturbation by fish.