Seasonal Variability of Chlorophyll in Lake Cuitzeo, México with Hyperspectral EnMAP Data

This work evaluates limnological conditions and diatom diversity in 16 tropical lakes in southern Mexico. Impacted lakes showed higher lake productivity and chemical changes (higher salinity and sulphates). Diatom species indicative of human induced degradation were identified and degradation occurring in one of the lakes was documented using paleolimnological methods. This highlighted the risk that species of restricted distribution could be facing extirpation from their natural habitats.

We evaluate the relationships between geodiversity, limnological conditions, and freshwater ostracodes from southern Mexico to Nicaragua. Geological, limnological, geochemical, and mineralogical characteristics of 76 systems reveal two main limnological regions and seven subregions. Water ionic and sediment composition are the most influential. Geodiversity strongly influences limnological conditions, which in turn influence ostracode composition and distribution.