Effect of glacial lake outburst floods on the light climate in an Andean Patagonian lake: implications for planktonic phototrophs
- Bastidas Navarro, Marcela Alejandra
- Martyniuk, Nicolás Alejandro
- Balseiro, Esteban Gabriel
- Modenutti, Beatriz Estela
DOIAbstract
Climate change is altering temperature and precipitation patterns all over the world. In North Patagonia, glaciers of the Tronador mountain (41°S) show a continuous and maintained recession, and these meltwaters are transported to Lake Mascardi via the Upper Manso River that carries a large amount of glacial clay. These suspended sediment particles cause a very sharp light longitudinal gradient along the western branch of Lake Mascardi (Tronador arm). Here we analysed changes in the water transparency along the gradient, in particular before and after a glacial lake outburst flood (GLOF) event that occurred in the headwaters that feed Lake Mascardi. The GLOF caused a significant decrease in turbidity over the years following the event. The ...
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