Poster Details
TRANSITION OF FLOW RECESSION TO RESUMPTION IN A MEDITERRANEAN INTERMITTENT RIVER
In recent years, the study of IRES is growing for the importance of these ecosystems such as the biological conservancy, biogeochemical processes and ecosystem services. Similarly, more recognition has been developed in some countries of North America, Europe and Oceania. In contrary, other regions have not been recognized at all. This study was aimed to assess the variability from the flow recession to the resumption and was carried out in a Mediterranean Intermittent River of South-central of Chile. The hydrological, environmental and taxonomical conditions in response to the transition of flow recession to resumption were tested using the TREHS Tool to characterize the various aquatic states of a temporary river. Significant variations were observed in the Lonquén River specifically in the hydrological (reduction in streamflow and increase of zero flow days), physico-chemical (velocity, temperature, dissolved oxygen, and conductivity) and taxonomical (abundance, richness, Shannon and Beta diversity) in the different aquatic states identified. Future reductions in water permanence due to the anthropogenic and future climate scenarios may lead to further contraction of habitat heterogeneity with loss of aquatic biodiversity in IRES.
Andy Banegas Medina (Primary Presenter/Author), National Autonomous University of Honduras, bbanegas@udec.cl;