The effect of distinct hydrologic conditions on the zooplankton community in an estuary under mediterranean climate influence
2012
Petra Muha, Teja | Chícharo, Luís | Morais, P. | Pereira, Rita | Ben-Hamadou, Radhouan | Cruz, Joana | Teodosio, Maria
Several studies have documented effects of hydrological conditions influencing fish and benthonic communities in estuaries and coastal areas, but only few evidences of freshwater discharge on zooplankton assemblages are found. The major finding of our study in an estuary under climate variability with regulated flow by dams is that increased annual flow leads to an increase in abundance and diversity of zooplankton and decrease of jellyfish blooms. This offers suitable nursery conditions with positive consequences on the food-web functioning. The ecohydrological approach of dual regulation could be useful with controlling the timing, frequency and volume of freshwater inflow by altering dams' operational efficiency, leading to healthy functional environment and optimize adaptability to climatic changes.
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