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@Article{LacerdaSantMariSilv:2018:CaReCe,
               author = "Lacerda, Luiz Drude de and Santos, Jana{\'{\i}}na A. and Marins, 
                         Rozane V. and Silva, Francisco de Assis Tavares Ferreira da",
          affiliation = "{Universidade Federal do Cear{\'a} (UFC)} and {Universidade 
                         Estadual do Cear{\'a} (UECE)} and {Universidade Federal do 
                         Cear{\'a} (UFC)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Limnology of the largest multi-use artificial reservoir in NE 
                         Brazil: the Castanhao Reservoir, Ceara State",
              journal = "Anais da Academia Brasileira de Ci{\^e}ncias",
                 year = "2018",
               volume = "90",
               number = "2",
                pages = "2073--2096",
                month = "Aug.",
             keywords = "Hydrochemistry, hydrodynamics, nutrients, water quality, 
                         sediments, aquaculture.",
             abstract = "This work reviews the limnology of the largest multi-use reservoir 
                         in NE Brazil, the Castanhao Reservoir in Ceara State, during 5 
                         years of an extended drought when the reservoir's volume decreased 
                         from 88% to about 30%. Major physical and chemical parameters of 
                         the water column, phytoplankton community, trophic state and 
                         sediment geochemistry were monitored, as well as the impact from 
                         extensive aquaculture. Water quality of the full reservoir was 
                         maintained due to hydrodynamics, which transport nutrients to the 
                         hypolimnion of a stratified water column, rendering an 
                         oligotrophic state to the reservoir, notwithstanding the large 
                         nutrient inputs from aquaculture and irrigated agriculture. 
                         However, with the extension of the drought period, the reservoir 
                         volume reduced, decreasing water depth leading to breaking of the 
                         thermocline due to wind forcing, and mixing the entire water 
                         column. This increased tuibidity, nutrient availability and 
                         primary productivity, also changed phytoplankton functional 
                         groups. As a result, at the end of the monitoring period, when the 
                         reservoir attained its lowest volume, its trophic state became 
                         eutrophic. Under a scenario of climate change, where annual 
                         precipitation is decreasing, human uses of reservoirs in the 
                         semiarid should be very restricted to maintain water quality 
                         proper for human use.",
                  doi = "10.1590/0001-3765201820180085",
                  url = "http://dx.doi.org/10.1590/0001-3765201820180085",
                 issn = "0001-3765",
             language = "en",
           targetfile = "lacerda_limnology.pdf",
        urlaccessdate = "28 nov. 2020"
}


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