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	Provedor de dados Biological Sciences (1) Anais da ABC (AABC) (1) BABT (1) Neotropical Ichthyology (1) Autor Agostinho,Angelo Antonio (1) Bittencourt-Oliveira,Maria do Carmo (1) Bonecker, Claudia Costa; UEM (1) Dias, Juliana Déo; UEM (1) LIRA,CAMILA C.S (1) Lansac-Tôha, Fábio Amodêo; UEM (1) Lira,Giulliari Alan da Silva Tavares de (1) MEDEIROS,PEDRO H.A. (1) Moura,Ariadne do Nascimento (1) NETO,IRAN E. LIMA (1) Pelicice,Fernando Mayer (1) Takahashi, Erica Mayumi; UEM (1) Thomaz,Sidinei Magela (1) Velho, Luiz Felipe Machado; UEM (1) Mais... Palavra-chave Tropical reservoir (4) 2.00.00.00-6 Ciências Biológicas zooplankton (1) Aquatic plants (1) Brazil (1) Dry and rainy periods (1) Dry and rainy periods ecologia zooplankton (1) Eutrophication (1) Habitat structure (1) Phytoplankton (1) Predictive ecology (1) Sediment reuse (1) Spatial variation (1) Structure (1) Variability (1) Water quality modelling (1) Water-sediment interaction (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2020 (1) 2009 (2) 2008 (1) País Brazil (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Modelling the impact of sediment management on the trophic state of a tropical reservoir with high water storage variations Anais da ABC (AABC) LIRA,CAMILA C.S; MEDEIROS,PEDRO H.A.; NETO,IRAN E. LIMA. Abstract Eutrophication of lakes has affected society in many regions, particularly in water scarce environments where: i) low runoff reduces the self-purification potential of water bodies; ii) water supply relies on surface reservoirs, which are susceptible to nutrient enrichment. This work presents an assessment of the impact of the silted sediment management on the trophic status of a tropical surface reservoir with intense temporal variability of water storage. A complete mixing model describing the total phosphorus budget in the water and sediments was used, based on semi-empirical formulations. The sediment reuse as soil fertilizer has been proposed to increase productivity in small scale agriculture, which should also enhance the water quality by... Tipo: Info:eu-repo/semantics/article Palavras-chave: Water-sediment interaction; Sediment reuse; Eutrophication; Water quality modelling; Tropical reservoir. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100601 Simple relationships to predict attributes of fish assemblages in patches of submerged macrophytes Neotropical Ichthyology Pelicice,Fernando Mayer; Thomaz,Sidinei Magela; Agostinho,Angelo Antonio. Submerged macrophytes play an important role in structuring habitats and, therefore, in determining patterns of aquatic biodiversity. Because these plants are widespread in shallow areas of many Neotropical reservoirs, the present work investigated if variables related to habitat structure, measured in patches of submerged macrophytes (Egeria densa and E. najas), can be used to predict fish assemblage attributes (fish density and species richness). Based on patch characteristics at fine spatial extents (macrophyte patches within reservoir arms), we considered plant biomass, volume and proportional volume (i.e. percentage of macrophyte volume in the water column) as potential predictors. Fish and macrophytes were sampled with a 1-m² throw trap in littoral... Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquatic plants; Habitat structure; Predictive ecology; Variability; Tropical reservoir. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000400001 Spatial variations in the zooplankton community from the Corumbá Reservoir, Goiás State, in distinct hydrological periods - DOI: 10.4025/actascibiolsci.v31i3.4132 Biological Sciences Takahashi, Erica Mayumi; UEM; Lansac-Tôha, Fábio Amodêo; UEM; Dias, Juliana Déo; UEM; Bonecker, Claudia Costa; UEM; Velho, Luiz Felipe Machado; UEM. This study evaluated the spatial variations in species richness and abundance of zooplankton over a hydrological cycle, and also verified the influence of physical and chemical water variables and chlorophyll-α concentrations on the abundance of these organisms. The tested hypothesis was that the zooplankton community presents higher species richness in lotic environments and higher abundance in lentic ones. One hundred forty species were identified, distributed among rotifers (88), testate amoebae (35), cladocerans (13) and copepods (4). Higher values of species richness and abundance were observed during the dry period. During both hydrological periods, the copepods presented high abundance values, due to the contribution of young stages,... Palavras-chave: 2.00.00.00-6 Ciências Biológicas zooplankton; Tropical reservoir; Spatial variation; Dry and rainy periods ecologia zooplankton; Tropical reservoir; Spatial variation; Dry and rainy periods. Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4132 Structure and dynamics of phytoplankton community in the Botafogo reservoir-Pernambuco-Brazil BABT Lira,Giulliari Alan da Silva Tavares de; Bittencourt-Oliveira,Maria do Carmo; Moura,Ariadne do Nascimento. The aim of the present study was to investigate the structure and dynamics of the phytoplankton in the Botafogo reservoir-PE-Brazil. Phytoplankton assemblages were identified from current literature and density was estimated using an inverted microscope. Concurrently to the sampling of biotic variables, measurements of abiotic parameters, such as water temperature, dissolved oxygen and pH, were determined using field probes and transparency was determined with a Secchi disk. Total phosphorus and total nitrogen concentrations were determined in laboratory. A total of 24 taxa were identified. Chlorophyta presented the greatest number of species. Species diversity in the reservoir was low throughout the study period. Principal component analysis revealed that... Tipo: Info:eu-repo/semantics/article Palavras-chave: Structure; Tropical reservoir; Phytoplankton; Brazil. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200029 Registros recuperados: 4 Primeira ... 1 ... Última

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