Comparison of biodiversity and distribution of planktonic diatoms, periphytic and surface sediments in six reservoirs in the southern state of São Paulo

• Grant number: 13/10314-2
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: September 01, 2013
• End date: July 31, 2017
• Field of knowledge: Biological Sciences - Ecology - Ecosystems Ecology
• Principal Investigator: Carlos Eduardo de Mattos Bicudo
• Grantee: Gisele Carolina Marquardt
• Host Institution: Instituto de Botânica. Secretaria de Meio Ambiente, Infraestrutura e Logística (São Paulo - Estado). São Paulo , SP, Brazil
• Associated research grant: 09/53898-9 - Paleolimnological reconstruction of Guarapiranga Reservoir and diagnosis of water and sediment current quality of SPMR water supply reservoirs facing their management, AP.TEM

Abstract

This proposal, first for the region to be studied, aims to assess biodiversity and spatial and temporal organization of diatoms in different compartments (periphytic habitats, planktonic and surface sediments) due to the trophic state in three reservoirs placed in the South Coast basin region (Barra, Jurupará e Cachoeira do França) and three reservoirs in the Alto Paranapanema basin (Pilão D'Água, Itapetininga and Paineiras) in the state of São Paulo. The project aims to integrate information on physical, chemical and biological characteristics of water and recent sediment, provide data on the autoecology of diatoms in tropical reservoirs and contribute to the characterization of the ecological quality of these systems. Therefore, samples of phytoplankton and periphyton (when present) will be collected in two seasons of the year (rainy and dry) and sediment samples will be sampled once because of its depositional character and integrated timescale. Sampling shall be accompanied by physical and chemical analysis of the water (temperature, pH, electrical conductivity, transparency, dissolved oxygen, dissolved inorganic carbon, series N and P, soluble reactive silica, chlorophyll-a) and sediment (NT and PT, total organic carbon and particle size). Diatoms are analyzed qualitatively and quantitatively. The data will be analyzed by means of multivariate statistical analyzes. The proposal will subsidize a larger project, providing information on diatoms' biodiversity and autoecology aiming at the development of a regional database on metropolitan region of Sao Paulo (MRSP) diatoms and future application in transfer function diatom- phosphorus model. (AU)

Scientific publications

(8)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

MARQUARDT, GISELE C.; BICUDO, CARLOS E. DE M.; ECTOR, LUC; WETZEL, CARLOS E.. Sellaphora tropicomadida sp nov., a new freshwater diatom species (Bacillariophyta) from a tropical Brazilian reservoir. BRAZILIAN JOURNAL OF BOTANY, v. 40, n. 4, p. 1051-1062, DEC 2017. (13/10314-2, 09/53898-9)

GISELE CAROLINA MARQUARDT; CARLOS EDUARDO DE MATTOS BICUDO; THELMA ALVIM VEIGA LUDWIG; LUC ECTOR; CARLOS E. WETZEL. Assembléias de diatomáceas (Bacillariophyta) em seis reservatórios tropicais no sudeste do Brasil: composição de espécies e padrões de variação temporal e espacial. Acta Limnol. Bras., v. 30, 2018-11-14. (13/10314-2, 09/53898-9)

MARQUARDT, GISELE C.; PADIAL, ANDRE ANDRIAN; BICUDO, CARLOS E. DE M.. Variance partitioning of deconstructed tropical diatom communities in reservoirs cascade. AQUATIC SCIENCES, v. 80, n. 2, APR 2018. (09/53898-9, 13/10314-2)

MARQUARDT, GISELE C.; WENGRAT, SIMONE; BICUDO, DENISE C.; WETZEL, CARLOS E.; ECTOR, LUC; BICUDO, CARLOS E. DE M.. Morphology and distribution of Encyonema angustecapitatum KRAMMER species complex (Bacillariophyceae) with description of four new species from Sao Paulo, southeast Brazil. Fottea, v. 17, n. 2, p. 164-177, 2017. (10/14658-0, 12/25366-5, 13/10314-2, 09/53898-9, 98/04955-3)

MARQUARDT, GISELE C.; COSTA, LIVIA F.; BICUDO, DENISE C.; BICUDO, CARLOS E. DE M.; BLANCO, SAUL; WETZEL, CARLOS E.; ECTOR, LUC. Type analysis of Achnanthidium minutissimum and A. catenatum and description of A. tropicocatenatum sp nov (Bacillariophyta), a common species in Brazilian reservoirs. PLANT ECOLOGY AND EVOLUTION, v. 150, n. 3, p. 313-330, NOV 2017. (13/10314-2, 09/53898-9)

MARQUARDT, GISELE C.; BLANCO, SAUL; BICUDO, CARLOS E. DE M.. Distance decay as a descriptor of the diatom compositional variation in tropical reservoirs. MARINE AND FRESHWATER RESEARCH, v. 69, n. 1, p. 105-113, 2018. (98/04955-3, 13/10314-2, 09/53898-9)

MARQUARDT, GISELE C.; BLANCO, SAUL; BICUDO, CARLOS E. DE M.. Is a rare diatom relevant for Brazilian reservoirs?. LIMNETICA, v. 40, n. 1, p. 103-116, 2021. (13/10314-2, 09/53898-9)

MARQUARDT, GISELE C.; BICUDO, CARLOS E. DE M.; ECTOR, LUC; WETZEL, CARLOS E.. Sellaphora tropicomadida sp nov., a new freshwater diatom species (Bacillariophyta) from a tropical Brazilian reservoir. Rev. bras. Bot., v. 40, n. 4, p. 12-pg., 2017-12-01. (13/10314-2, 09/53898-9)