Repositório RCAAP

Universidade Federal de Sao Carlos

Financiadora de Estudos e Projetos

Financiadora de Estudos e Projetos

Universidade Federal de Minas Gerais

The design of law of Socio, Economic and Ecological Zoning of state of Mato Grosso - ZSEE / MT includes a technical and policy that directs the development and occupation of territory and regulating the use of natural resources, establishing different categories of human intervention in the environment state. This study aimed to evaluate and identify the actors (stakeholders), characterizing the conflicts, alliances and environmental demands in the context of ZSEE / MT. The approach outlined is qualitative, focusing on descriptive and exploratory, using documentary research and semi-structured interviews with 65 participants, containing a list of 7 questions in the application form in snowball for development of social networks, questioning the understanding of people and / or social groups on the theme, activities, partners and dominance of interests, conflicts, losses, benefits, demands and suggestions from the proposal ZSEE / MT. The data was written, recorded, transcribed, organized, analyzed, processed and specialized in Excel 2007 spreadsheets and UCINET 6.0. The research has a broad vision for the state of Mato Grosso and on a larger scale with reference to the place of the implementation of work groups and public hearings in the Pólos of Planning Diamantino, Tangará da Serra and Alta Floresta. As result the main highlights is identification and characterization of three definitive Stakeholders, two categories of Mercado e one in the Comunitário category that showed a higher degree of dominance of interests, influence and focus on clear analysis of the social network built. It is extremely important this study, given that there are many aspirations and realities around the ZSEE / MT to generate an infinite number of conflicts and environmental demands, which can be resolved and ease to management models state participatory, transparent and democratic, allowing thus improving the quality of life, respect the dignity and scenarios for justice and environmental sustainability of Mato Grosso and society in general.

Universidade Federal de Minas Gerais

Financiadora de Estudos e Projetos

Financiadora de Estudos e Projetos

The present study aimed to determine and compare the structure of benthic invertebrates community in two reservoirs strongly differing in relation to trophic state. The reservoirs studied were Ponte Nova and Bariri , both resulting from dams on Tietê River. Sampling was carried out as a screening of the system in 90 sampling station in each reservoir. Sampling were carried out in four periods: January, April, July and October 2001. Both reservoirs are polimictic and had an anoxic hypolimnium in January. The concentrations of nitrogen and phosphourus compounds as well as chlorophyll a indicated that Ponte Nova Reservoir is oligo-mesotropic whereas Bariri Reservoir is hipereutrophic. Benthic invertebrates were collected using a Van Veen grab (378cm²) and washed trough a sieve with 210 um open-aperture. A total of 36 were identified in Ponte Nova Reservoir and 39 in Bariri. They belonged to the Oders Ephemeroptera, Diptera, Odonata and Trichoptera (Class Insecta), besides representatives of Oligochaeta and Hirudinea Classes (Filo Anellida) and Gastropoda and Bivalvia Classes (Filo Mollusca). In Ponte Nova Reservoir the highest richness was found in the family Chironomidae (Diptera) represented by 21 taxa, followed by Oligochaeta with 10 species. On the other hand, in Bariri Reservoir Oligochaeta was the group with highest the richness represented by 16 species, followed by Chironomidae with 13 taxa. Chaoborus (Diptera) was numerically dominat in the bentic macroinvertebrate community of Ponte Nova reservoir. They correspond to 77% of the sampled organisms. In Bariri Reservoir, Branchiura sowerbyi (Oligochaeta) was the dominat organism corresponding to 47,6%. During the study period the highest densities of macroinvertebrates were found in Bariri reservoir varying between 1024.1 and 1657.0 ind.m-2, compared with 562 e 850.0 ind.m-2 in Ponte Nova. The analysis of distribuition of organisms in relation to depth showed that Chaoborus inhabited preferentially the deep region in both reservoirs, whereas Chironomidae and Mollusca, preferred the littoral region. For Oligocheta it was observed that in Ponte Nova Reservoir this group preferentially occupied shallow areas, whereas in Bariri the highest densities were found in the deepest zone. An analysis of Shannon-Wiener diversity index and the relation Oligochaeta/Chironamidae showed that the latter was best in characterizing the tropic state of studied environments.

Financiadora de Estudos e Projetos

Universidade Federal de Sao Carlos

Universidade Federal de Minas Gerais

Universidade Federal de Sao Carlos

Financiadora de Estudos e Projetos

Financiadora de Estudos e Projetos

Financiadora de Estudos e Projetos

Universidade Federal de Sao Carlos

Universidade Federal de Sao Carlos

Financiadora de Estudos e Projetos

Financiadora de Estudos e Projetos