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Social and financial aspects of the artisanal fisheries of Middle Sao Francisco River, Minas Gerais, Brazil

de Camargo, SAF; Petrere, M.
Fonte: Blackwell Science Publicador: Blackwell Science
Tipo: Artigo de Revista Científica Formato: 163-171
ENG
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The presence or absence of motorized boats, partnerships and multispecies catches characterize the fisheries of Sao Francisco River, Minas Gerais, Brazil. Fishing activity based on 109 interviews, carried out in the wet (high water: February and March) and dry (low water: July and August) seasons, with professional fishermen are described. Aiming to identify the fishery income components, a covariance model was proposed, with the income as the response variable, related to the factors: fishing ground, use of motorized or paddle boat; seasonality; presence of fishing assistant, and the following covariates: capture in weight in the week Frier to the interview, fisherman experience in yrs; and distance (km) travelled for fishing. The results indicated that the main contributions to income were the absence of an engine (because of high price of the fuel), the absence of a partner (because of low capture) and the amount of fish caught by the fishermen.

Neoechinorhynchus pimelodi sp.n. (Eoacanthocephala, Neoechinorhynchidae) parasitizing Pimelodus maculatus Lacépède, "mandi-amarelo" (Siluroidei, Pimelodidae) from the basin of the São Francisco river, Três Marias, Minas Gerais, Brazil

Brasil-Sato,Marília de Carvalho; Pavanelli,Gilberto Cezar
Fonte: Sociedade Brasileira de Zoologia Publicador: Sociedade Brasileira de Zoologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/1998 EN
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Neoechinorhynchus pimelodi sp.n. is described as the first record of Acanthocephala in Pimelodus maculatus Lacépède. 1803, collected in the São Francisco river, Três Marias, Minas Gerais. The new species is distinguished from other of the genus by the three circles of hooks of different sizes, and by the eggs measurements. The hooks measuring 100-1 12 (105), 32-40 (36) and 20-27 (23) in length in the males and 102-142 (129), 34-55 (47) and 27-35 (29) in length in the females for the anterior, middle and posterior circles. The eggs measuring 15-22 (18) in length and 12-15 (14) in width, with concentric layers of texture smooth, enveloping the acanthor.

Ergasilussalmini sp. nov. (Copepoda: Ergasilidae) a branchial parasite of "dourado", Salminus franciscanus from the upper São Francisco River, Brazil

Thatcher,Vernon E.; Brasil-Sato,Marilia C.
Fonte: Sociedade Brasileira de Zoologia Publicador: Sociedade Brasileira de Zoologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/09/2008 EN
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Ergasilus salmini sp. nov. a branchial parasite of the "dourado", Salminus franciscanus Lima & Britski, 2007, from the upper São Francisco river, Minas Gerais State, Brazil, is described based on female specimens. The new species has a serrate, curved seta on the first exopod as do most of the known South American species of the genus. Other than that, it does not closely resemble any known species of this genus. Many of the known ergasilids have head, and first two thoracic segments completely fused to form a cephalothorax. In the new species, the head is incompletely fused, the first thoracic segment is fused, but thoracic segment two is free. Ergasilus hydrolycus Thatcher, Boeger & Robertson, 1984, also has a free second thoracic segment but in that species the head is completely fused and the third abdominal segment is the longest. In the new species, the third segment is the shortest of the three. Also, the new species is smaller averaging 691 x 207 µ m compared to 784 x 278 µ m for E. hydrolycus. The latter species has a two-segmented fourth endopod whereas in the new species this structure is three-segmented. In addition, the new species is from a different host and a separate river system.

Reproduction of the surubim catfish (Pisces, Pimelodidae) in the São Francisco River, Pirapora Region, Minas Gerais, Brazil

Brito,M.F.G.; Bazzoli,N.
Fonte: Universidade Federal de Minas Gerais, Escola de Veterinária Publicador: Universidade Federal de Minas Gerais, Escola de Veterinária
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/10/2003 EN
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The reproductive biology of the surubim, P. coruscans of the São Francisco River, in the Pirapora region was studied from December/98 to November/99. Reproduction occurred between October and January with high frequency of fishes in the advanced ripening/mature and spawned/spent stages along with higher values of the gonadosomatic index. Macroscopic and microscopic analyses indicated that P. coruscans presents total spawning. The reproductive period coincided with highest rainfall and water turbidity values in the region. The smallest male captured had a total length of 63.3cm and the smallest female 92.0cm in total length. The largest male in the maturation stage was recorded to be 97.0cm and the largest female 144.1cm in total length. Surubim were more frequently captured than females, at a proportion of approximately one female to three males. The gonadosomatic, hepatosomatic, stomach repletion, and coelomic fat indexes, as well as the condition factor were related to stages of the reproductive cycle.

Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil)

Martins,Afonso Henriques; Almeida,Débora Fernandes; Santos,Luciano Rodrigues Gomes; Moreira,Thiago Toussaint Marcelino
Fonte: Escola de Minas Publicador: Escola de Minas
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2014 EN
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Sediment contamination by metals is very common and frequently researched worldwide with the objective of assessing the environmental impact of these contaminants. The bulk metal concentration in sediments is not enough for assessing toxicity and therefore, needs additional research and assays. To estimate the potentially bioavailable fraction of the metals in the sediment, the acid-volatile sulfides / simultaneously extracted metals (AVS/SEM) method was used. Seven samples in duplicate were collected from the São Francisco River and its tributary, near a zinc metallurgical plant in the city of Três Marias (MG). The AVS/SEM results suggest that, although the bulk metal concentrations are above TEL (Threshold Effects Level: A chemical concentration above which some adverse effect to biota is expected), samples from the São Francisco River presented relatively low potential for bioavailability (uncertain toxicity). These results should be taken into consideration before deciding about contaminated sediment management.

Zooplankton community composition and some limnological aspects of an oxbow lake of the Paraopeba River, São Francisco River Basin, Minas Gerais, Brazil

Sampaio,Edson Vieira; López,Cristiane Machado
Fonte: Instituto de Tecnologia do Paraná - Tecpar Publicador: Instituto de Tecnologia do Paraná - Tecpar
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2000 EN
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Some limnological aspects of Lake Massacará (adjoining the Paraopeba River, São Francisco River Basin) were studied during two periods of the hydrological cycle. Water transparency was equally low during both the periods. During high water, thermal stratification was recorded, with a clinograde oxygen profile; pH was slightly acid, and conductivity was higher near the bottom. Concentrations of inorganic carbon and ammonia, and rates of primary production were higher than during the low water period. During the latter period, complete mixing occurred, with a clinograde oxygen profile; pH was slightly acid, and conductivity unvarying with depth. Higher concentrations of nitrate were found than during high water. With regard to the zooplankton communities, higher density and species richness of organisms occurred during high water. Copepods and rotifers were most numerous during both periods. The taxa identified consisted of 17 rotifers, four copepods, six cladocerans, five protozoans, and two macroinvertebrates. The most abundant species were Thermocyclops minutus, Keratella cochlearis, K. lenzi, and Trichocerca capucina during high water, and Thermocyclops minutus and Conochilus unicornis during low water.

Digenea in the surubim Pseudoplatystoma corruscans (Spix and Agassiz, 1829) (Siluriformes: Pimelodidae) of the upper São Francisco River, State of Minas Gerais, Brazil

Corrêa,Renata de Fátima da Silva Stravalli; Brasil-Sato,Marilia de Carvalho
Fonte: Instituto de Tecnologia do Paraná - Tecpar Publicador: Instituto de Tecnologia do Paraná - Tecpar
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2008 EN
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96.05%
The specimens of surubim, Pseudoplatystoma corruscans (Spix and Agassiz, 1829), an important food fish with high commercial value in the Upper São Francisco River, were collected downstream from the Três Marias Dam, in the municipality of Três Marias, State of Minas Gerais, Brazil. Thirty-six individuals were examined and among the parasites, four species of Digenea were found: Witenbergia witenbergi Vaz, 1932 and Tylodelphys sp. (metacercarie), both with prevalence above 10%, followed by Acanthostomum gnerii (Szidat, 1958) and Acanthostomum sp.. The total length of the hosts did not influence the parasite prevalence. Witenbergia witenbergi occurred only in female hosts and the abundance of Tylodelphys sp. was higher in the males. These Digenea were recorded for the first time in P. corruscans, and their known geographic distribution has been expanded to the São Francisco Basin in Brazil.

Food resources sustaining the fish fauna in a section of the upper São Francisco River in Três Marias, MG, Brazil

Alvim,M. C. C.; Peret,A. C.
Fonte: Instituto Internacional de Ecologia Publicador: Instituto Internacional de Ecologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/05/2004 EN
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With the purpose of determining the principal food resources responsible for maintaining the fishery yield in a section of the São Francisco River, 6 sampling of the fish fauna were made downstream from the Três Marias Dam, from September 1996 to July 1997. A total of 1,127 individuals of 35 species were captured, using gillnets with mesh sizes varying from 3 to 16 cm. The stomach contents of 33 species were examined in order to determine their diets. Five trophic guilds were established, in the following order of importance: ilyophagous, herbivorous, piscivorous, terrestrial invertebrates feeders, and aquatic invertebrates feeders. The resources sustaining the fish fauna were mainly of allochthonous origin. The ichthyonenosis appears to be mainly dependent on the detritus chain. The ciliary forest and seasonal flooding pulses are the main suppliers of food for the fish fauna.

Biodiversity assessment of benthic macroinvertebrates along a reservoir cascade in the lower São Francisco river (northeastern Brazil)

Callisto,M.; Goulart,M.; Barbosa,F. A. R.; Rocha,O.
Fonte: Instituto Internacional de Ecologia Publicador: Instituto Internacional de Ecologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/05/2005 EN
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In order to verify the cascade-system effect in benthic macroinvertebrate communities, and the implications for policy making and proposals for conservation and sustainable use of the lower portion of São Francisco river basin (Bahia State, Brazil), a three-reservoir cascade system including two stretches downstream were studied during dry (June, 1997) and rainy (March, 1998) periods. The dominant groups found were Mollusca (Melanoides tuberculata), Oligochaeta, and Chironomidae larvae. Low Shannon-Wiener and Pielou index values were found, but with no significant difference between the sampling periods. However, density and taxonomic richness were significantly different (t(0.05; 31) = -2.1945; p < 0.05; e t(0.05; 31) = -3.0600; p < 0.01) between the sampling periods, with a reduction in the number of taxaand macroinvertebrate abundance during the rainy period. An increasing gradient in benthic macroinvertebrate community structures was noted along the reservoir cascade from the first reservoir (Apolônio Sales), followed by a decrease downstream from the third reservoir of the system (Xingó). Despite the negative consequences of rapid proliferation of dams, which have caused widespread loss of freshwater habitats, the reservoir cascade system promoted an increase in benthic macroinvertebrate diversity...

Distribution of populations of broad-snouted caiman (Caiman latirostris, Daudin 1802, Alligatoridae) in the São Francisco River basin, Brazil

Filogonio,R.; Assis,VB.; Passos,LF.; Coutinho,ME.
Fonte: Instituto Internacional de Ecologia Publicador: Instituto Internacional de Ecologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/11/2010 EN
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We surveyed populations of the broad-snouted caiman, Caiman latirostris, throughout the São Francisco River basin, from Três Marias reservoir, State of Minas Gerais, to the river delta, at the boarder of Sergipe and Alagoas states. We registered the occurrence of crocodilians in 61% of all surveyed localities (n = 64), in which the presence of C. latirostris was confirmed in 44% of the surveyed sites. Caimans occurred in both lentic and lotic habitats, although there was a preference for small dams, oxbow lakes and wetlands. Despite the hunting pressure and human impact on natural habitats, our results indicate that the populations of C. latirostris in the São Francisco basin are not fragmented.

Weight-of-evidence on environmental impact assessment of metal contaminated sediments in the São Francisco river (Três Marias - Minas Gerais - Brazil): a case study

Almeida,DF.; Martins,AH.; Tundisi,JG.
Fonte: Instituto Internacional de Ecologia Publicador: Instituto Internacional de Ecologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/11/2011 EN
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The weight-of-evidence - WOE approach was used to assess the environmental impact of sediments contaminated by metals in the São Francisco river and one of its tributaries, Consciência creek, both affected by anthropic activities, in the region of Três Marias (Minas Gerais/Brazil). The assessment provided support to a risk management decision. The WOE was based on bulk metal analysis, AVS-SEM assays, elutriate tests, ecotoxicity assays, benthic community assessment and a comparison for the reference area. Brazilian legislation and other available literature were used as criteria to evaluate the lines of evidence. All samples, except for the reference area, presented some contamination. However, geochemical testing for bioavailability studies showed that toxicity is unlikely as suggested by the chemical results. Ecotoxicity and benthic structure studies provided further information to support decision making. Metal acid volatile sulfide formation mechanisms were identified, which can eventually attenuate metal toxicity observed. The removal of active sources of contamination (for example, from tailings dumps) associated with Monitoring Natural Recovery could be sufficient to eventually lessen the risk of the biota in São Francisco river sediments.

Decomposição do folhedo em reflorestamento ciliar na bacia hidrográfica do rio São Francisco, Minas Gerais; Litter decomposition in a gallery forest revegetation on São Francisco river basin, Minas Gerais State

Fonte: UFLA - Universidade Federal de Lavras Publicador: UFLA - Universidade Federal de Lavras
Tipo: Artigo de Revista Científica Formato: text/html
PT
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This work analyzed the litter decomposition rates registered in riparian native and reforested forest fragments, to test the hypothesis that the decomposition is dependent on the structural and the floristic composition of the vegetation. The work was carried out in the upper São Francisco River Basin from September 2001 to August 2002. The decomposition rate was measured by quantifying the monthly mass loss of 12 litterbags (20 x 20 cm) containing five grams of dry leaf in each one and located randomly in the two fragments analyzed. Mass loss kinetics was faster in the native forest, reaching the T50% in 5 months (02/2002) while loss in the reforested area was 30% during the same period. This could be reflecting the successional stage characteristic of each fragment and the local climate since the conditions at the native forest (close canopy, less luminosity, higher humidity and cooler constant temperatures) favor the proliferation of microorganisms. This can also be due to differences in floristic composition since the reforested area presents reduced species diversity, with a dominance of Bauhinia variegata L. In addition, the native riparian forest fragment presented higher levels of organic matter content which could contribute to accelerate the litter decomposition rates in this fragment.; Neste trabalho...

Riparian vegetation affected by bank erosion in the Lower São Francisco River, Northeastern Brazil

Holanda, Francisco Sandro Rodrigues; Santos, Laura da Costa Galvão; Santos, Cícero Marques dos; Casado, Ana Patrícia Barreto; Pedrotti, Alceu; Ribeiro, Genésio Tâmara
Fonte: Sociedade de Investigações Florestais Publicador: Sociedade de Investigações Florestais
Tipo: Artigo de Revista Científica
EN
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Mudanças no regime hidrológico no baixo curso do rio São Francisco, localizado na Região Nordeste do Brasil, trouxeram impactos negativos, como a ameaça à fauna e à flora em um dos 25 "hotspots" do mundo para a conservação da biodiversidade, em razão da construção de usinas hidroelétricas e retiradas de água para irrigação em perímetros de irrigação públicos e privados. Foram estudados remanescentes da vegetação ciliar associados com a desestabilização dos barrancos do rio, em seis fragmentos de mata, por meio de levantamento florístico e histórico de degradação dos ecossistemas. Foi também realizado o cálculo do Fator de Segurança (FS), objetivando compreender a estabilidade dos taludes, relacionando com textura do solo e cobertura vegetal. Foi identificado um número total de 51 famílias botânicas, distribuídas em 71 gêneros e 79 espécies, predominantemente das famílias Mimosaceae, Myrtaceae e Fabaceae. A fragmentada vegetação ciliar, predominantemente dominada por espécies secundárias, sofreu forte pressão antropogênica pelos desmatamentos, mineração e irrigação, sob um avançado processo erosivo nas suas margens. Se faz necessária a revegetação com espécies que suportam a ação das ondas contra os barrancos...

Riparian vegetation affected by bank erosion in the Lower São Francisco River, Northeastern Brazil

Holanda,Francisco Sandro Rodrigues; Santos,Laura Galvão da Cunha; Santos,Cícero Marques dos; Casado,Ana Patrícia Barreto; Pedrotti,Alceu; Ribeiro,Genésio Tâmara
Fonte: Sociedade de Investigações Florestais Publicador: Sociedade de Investigações Florestais
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/04/2005 EN
Relevância na Pesquisa
106.11%
Changes in the hydrological regime of the Lower São Francisco River, located in Northeastern Brazil have brought negative environmental impacts, jeopardizing the flora and fauna of a global biodiversity hotspot, due to implementation of hydroelectric power dams and surface water withdrawal for irrigation in public and private perimeters. Remnants of the riparian stratum associated to the riverbank destabilization in six fragments were studied by surveying trees, shrubs, herbs, and aquatic species. The calculation of the Factor of Safety (FS) was performed in order to understand the riverbank's stability related to soil texture and vegetation cover. An overall number of 51 botanic families distributed in 71 genera and 79 species were recorded, predominantly from the families Mimosaceae, Myrtaceae, and Fabaceae. The fragmented riparian vegetation is mostly covered by secondary species under a strong anthropogenic impact such as deforestation, mining and irrigation, with an advanced erosion process in the river margins. Strong species that withstand the waves present in the river flow are needed to reduce the constant landslides that are mainly responsible for the river sedimentation and loss of productive lands. A lack of preservation attitude among the local landholders was identified...

Spatial patterns of rural poverty: an exploratory analysis in the São Francisco River Basin, Brazil

Torres,Marcelo de O.; Vosti,Stephen A.; Maneta,Marco P.; Wallender,Wesley W.; Rodrigues,Lineu N.; Bassoi,Luis H.; Young,Julie A.
Fonte: Nova Economia Publicador: Nova Economia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/04/2011 EN
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This paper uses recently released município-level data on rural poverty in Brazil to identify and analyze spatial patterns of rural poverty in the São Francisco River Basin (SFRB). Moran's I statistics are generated and used to test for spatial autocorrelation, and to prepare cluster maps that locate rural poverty 'hot spots' and 'cold spots'. Our results indicate that poverty reduction policies in the SFRB should take into account the spatial distribution of poverty. Not only is poverty in the SFRB clustered spatially, but the bulk of the basin's poor resides in municípios that comprise the poverty 'hot spots' we identified. These clusters did not correspond to state-level boundaries (the political delineations often used to measure poverty and to manage poverty reduction programs), so scope may exist for geographically refocusing poverty reduction efforts to make them more efficient. Maybe more importantly the results set the stage for the use of spatial econometrics for a future multivariate analysis of rural poverty in the basin.

Parasitic community of Fransciscodoras marmoratus (Reinhardt, 1874) (Pisces: Siluriformes, Doradidae) from the upper São Francisco river, Brazil

Santos,M. D.; Brasil-Sato,M. C.
Fonte: Instituto Internacional de Ecologia Publicador: Instituto Internacional de Ecologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2006 EN
Relevância na Pesquisa
96.08%
One hundred and thirteen specimens of Franciscodoras marmoratus (Reinhardt, 1874) were collected in the upper São Francisco River (18° 12' 32" S, 45° 15' 41" W, state of Minas Gerais) between September, 1999 and January, 2004 to investigate their parasite fauna. From this total, 45 (39.8%) were afflicted by at least one parasite species. The parasitic richness consisted of six species represented by Hirudinea (n = 20), Monogenoidea (n = 25), Eucestoda (n = 55), Nematoda (n = 1, n = 2) and Acanthocephala (n = 41) found in the dry and wet periods making a total of 144 specimens. Proteocephalus renaudi Chambrier & Vaucher, 1994 was the only species with prevalence higher than 10% and a typical aggregate distribution pattern. The prevalence, intensity and abundance of P. renaudi were not influenced by the total length or sex of the hosts or by the collection periods. The relative condition factor indicated that the health of the P. renaudi hosts was not significantly affected in relation to fish not infected by parasites. The fish stocked in tanks before necropsy were opportunistically infested by Lernaea cyprinacea Yashuv, 1959. The various parasites found indicate that F. marmoratus is omnivorous and a potential definitive host. The parasite species...

The construction of a revitalization program for the São Francisco River watershed; A construção de um programa de revitalização na bacia do Rio São Francisco

Machado, Antonio Thomaz da Mata
Fonte: Universidade de São Paulo. Instituto de Estudos Avançados Publicador: Universidade de São Paulo. Instituto de Estudos Avançados
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; ; Formato: application/pdf; application/pdf
Publicado em 01/01/2008 POR; ENG
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A construção de um Programa de Revitalização da bacia do Rio São Francisco está em curso. Um decreto presidencial de 2001 e os Planos de Recursos Hídricos das bacias dos rios São Francisco e Velhas introduziram critérios e conceitos inovadores na definição de propostas para a recuperação hidroambiental de bacias hidrográficas. A polêmica em torno das obras de transposição de águas do Rio São Francisco e da implementação da lei das águas na bacia determina o processo de construção do programa. Ações e obras centradas em coleta, interceptação e tratamento de esgotos sanitários estão em andamento e alcançam grande extensão da bacia.; The construction of a Program for Rehabilitation of river basin San Francisco is underway. A presidential decree of 2001 and the Plans of Water Resources of the river basins of the San Francisco and Velhas, introduced innovative concepts and criteria in the definition of proposals for the hidroambiental recovery of basins. The controversy surrounding the translation of waters of river of San Francisco and the implementation of the law of water in the basin determines the process of the programme. Activities and works focusing on the collection, interception and treatment of sewage are in progress and achieve great extension of the basin.

Os remeiros do São Francisco na literatura

Neves, Zanoni
Fonte: Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas Publicador: Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; Formato: application/pdf
Publicado em 01/01/2003 POR
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Ao longo de dois séculos, os remeiros contribuíram para a formação e o desenvolvimento do sistema econômico regional no Médio São Francisco. Por sua importância social, foram mencionados por viajantes e técnicos em seus relatos sobre a região. Mas o trabalho, as crenças, a posição social dos remeiros podem ser conhecidos também por intermédio da literatura de ficção: estão presentes no conto e no romance regionalistas. Assim, utilizamos essas fontes para dar continuidade ao nosso trabalho de interpretação iniciado no livro Navegantes da integração: os remeiros do rio São Francisco, no qual utilizamos sobretudo o recurso metodológico de entrevistas. No presente artigo, os relatos e a literatura de ficção são confrontados com as informações do livro acima mencionado.; Along two centuries, the rowers have contributed for the formation and development of the regional economic system of the Sao Francisco River. Due to their social importance, they have been mentioned by travelers and technicians in their reports on the region. However, their work, beliefs and social position may be known through fiction literature: they are part of the regional short stories and novels. Thus, these sources have been used in the continuity of our interpretation work started in the book Navegantes da integração: os remeiros do Rio São Francisco (Ed. UFMG) (Sailors of integration: the rowers of the Sao Francisco River - Publisher UFMG)...

POLITICAL, ECONOMICAL AND SOCIAL DYNAMICS OF SÃO FRANCISCO RIVER AND ITS VALLEY; A dinâmica política, econômica e social do rio São Francisco e do seu vale

Camelo Filho, José Vieira
Fonte: Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas Publicador: Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; Artigo Avaliado pelos Pares Formato: application/pdf
Publicado em 30/04/2011 POR
Relevância na Pesquisa
96.17%
O rio São Francisco sempre foi um canal importante de ligação entre o Nordeste, Sudeste e Centro-Oeste, feita através da navegação fluvial. Estrategicamente, esse rio e seus afluentes contribuíram para o controle e o povoamento do interior, onde, ao longo da história, constituíram-se os grandes latifúndios e os pequenos minifúndios, ambos responsáveis pelo atraso econômico e social do Vale. Sua economia, até a primeira metade do século XX, foi ancorada na pecuária extensiva e na agricultura de subsistência. A posse ou acesso à terra, para a maioria da população, continua sendo um grande desafio para a sociedade. Nos últimos 50 anos, a água do Velho Chico tornou-se a maior riqueza do Vale e a matéria-prima mais importante para o seu desenvolvimento, que, efetivamente, iniciou com a geração de energia em Paulo Afonso. A partir das décadas de 1980 e 1990, o processo de irrigação se intensificou, em particular, visando a produção de frutas nos Perímetros de Irrigação de Petrolina e Juazeiro, Oeste da Bahia, e com Projeto Jaíba e Pirapora, em Minas Gerais. Contudo, nos últimos anos, o Projeto de Transposição de água do São Francisco para outras bacias hidrográficas do semi-árido vem ganhando destaque.; The São Francisco River was always an important linking channel among Brazil Northeast...

Povos indígenas e a luta em defesa do rio São Francisco; Indigenous Peoples and the Struggle in Defense of the São Francisco River

Arruda, Rinaldo Sérgio Vieira; PUC-SP
Fonte: Editora de Livros IABS Publicador: Editora de Livros IABS
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ;
Publicado em 23/12/2013 POR
Relevância na Pesquisa
96.24%
O objetivo deste artigo é refletir sobre como os povos indígenas habitantes do semiárido, especialmente da região do rio São Francisco, atuam em defesa da preservação deste rio em um momento em que o agronegócio avança e grandes obras como barragens e a construção do canal para a transposição de suas águas estão em execução, transformando a relação que estes possuem com aquele manancial e gerando vários conflitos socioambientais naquela região do país. Os Estudos de Impacto Ambiental – EIA - não levam em conta a dinâmica daqueles povos originários com a terra onde vivem e sua relação com o rio São Francisco. Baseados em levantamento bibliográfico sobre os conflitos advindos destes projetos, concluímos que tais empreendimentos repetem os erros do passado em relação a estes povos indígenas.; The objective of this article is to reflect about the indigenous people who live in the São Francisco river area and how they act in defense of its preservation. In a time that agribusiness is becoming stronger and dams and the canal to divert that river are in construction, many social and environmental conflicts have arisen in that region. The Environment Impact Studies do not take in account the dynamic of those indigenous peoples with their land and how they relate to the São Francisco river. Based on bibliographical research about the conflicts that come with those projects...