Limnological and ecological methods: approaches, and sampling strategies for middle Xingu River in the area of influence of future Belo Monte Power Plant

Tundisi, José Galízia; Matsumura‐Tundisi, Takako; Tundisi, J. G.; Faria, C R L; Abe, Donato Seiji; Blanco, Francisco Peña; Filho, José Rodrigues de Souza; Campanelli, Leonardo Contri; Galli, Corina Sidagis; Teixeira-Silva, V; Degani, R. M.; Soares, F S; Gatti, Pedro

doi:10.1590/1519-6984.03614bm

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…The location and characteristics of the surroundings of the monitored points are presented in Tundisi et al (2015). All stations were located at backwaters places and near-shore regions, where conditions are regionally more representative and homogeneous, away from transient areas such as point source mixing zones.…”

Section: Study Area and Samplesmentioning

confidence: 99%

Spatial patterns of water quality in Xingu River Basin (Amazonia) prior to the Belo Monte dam impoundment

et al. 2015

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The Xingu River, one of the most important of the Amazon Basin, is characterized by clear and transparent waters that drain a 509.685 km 2 watershed with distinct hydrological and ecological conditions and anthropogenic pressures along its course. As in other basins of the Amazon system, studies in the Xingu are scarce. Furthermore, the eminent construction of the Belo Monte for hydropower production, which will alter the environmental conditions in the basin in its lower middle portion, denotes high importance of studies that generate relevant information that may subsidize a more balanced and equitable development in the Amazon region. Thus, the aim of this study was to analyze the water quality in the Xingu River and its tributaries focusing on spatial patterns by the use of multivariate statistical techniques, identifying which water quality parameters were more important for the environmental changes in the watershed. Data sampling were carried out during two complete hydrological cycles in twenty-five sampling stations. The data of twenty seven variables were analyzed by Spearman's correlation coefficients, cluster analysis (CA), and principal component analysis (PCA). The results showed a high auto-correlation between variables (> 0.7). These variables were removed from multivariate analyzes because they provided redundant information about the environment. The CA resulted in the formation of six clusters, which were clearly observed in the PCA and were characterized by different water quality. The statistical results allowed to identify a high spatial variation in the water quality, which were related to specific features of the environment, different uses, influences of anthropogenic activities and geochemical characteristics of the drained basins. It was also demonstrated that most of the sampling stations in the Xingu River basin showed good water quality, due to the absence of local impacts and high power of depuration of the river itself.Keywords: watershed, limnology, water quality, Amazonian rivers, hydropower dam. Padrões espaciais de qualidade de água na Bacia do Rio Xingu (Amazônia) anteriores a barragem de Belo MonteResumo O rio Xingu, um dos mais importantes rios que constituem a bacia amazônica, é caracterizado por águas claras e transparentes que drenam uma bacia hidrográfica de 509,685 km 2 com distintas condições hidrológicas, ecológicas e pressões antrópicas ao longo de seu percurso. Assim como nas demais bacias hidrográficas da Amazônia, os estudos no Xingu são raros. A eminente construção da Usina hidrelétrica de Belo Monte, a qual alterará as condições ambientais na bacia, demanda também a realização de estudos que gerem informações relevantes e que forneçam subsídios para um desenvolvimento mais equilibrado e igualitário região amazônica. Desta maneira, o objetivo deste trabalho foi analisar a qualidade de água no rio Xingu e em seus tributários focando em padrões espaciais na área de estudo pelo uso de técnicas de estatística multivariada, identificando quais parâmetros são ...

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Section: Study Area and Samplesmentioning

confidence: 99%

Spatial patterns of water quality in Xingu River Basin (Amazonia) prior to the Belo Monte dam impoundment

et al. 2015

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The climate change potential effects on the run-of-river plant and the environmental and economic dimensions of sustainability

Brito

Cruz

Vianna

2021

Renewable and Sustainable Energy Reviews

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Cladocera from the Upper Xingu River Basin with the description of a new genus of the Chydoridae (Crustacea: Branchiopoda: Anomopoda)

Sousa

Elmoor-Loureiro

2018

Zootaxa

500

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In this study, we investigated cladocerans (Crustacea: Branchiopoda) collected in six water bodies from the Upper Xingu River Basin, Central Brazil. In total, we found eighteen species belonging to three families. Furthermore, we also describe a new and highly specialized genus of Chydoridae. Kisakiellus aweti gen. nov., sp. nov. which shares some morphological traits with members of Chydorinae, particularly the exopodite of the fourth limb armed with seven setae. The new genus bears several autapomorphies and does not exhibit any clear affinities with any other genus of the subfamily. Apparently, K. aweti gen. nov., sp. nov. has a positive rheotactic behavior and the morphological characters related to this habitat trait are discussed. Many regions of the Upper Xingu River Basin are still in need of faunal inventories, a fact that gains more relevance due to the high potential for cryptic biodiversity. So, it is possible that an increase on the sampling effort in this basin will have a positive impact on the known diversity of Cladocera.

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Limnological and ecological methods: approaches, and sampling strategies for middle Xingu River in the area of influence of future Belo Monte Power Plant

Cited by 3 publications

References 13 publications

Spatial patterns of water quality in Xingu River Basin (Amazonia) prior to the Belo Monte dam impoundment

Spatial patterns of water quality in Xingu River Basin (Amazonia) prior to the Belo Monte dam impoundment

The climate change potential effects on the run-of-river plant and the environmental and economic dimensions of sustainability

Cladocera from the Upper Xingu River Basin with the description of a new genus of the Chydoridae (Crustacea: Branchiopoda: Anomopoda)

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