scholarly journals Ichthyofauna, Uberabinha River (Upper Paranaíba River Basin), Triangle Mineiro region, Uberlândia, Minas Gerais, Brazil

Check List ◽  
2012 ◽  
Vol 8 (6) ◽  
pp. 1085 ◽  
Author(s):  
Wagner Martins Santana Sampaio ◽  
Frederico Belei ◽  
Patrícia Giongo ◽  
Willian Lopes Silva
Keyword(s):  
Environmental Impacts ◽  
River Basin ◽  
Environmental Degradation ◽  
Fish Community ◽  
First Record ◽  
Minas Gerais ◽  
Hydroelectric Dams ◽  
Human Actions ◽  
Gill Nets

The Uberabinha River is a tributary to the Paranaíba River and, up to now, data about its ichthyofauna was still unknown. Currently the fish community suffers threats due to environmental degradation and the construction of hydroelectric dams. The present study sought to survey the ichthyofauna of the Uberabinha River. Samples were collected in November 2011 and January 2012 using gill nets, cast nets, trawls and sieves. We captured 844 individuals, totaling 36 species of fish. This is the first record of fish from the Uberabinha River and is probably an altered assemblage due to environmental impacts caused by human actions.

scholarly journals Spatial distribution of Megalancistrus barrae (Steindachner 1910), and first record on the high stretch of São Francisco basin

Check List ◽  
2015 ◽  
Vol 11 (4) ◽  
pp. 1695
Author(s):  
Gilberto N. Salvador ◽  
Gustavo R. Rosa ◽  
Gabriel Caetano Guimarães Mello ◽  
Fábio Firpe
Keyword(s):  
Spatial Distribution ◽  
River Basin ◽  
First Record ◽  
Minas Gerais ◽  
The Other ◽  
Sao Francisco River ◽  
São Francisco River ◽  
Minas Gerais State

Megalancistrus barrae is a species endemic to the São Francisco River basin that has not previously been recorded from the Upper São Francisco basin.The present work increases the known distribution of the species by reporting new collections from two different regions in the Upper São Francisco basin: one in the Pará River and the other in the São Francisco River, downstream Três Marias dam, Minas Gerais state. In addition, this study compiles distributional data on Megalancistrus barrae from museums. 

scholarly journals Diagnóstico Físico Conservacionista (DFC) como metodologia para a quantificação da degradação ambiental na bacia hidrográfica do Rio Judia - Acre

2021 ◽  
Vol 14 (2) ◽  
pp. 801
Author(s):  
Francisco Ivam Castro do Nascimento ◽  
Waldemir Lima dos Santos ◽  
Derlangela Lira da Silva ◽  
Rodrigo Otávio Peréa Serrano
Keyword(s):  
Natural Resources ◽  
Environmental Impacts ◽  
River Basin ◽  
Environmental Degradation ◽  
Environmental Planning ◽  
Correct Identification ◽  
Hydrographic Basin ◽  
Anthropic Activity ◽  
The Mean ◽  
Degree Of Degradation

A degradação ambiental de uma bacia hidrográfica pode ser resultado de uma série de ações geradas pela atividade antrópica, podendo ser analisadas de forma sistêmica através do diagnóstico físico conservacionista, para diagnosticar os impactos ambientais negativos e ajudar no planejamento ambiental das bacias hidrográficas. Neste trabalho foi aplicada a metodologia do Diagnóstico físico conservacionista (DFC) na bacia hidrográfica do Rio Judia, localizada em Rio Branco – Acre. Para isso, os parâmetros foram adaptados para a realidade local, sendo aplicados por meio de técnicas de geoprocessamento, a fim de identificar e quantificar o grau de degradação da bacia hidrográfica entre os anos de 2006 à 2019. Os resultados apontaram que, o médio curso obteve o maior grau de degradação, 23. O baixo curso obteve valor 22 e o auto curso valor 21. Todos os três cursos da bacia hidrográfica tiveram valores elevados de degradação, indicando que recursos naturais como solo, floresta e água encontram-se ameaçados por atividades antrópicas como: pecuária, uso indiscriminado da água e ocupações irregulares. Conclui-se que a metodologia do DFC possibilitou a correta identificação quanto ao grau de degradação da bacia do Rio Judia, apontando os parâmetros que mais contribuíram para o atual cenário ambiental. Physical Conservationist Diagnosis (PCD) as a methodology for quantifying environmental degradation in the Rio Judia river basin - Acre A B S T R A C TThe environmental degradation of a hydrographic basin can be the result of a series of actions generated by anthropic activity, which can be analyzed in a systemic way through the physical conservationist diagnosis, to diagnose the negative environmental impacts and help in the environmental planning of the hydrographic basins. In this work, the methodology of physical conservationist diagnosis (PCD) was applied in the Judia River basin, located in Rio Branco - Acre. For this, the parameters were adapted to the local reality, being applied through geoprocessing techniques, in order to identify and quantify the degree of degradation of the watershed between 2006 and 2019. The results showed that the mean course obtained the highest degree of degradation, 23. The low course obtained value 22 and the auto course value 21. All three courses of the watershed had high degradation values, indicating that natural resources such as soil, forest and water are threatened by anthropic activities such as livestock, indiscriminate use of water and irregular occupations. It was concluded that the PCD methodology allowed the correct identification of the degree of degradation of the Judia River basin, pointing out the parameters that most contributed to the current environmental scenario.Keywords: degree and degradation, environment, hydrographic Basin

scholarly journals First record of Pygocentrus piraya (Cuvier 1819) (Characiformes: Serrasalmidae), a new predatory species introduction in the middle and lower Doce River basin

Check List ◽  
2012 ◽  
Vol 8 (4) ◽  
pp. 787
Author(s):  
Frederico Belei ◽  
Wagner Martins Santana Sampaio ◽  
Thiago José Millani ◽  
Alessandro Trazzi ◽  
Jorge Abdala Dergam
Keyword(s):  
River Basin ◽  
Native Species ◽  
Fish Community ◽  
First Record ◽  
Species Introduction ◽  
First Report ◽  
Doce River

This is the first report of the occurrence of P. piraya in the Doce River. The introduction of this species adversely affects the fish community, mainly through competition and predation of native species.

scholarly journals ESTUDO DA QUALIDADE DA ÁGUA DO CÓRREGO DA CASCATA E/OU TABUINHA DE PRESIDENTE PRUDENTE

2018 ◽  
Vol 10 (Especial) ◽  
pp. 191-196
Author(s):  
Carolina Gomes de Melo ◽  
Danielle Elis Garcia Furuya ◽  
Ireli Cristina Luz ◽  
Lucas Flávio Thomaz ◽  
Nayara de Jesus Figueiredo ◽  
...  
Keyword(s):  
Water Quality ◽  
Population Growth ◽  
Natural Resources ◽  
Environmental Impacts ◽  
River Basin ◽  
Environmental Degradation ◽  
Natural Resource ◽  
Water Availability ◽  
Rapid Population Growth

The conservation of the watercourses are essential because they enable the accomplishment of activities that need this natural resource and determine the characteristics of the microbasin in which they are inserted. Rapid population growth requires increased use of natural resources, such as water in streams. In addition to the use, incorrect treatment and environmental impacts are increasingly decreasing the water availability of rivers and tributaries in each river basin. The microcatchment of the Cascata stream and / or Tabuinha shows signs of environmental degradation, since the depth and quantity of water in the stream is scarce. In this context, the objective of this study was to analyze parameters that determine the water quality of the stream, as well as to analyze the interference of a tannery.

Iron ore mining promotes iron enrichment in sediments of the Gualaxo do Norte River basin, Minas Gerais State, Brazil

2013 ◽  
Vol 71 (9) ◽  
pp. 4177-4186 ◽  
Author(s):  
Aline Sueli de Lima Rodrigues ◽  
Guilherme Malafaia ◽  
Adivane Terezinha Costa ◽  
Hermínio Arias Nalini Júnior
Keyword(s):  
River Basin ◽  
Iron Ore ◽  
Minas Gerais ◽  
Iron Enrichment ◽  
Minas Gerais State

A new species of Crossodactylodes (Anura: Leptodactylidae) from Minas Gerais, Brazil: first record of genus within the Espinhaço Mountain Range

Zootaxa ◽  
2013 ◽  
Vol 3731 (4) ◽  
pp. 552 ◽  
Author(s):  
IZABELA M. BARATA ◽  
MARCUS T.T. SANTOS ◽  
FELIPE S.F. LEITE ◽  
PAULO C.A. GARCIA
Keyword(s):  
New Species ◽  
First Record ◽  
Minas Gerais ◽  
Mountain Range ◽  
A New Species

scholarly journals Rediscovery of Vanzolini’s Bald-Faced Saki, Pithecia vanzolinii Hershkovitz, 1987 (Primates, Pitheciidae): first record since 1956

Check List ◽  
2017 ◽  
Vol 13 (1) ◽  
pp. 2048 ◽  
Author(s):  
André V. Nunes ◽  
José E. Serrano-Villavicencio
Keyword(s):  
River Basin ◽  
First Record ◽  
The State ◽  
Extractive Reserve ◽  
Unknown Species ◽  
Local Inhabitant

We report the rediscovery of Pithecia vanzolinii in the upper Juruá River Basin, in the State of Acre, Brazil. An individual was collected after being hunted by a local inhabitant of an extractive community in the Riozinho da Liberdade Extractive Reserve. This is the first record of this species in the last 60 years and highlights the importance of intensifying studies of this almost unknown species.

scholarly journals Digenea of Hoplias intermedius and Hoplias malabaricus (Actinopterygii, Erythrinidae) from upper São Francisco River, Brazil

2015 ◽  
Vol 24 (2) ◽  
pp. 129-135 ◽  
Author(s):  
Danielle Priscilla Correia Costa ◽  
Cassandra Moraes Monteiro ◽  
Marilia Carvalho Brasil-Sato
Keyword(s):  
River Basin ◽  
Feeding Habits ◽  
Minas Gerais ◽  
New Host ◽  
Hoplias Malabaricus ◽  
Parasitic Fauna ◽  
Sao Francisco River ◽  
São Francisco River ◽  
New Location

A total of 103 specimens of Hoplias intermedius (Günther, 1864) and 86 specimens of H. malabaricus (Bloch, 1794) from the upper São Francisco River, State of Minas Gerais were collected between April 2011 and August 2013, and their parasitic fauna were investigated. Four species of Digenea were found: metacercariae of Austrodiplostomum sp., and Ithyoclinostomum sp.; and adult specimens of Phyllodistomum spatula Odhner, 1902, and Pseudosellacotyla lutzi (Freitas, 1941) Yamaguti, 1954. The prevalence of the metacercariae was higher than that of the adult digeneans of erythrinids from the upper São Francisco River as a result of piscivorous feeding habits of these adult erythrinids. The presence of metacercariae and adult digeneans indicate that they act as intermediate and definitive hosts, respectively, in their biological cycles. Hoplias intermedius is a new host for the four species of Digenea, and the São Francisco River basin is a new location for the known geographical distributions of P. spatula and P. lutzi.

Trophic structure of a fish community along environmental gradients of a subtropical river (Paraitinga River, Upper Tietê River Basin, Brazil)

Hydrobiologia ◽  
2007 ◽  
Vol 598 (1) ◽  
pp. 373-387 ◽  
Author(s):  
Katharina Eichbaum Esteves ◽  
Ana Valéria Pinto Lobo ◽  
Marcos Daniel Renó Faria
Keyword(s):  
River Basin ◽  
Fish Community ◽  
Trophic Structure ◽  
Environmental Gradients ◽  
Tietê River

scholarly journals Ameerega flavopicta (Lutz, 1925): first dart-poison frog (Anura: Dendrobatidae) recorded for the state of São Paulo, Brazil, with commetns on its adertisement calls and taxonomy

Check List ◽  
2012 ◽  
Vol 8 (3) ◽  
pp. 502 ◽  
Author(s):  
Lucas Borges Martins ◽  
Ariovaldo Antonio Giaretta
Keyword(s):  
First Record ◽  
Minas Gerais ◽  
Sao Paulo ◽  
The State ◽  
São Paulo ◽  
Advertisement Calls ◽  
Poison Frog ◽  
Rocky Habitats

Ameerega flavopicta is a dart-poison frog (Dendrobatidae) widely distributed throughout rocky habitats in the Brazilian states of Minas Gerais, Goiás, Tocanthins, Pará, and Maranhão. Here we repoert for the first record of a dendrobatid frog in the State of São Paulo, Brazil, based on individuals of A. flavopicta found in the Municipality of Pedregulho, and also describe the advertisement calls of a male from this population. A taxonomic discussion is provided.

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