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. 

Spatial distribution of Biomphalaria mollusks at São Francisco River Basin, Minas Gerais, Brazil, using geostatistical procedures

Acta Tropica ◽  
2009 ◽  
Vol 109 (3) ◽  
pp. 181-186 ◽  
Author(s):  
Ricardo J.P.S. Guimarães ◽  
Corina C. Freitas ◽  
Luciano V. Dutra ◽  
Carlos A. Felgueiras ◽  
Ana C.M. Moura ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
River Basin ◽  
Minas Gerais ◽  
Sao Francisco River ◽  
São Francisco River

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.

scholarly journals Evaluation of Eta Model Rainfall Forecasts at São Francisco River Basin in Minas Gerais, Brazil

2016 ◽  
Vol 38 (2) ◽  
pp. 15
Author(s):  
R. M. G. VIEIRA ◽  
C. P. DERECZYNSKI ◽  
S. C. CHOU ◽  
J. L. GOMES ◽  
A. C. PAIVA NETO
Keyword(s):  
River Basin ◽  
Minas Gerais ◽  
Sao Francisco River ◽  
São Francisco River ◽  
Eta Model

scholarly journals Limnoperna fortunei (Dunker, 1857) (Mollusca, Bivalvia, Mytilidae): first record in the São Francisco River basin, Brazil

Check List ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 1846 ◽  
Author(s):  
Newton P. U. Barbosa ◽  
Fabiano A. Silva ◽  
Márcia Divina De Oliveira ◽  
Miguel Arcanjo dos Santos Neto ◽  
Marcela David De Carvalho ◽  
...  
Keyword(s):  
River Basin ◽  
First Record ◽  
Northeastern Brazil ◽  
Limnoperna Fortunei ◽  
Sao Francisco River ◽  
Central Brazil ◽  
São Francisco River ◽  
The Government ◽  
First Time ◽  
Uruguay River

Limnoperna fortunei (Dunker, 1857) is a small mytilid native to Southeast Asia. It was introduced in South America in early 1990 and has dispersed from Argentina to central Brazil, and until 2014 has been restricted mainly to the Paraná and Uruguay river basins. The present note reports the occurrence of Limnoperna fortunei for the first time in the São Francisco River basin in northeastern Brazil. The establishment of L. fortunei in these regions will require close attention from the government and also by society.

Gamidactylus piranhus sp. nov. (Copepoda, Vaigamidae) from the nasal fossae of serrasalmid fishes from the Três Marias Reservoir, Upper São Francisco River, Minas Gerais State, Brazil

2008 ◽  
Vol 53 (3) ◽  
Author(s):  
Vernon Thatcher ◽  
Michelle Santos ◽  
Marilia Brasil-Sato
Keyword(s):  
New Species ◽  
San Francisco ◽  
Type Species ◽  
Antennal Segment ◽  
Minas Gerais ◽  
Sao Francisco River ◽  
São Francisco River ◽  
Minas Gerais State ◽  
Simple Seta ◽  
Três Marias Reservoir

AbstractGamidactylus piranhus sp. nov. (Copepoda, Vaigamidae) from the nasal fossae of “San Francisco piranha”, Pygocentrus piraya (Cuvier, 1819) and.White piranha. Serrasalmus brandtii (Lütken, 1875) is described. The new species is similar to the type species of the genus, Gamidactylus jaraquensis Thatcher et Boeger, 1984, but differs from it in the following respects: the cephalothorax is shorter, the free thoracic segments are usually longer, leg 5 is reduced to a simple seta and a spine on the second antennal segment is lacking. Gamidactylus bryconis Varella, 1995 and Gamidactylus hoplius Varella et Malta, 1996, do not closely resemble the new species because they are much larger and both present leg 5 reduced to a double seta.

scholarly journals First record of Corbicula largillierti (Philippi 1844) in the Paraíba River Basin and potential implications from water diversion of the São Francisco River

2014 ◽  
Vol 14 (4) ◽  
Author(s):  
Evaldo de Lira Azevêdo ◽  
José Etham de Lucena Barbosa ◽  
Teofânia H. D. A. Vidigal ◽  
Marcos Callisto ◽  
Joseline Molozzi
Keyword(s):  
River Basin ◽  
Short Communication ◽  
First Record ◽  
Water Diversion ◽  
Mato Grosso ◽  
Sao Francisco River ◽  
São Francisco River ◽  
Ecological Problems ◽  
First Time ◽  
Semi Arid

Corbicula largillierti is a native mollusk from China. In Brazil, this species was first recorded in the Pantanal of Mato Grosso. This short communication reports the occurrence of C. largillierti for the first time in the Paraíba river basin (Brazilian semi-arid), and also considers the risk of introduction of other molluscs invaders in this basin due to the diversion of water from the São Francisco River. Densities of individuals ranged from 33 to 65 ind.m-2 (maximum values of 484 ind.m-2) in coarse sediment (gravel, 2-4 mm). The diversion of waters from the São Francisco river can lead to the introduction of new species, enhancing ecological problems in the Paraiba river basin.

Brasergasilus bifurcatus sp. nov. (Copepoda, Ergasilidae, Abergasilinae) from the gills and nasal fossae of serrasalmid fishes from the Três Marias Reservoir, Upper São Francisco River, Minas Gerais State, Brazil

2007 ◽  
Vol 52 (3) ◽  
Author(s):  
Michelle Santos ◽  
Vernon Thatcher ◽  
Marilia Brasil-Sato
Keyword(s):  
New Species ◽  
Distal Segment ◽  
Minas Gerais ◽  
Terminal Segment ◽  
Sao Francisco River ◽  
Genital Complex ◽  
São Francisco River ◽  
Minas Gerais State ◽  
Três Marias Reservoir

AbstractBrasergasilus bifurcatus sp. nov. (Copepoda, Ergasilidae, Abergasilinae) is described. Specimens of the new species were collected from the gills and nasal fossae of the serrasalmid fishes, known as “piranhas”, Pygocentrus piraya (Cuvier, 1819) and “pirambebas”, Serrasalmus brandtii (Lütken, 1875). The fishes were netted in the Três Marias Reservoir (18°12′59″S, 45°17′34″W) of the upper São Francisco River, Minas Gerais State, Brazil. The new species differs from its congeners by the following characters: the specific setation on the antennule; the terminal barb of the antenna; the deeply bifurcate distal segment of the mandible; the chalice-shaped genital complex; a conspicuous external indentation of the second segment of the first endopod and a very short terminal segment of the first exopod.

scholarly journals Fish fauna of the Pandeiros River, a region of environmental protection for fish species in Minas Gerais state, Brazil

Check List ◽  
2015 ◽  
Vol 11 (1) ◽  
pp. 1507 ◽  
Author(s):  
Udson Santos ◽  
Priscilla Caroline Silva ◽  
Lucas Caetano Barros ◽  
Jorge Abdala Dergam
Keyword(s):  
Environmental Protection ◽  
Fish Species ◽  
Sustainable Use ◽  
Fish Fauna ◽  
Minas Gerais ◽  
Sao Francisco River ◽  
São Francisco River ◽  
Minas Gerais State ◽  
Peacock Bass ◽  
A New Species

The Area of Environmental Protection of the Pandeiros River is the largest unit for sustainable use in Minas Gerais state, Brazil. The Pandeiros Wetland in the lower part of this river is considered a nursery for most migratory fish species of the São Francisco River and it is currently threatened by the introduced peacock-bass Cichla piquiti (Kullander & Ferreira, 2006). In this study, a list of fish species from the Pandeiros River was developed and compared with data for populations from other regions in the São Francisco basin. The presence of a new species record for the São Francisco River basin in the Pandeiros, and the particular local biotic and abiotic conditions of that river, support its recognition as an important conservation unit within the basin.

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