Comparative larval ontogeny of two fish species (Characiformes and Siluriformes) endemic to the São Francisco River in Brazil

In the Neotropics, a large proportion of fish communities of large rivers use floodplain as habitats for feeding, reproduction, and refuge. An evaluation was made of the effects of extended dry periods on the species richness, abundance and local extinction of fish species in three marginal lagoons in the middle São Francisco River, southeastern Brazil. The studied lagoons fail to receive river floods during the study period (1994-1996). A gradual reduction in richness and abundance was observed in all lagoons. Migratory fish species had the highest probability to become extinct in the two lagoons that remained with large water volume. Species tolerant to low levels of dissolved oxygen had the lowest probability of local extinction in the lagoon showing an abrupt reduction in water volume. Similar changes to those observed in the current study are likely to occur in the floodplains if dams would be constructed in this segment of the river. Adequate water releases from Três Marias reservoir, located upstream, should be considered as a management tool for producing episodic flooding on the marginal lagoons of the region.

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Comparative cytogenetics between three Characidae fish species from the São Francisco River basin

Caryologia ◽

10.1080/00087114.2007.10589548 ◽

2007 ◽

Vol 60 (1-2) ◽

pp. 64-68 ◽

Cited By ~ 7

Author(s):

Peres Wellington Adriano Moreira ◽

Luiz Antônio Carlos Bertollo ◽

Orlando Moreira-Filho

Keyword(s):

River Basin ◽

Fish Species ◽

Comparative Cytogenetics ◽

Sao Francisco River ◽

São Francisco River

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Evaluation of trace element levels in muscles, liver and gonad of fish species from São Francisco River of the Paraná Brazilian state by using SR-TXRF technique

Applied Radiation and Isotopes ◽

10.1016/j.apradiso.2010.06.001 ◽

2010 ◽

Vol 68 (12) ◽

pp. 2202-2207 ◽

Cited By ~ 13

Author(s):

F.R. Espinoza-Quiñones ◽

A.N. Módenes ◽

S.M. Palácio ◽

N. Szymanski ◽

R.A. Welter ◽

...

Keyword(s):

Trace Element ◽

Fish Species ◽

Sao Francisco River ◽

Brazilian State ◽

São Francisco River ◽

Trace Element Levels

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

Check List ◽

10.15560/11.1.1507 ◽

2015 ◽

Vol 11 (1) ◽

pp. 1507 ◽

Cited By ~ 4

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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Continental ichthyofauna from the Paraíba do Norte River basin pre-transposition of the São Francisco River, Northeastern Brazil

Biota Neotropica ◽

10.1590/1676-0611-bn-2017-0471 ◽

2018 ◽

Vol 18 (4) ◽

Cited By ~ 1

Author(s):

Telton Pedro Anselmo Ramos ◽

Jéssica Alcoforado de Sena Lima ◽

Silvia Yasmin Lustosa Costa ◽

Márcio Joaquim da Silva ◽

Raizze da Costa Avellar ◽

...

Keyword(s):

Freshwater Fish ◽

River Basin ◽

Fish Species ◽

Scientific Data ◽

Northeastern Brazil ◽

Fish Diversity ◽

Freshwater Fish Species ◽

Sao Francisco River ◽

São Francisco River ◽

Number Of Publications

Abstract: Freshwater ichthyofauna from Brazil Northeast region was considered as being poorly known until recent years, with a considerable number of publications becoming available in the last decade. The present study provides an inventory of freshwater fish species from the Paraíba do Norte River basin located in Paraíba State, Brazil. This inventory is intended to contribute to the of knowledge to the regional fish diversity, pre-transposition of the São Francisco River. Collecting data was obtained from ichthyological databases of both national and foreign institutions. A total of 47 freshwater fish species are registered within the Paraíba do Norte River basin, represented by 38 genera, 20 families and six orders. Characiformes, comprising 47% (22 species), Cichliformes, and Siluriformes are among the most representative orders, 19% (9 species) each, of total recorded species. Seven species of Cichliformes are reported as introduced species in this basin. Cyprinodontiformes and Gobiiformes also registered in this region and correspond to 5% (two species) and Gymnotiformes, Perciformes and Synbranchiformes, 2% (one species each) of total recorded species. Paraíba do Norte River basin stands out in the current national scenario as it comprises the first region from the Mid-Northeastern Caatinga freshwater ecoregion to receive water from the transposition of the São Francisco River. The current inventory is important as it provides scientific data related to the ichthyofauna of Paraíba do Norte River basin prior to the commencement of the river transposition process. An identification key is also given for the freshwater fish species of the region.

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Evaluation of the effects of pressure gradients on four Brazilian freshwater fish species

Brazilian Archives of Biology and Technology ◽

10.1590/s1516-89132009000100015 ◽

2009 ◽

Vol 52 (1) ◽

pp. 111-118 ◽

Cited By ~ 7

Author(s):

Paulo dos Santos Pompeu ◽

Luiz Felipe Mascarenhas Horta ◽

Carlos Barreira Martinez

Keyword(s):

Freshwater Fish ◽

River Basin ◽

Fish Species ◽

Gradual Increase ◽

Mortality Rates ◽

Pressure Gradients ◽

Freshwater Fish Species ◽

Sao Francisco River ◽

São Francisco River

This work aimed to experimentally evaluate the behavior of Brazilian freshwater fish species when submitted to a gradual increase in pressure, as well as sudden decompression's effects simulating the passage through a hydroelectric turbine. Four species from the São Francisco river basin were tested: Astyanax bimaculatus, Hypostomus sp., Leporinus reinhardti and Prochilodus costatus. For all of them mortality rates due to decompression were extremely low. However, the symptoms related to decompression, such as bulged eyes and hemorrhage, were not observed only in Hypostomus sp., and were more frequent the larger the pressure values were, considering the values from which decompression was performed. All these symptoms decreased significantly after 24 h of observation. With the increase in pressure inside the apparatus, the four tested species moved towards the upper levels. This behavior could make possoble the implementation of bypass downstream fish passages in dams constructed in Brazil.

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