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

2018 ◽  
Vol 18 (4) ◽  
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.

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

2009 ◽  
Vol 52 (1) ◽  
pp. 111-118 ◽  
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.

scholarly journals Freshwater fish diversity in three tributary streams in Serayu Basin, Central Java, Indonesia

2020 ◽  
Vol 21 (12) ◽  
Author(s):  
Suhestri Suryaningsih ◽  
Dian Bhagawati ◽  
Sri Sukmaningrum ◽  
Sugiharto Sugiharto ◽  
Ayu ratna I gusti agung
Keyword(s):  
Freshwater Fish ◽  
Fish Species ◽  
Fish Diversity ◽  
Random Group ◽  
Freshwater Fish Species ◽  
Central Java ◽  
Gill Net ◽  
Southern Central ◽  
Temporal And Spatial ◽  
Fish Species Diversity

Abstract. Suryaningsih S, Bhagawati D, Sukmaningrum S, Sugiharto, Puspitasari IGAAR. 2020. Freshwater fish diversity in three tributary streams in Serayu Basin, Central Java, Indonesia. Biodiversitas 21: 5811-5817. Determining the diversity of freshwater fish species in Central Java, Indonesia has been confounded by temporal and spatial limitations in past studies. The Serayu Basin is a large watershed in Central Java that is believed to have high freshwater fish diversity. We aimed to determine the diversity and community structure of freshwater fish species in three tributaries of the Serayu, elucidate the factors influencing this diversity, and determine the extent to which these tributaries contribute to the total freshwater fish species richness for southwest Central Java. We conducted gill net sampling from May to August 2018 on the Tulis, Mrawu, and Kali Sapi Rivers located at Banjanegara district Sampling followed a random group technique in upstream, midstream, and downstream river sections of each tributary. In total, we observed 21 freshwater fish species. Broadly, fish species diversity was relatively low in the study area, and water temperature and dissolved oxygen were important in maintaining fish diversity. These three tributaries house 27–46% of the freshwater fish species reported for southern Central Java.

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.

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

Caryologia ◽  
2007 ◽  
Vol 60 (1-2) ◽  
pp. 64-68 ◽  
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

A review of the freshwater fishes of the Kimberley region of Western Australia

Zootaxa ◽  
2011 ◽  
Vol 2816 (1) ◽  
pp. 1 ◽  
Author(s):  
DAVID L. MORGAN ◽  
GERALD R. ALLEN ◽  
BRADLEY J. PUSEY ◽  
DAMIEN W. BURROWS
Keyword(s):  
Freshwater Fish ◽  
River Basin ◽  
Fish Species ◽  
Western Australia ◽  
Single Species ◽  
Freshwater Fishes ◽  
Gambusia Holbrooki ◽  
Freshwater Fish Species ◽  
Introduced Fishes ◽  
Eastern Mosquitofish

This paper provides an overview of the freshwater fishes of the remote and sparsely populated Kimberley region of Western Australia, an area that has been subject to minimal scientific surveys, most of which have occurred in the last 30 years. A total of 49 freshwater fish species are reported from the region, but this number will likely grow as a result of future discoveries. It is an endemic hotspot, with ~40% of the species found nowhere else; many of which are known from only a few localities. The fauna is dominated by members of the Terapontidae (10 species) and Eleotridae (10 species), followed by the Plotosidae (five species), Melanotaeniidae (five species), Atherinidae (four species) and Ambassidae (four species). Additionally, in terms of freshwater fishes of the Kimberley, there are two species each in the Toxotidae and Ariidae, and a single species from each of the Anguillidae, Clupeidae, Hemiramphidae, Belonidae, Apogonidae, Gobiidae and Soleidae. There are currently no introduced fishes found in any major catchments of the Kimberley, however, there are records of the Eastern Mosquitofish (Gambusia holbrooki) from Cape Leveque (Morgan et al. 2004c) and the Redclaw Crayfish (Cherax quadquicarinatus), which have recently been found within the Ord River basin (Doupé et al. 2004).

scholarly journals Genetic differentiation through dispersal and isolation in two freshwater fish species from coastal basins of Northeastern Brazil

2020 ◽  
Vol 18 (3) ◽  
Author(s):  
João Marcelo S. Abreu ◽  
Brandon T. Waltz ◽  
James S. Albert ◽  
Nivaldo M. Piorski
Keyword(s):  
Freshwater Fish ◽  
Fish Species ◽  
Sequence Data ◽  
Fish Fauna ◽  
Northeastern Brazil ◽  
Molecular Sequence Data ◽  
Molecular Sequence ◽  
Freshwater Fish Species ◽  
Sea Level Fluctuations ◽  
Coastal Basins

Abstract The coastal basins in Northeastern Brazil used in this study make up two different ecoregions for freshwater fishes (Amazonas estuary and coastal drainages, and Parnaiba) and two areas of endemism for Characiformes (Maranhão and Parnaíba), and exhibits a diversified yet poorly explored freshwater fish fauna. The population structure and biogeography of two migratory freshwater fish species that are commercially exploited from Maranhão and Parnaíba regions were herein analyzed. Molecular sequence data and statistical analyses were used to estimate haplotypes networks and lineage divergence times and correlated with hydrographic history of drainage and paleodrainages of the region. A total of 171 sequences was produced for both species, Schizodon dissimilis (coI, n = 70) and Prochilodus lacustris (D-loop, n = 101). All analyses identified the presence of three genetically delimited groups of S. dissimilis and six groups of P. lacustris. The lineage time analyses indicate diversification among these species within the past 1 million year. The results indicate the influence of geodispersal in the formation of the ichthyofauna in the studied area through headwater stream capture events and reticulated connections between the mouths of rivers along the coastal plain due to eustatic sea level fluctuations.

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