Monitoring the Genotoxic and Cytotoxic Potential and the Presence of Pesticides and Hydrocarbons in Water of the Sinos River Basin, Southern Brazil

The Sinos River encompasses a wide area of natural habitats and, at the same time, supports one of the highest population densities of southern Brazil. Consequently, natural habitats along the Basin present a high degree of habitat disturbance. Despite of the existence of threatened species, information about diversity of amphibians in that area is scarce. Thus, we aimed to catalogue the amphibian species of the Sinos River Basin from records in scientific collections and compilation of published articles. We recorded 52 species, all with geographic coordinates validated at the collection point, indicating that the Sinos River Basin harbours about 50% of the amphibian species of the State of Rio Grande do Sul. Three anuran species were classified as having some degree of threat: Melanophryniscus cambaraensis, Melanophryniscus dorsalis and Thoropa saxatilis. We also expected other 18 species with a high probability of occurrence in the Basin. This work shows that, despite the intense human impact, the Sinos River Basin has a relevant role for the maintenance of a considerable fraction of the amphibian biodiversity in southern Brazil.

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Fish species indicators of environmental variables of Neotropical streams in southern Brazil, upper Paraná River basin

Acta Ichthyologica Et Piscatoria ◽

10.3750/aip2016.46.2.04 ◽

2016 ◽

Vol 46 (2) ◽

pp. 87-96 ◽

Cited By ~ 7

Author(s):

D.L.F. Caetano

Keyword(s):

River Basin ◽

Fish Species ◽

Environmental Variables ◽

Paraná River ◽

Southern Brazil ◽

Parana River ◽

Neotropical Streams ◽

Upper Paraná River ◽

Upper Paraná River Basin ◽

Paraná River Basin

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Occurrence of the alien invasive loach Misgurnus anguillicaudatus in the Iguaçu River basin in southern Brazil: a note of concern

Journal of Applied Ichthyology ◽

10.1111/jai.12007 ◽

2012 ◽

Vol 29 (1) ◽

pp. 257-259 ◽

Cited By ~ 7

Author(s):

V. Abilhoa ◽

H. Bornatowski ◽

J. R. S. Vitule

Keyword(s):

River Basin ◽

Misgurnus Anguillicaudatus ◽

Southern Brazil ◽

Iguaçu River

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Fishes of the Taquari-Antas river basin (Patos Lagoon basin), southern Brazil

Brazilian Journal of Biology ◽

10.1590/s1519-69842013000100010 ◽

2013 ◽

Vol 73 (1) ◽

pp. 79-90 ◽

Cited By ~ 9

Author(s):

FG. Becker ◽

Fries LCC. De ◽

J. Ferrer ◽

VA. Bertaco ◽

KDG. Luz-Agostinho ◽

...

Keyword(s):

River Basin ◽

Fish Species ◽

Native Species ◽

Fish Fauna ◽

Secondary Data ◽

Southern Brazil ◽

Long Distance ◽

Patos Lagoon ◽

Prochilodus Lineatus ◽

Taxonomic Description

The aquatic habitats of the Taquari-Antas river basin (in the Patos Lagoon basin, southern Brazil) are under marked environmental transformation because of river damming for hydropower production. In order to provide an information baseline on the fish fauna of the Taquari-Antas basin, we provide a comprehensive survey of fish species based on primary and secondary data. We found 5,299 valid records of fish species in the basin, representing 119 species and 519 sampling sites. There are 13 non-native species, six of which are native to other Neotropical river basins. About 24% of the total native species are still lacking a taxonomic description at the species level. Three native long-distance migratory species were recorded (Leporinus obtusidens, Prochilodus lineatus, Salminus brasiliensis), as well as two potential mid-distance migrators (Parapimelodus nigribarbis and Pimelodus pintado). Although there is only one officially endangered species in the basin (S. brasiliensis), restricted range species (21.7% of total species) should be considered in conservation efforts.

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A new species of Aegla Leach, 1820 (Crustacea, Anomura) from the Iguaçu River basin, Brazil

Zootaxa ◽

10.11646/zootaxa.4527.3.3 ◽

2018 ◽

Vol 4527 (3) ◽

pp. 335 ◽

Cited By ~ 6

Author(s):

FERNANDA POLLI PÁEZ ◽

INGRID COSTA MARÇAL ◽

LENICE SOUZA-SHIBATTA ◽

RAFAEL AUGUSTO GREGATI ◽

SILVIA HELENA SOFIA ◽

...

Keyword(s):

New Species ◽

River Basin ◽

Morphological Characteristics ◽

Molecular Data ◽

Southern Brazil ◽

Mitochondrial Coi ◽

Interspecific Distance ◽

Morphological And Molecular Data ◽

A New Species ◽

Iguaçu River

A new species of aeglid crab, Aegla okora n. sp., is described. This species was found in the Iguaçu River basin in Paraná state, southern Brazil. Aegla okora n. sp. was discriminated based on morphological and molecular data (mitochondrial COI). Morphologically, the new species differs from congeners of the same river basin by the presence of a trapezoidal areola and the ventromesial border of the ischium having three tubercles, besides other exclusive additional morphological characteristics. Molecular results demonstrated that there is no overlap between the intraspecific distances of Aegla okora n. sp. and the interspecific distance of other species of Aegla added to the analysis, confirming the separation of species and increasing the known diversity of the Iguaçu River basin.

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Assessment of heavy metals in sediments of the Sinos river basin, southern Brazil

E3S Web of Conferences ◽

10.1051/e3sconf/20130133010 ◽

2013 ◽

Vol 1 ◽

pp. 33010

Author(s):

I. L. Schneider ◽

E. C. Teixeira ◽

M. L. K. Rodrigues ◽

S. B. A. Rolim

Keyword(s):

Heavy Metals ◽

River Basin ◽

Southern Brazil

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Water quality assessment of the Sinos River, Southern Brazil

Brazilian Journal of Biology ◽

10.1590/s1519-69842010000600008 ◽

2010 ◽

Vol 70 (4 suppl) ◽

pp. 1185-1193 ◽

Cited By ~ 40

Author(s):

KK. Blume ◽

JC. Macedo ◽

A. Meneguzzi ◽

LB. Silva ◽

DM. Quevedo ◽

...

Keyword(s):

Water Quality ◽

River Basin ◽

Oxygen Demand ◽

Water Quality Assessment ◽

River Basin Management ◽

Fecal Coliforms ◽

Southern Brazil ◽

Urban Core ◽

Regulatory Limits ◽

Poor Water Quality

The Sinos River basin is located Northeast of the state of Rio Grande do Sul (29º 20' to 30º 10' S and 50º 15' to 51º20'W), Southern Brazil, covering two geomorphologic provinces: the Southern plateau and central depression. It is part of the Guaíba basin and has an area of approximately 800 km², encompassing 32 municipalities. The objective of this study was to monitor water quality in the Sinos River, the largest river in this basin. Water samples were collected at four selected sites in the Sinos River, and the following parameters were analysed: pH, dissolved oxygen, biochemical oxygen demand (BOD5), turbidity, fecal coliforms, total dissolved solids, temperature, nitrate, nitrite, phosphorous, chromium, lead, aluminum, zinc, iron, and copper. The results were analysed based on Resolution No. 357/2005 of the Brazilian National Environmental Council (CONAMA) regarding regulatory limits for residues in water. A second analysis was performed based on a water quality index (WQI) used by the Sinos River Basin Management Committee (COMITESINOS). Poor water quality in the Sinos River presents a worrying scenario for the region, since this river is the main source of water supply for the urban core. Health conditions found in the Sinos River, mainly in its lower reaches, are worrying and a strong indicator of human activities on the basin.

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