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A fish-based biotic integrity index for assessment of lowland streams in southeastern Brazil
(Springer, 2009-05-01)
This study was carried out to develop and apply a fish-based biotic integrity index to assess lowland streams in a highly deforested region of the Upper Parana River basin. Fifty-six first-order segments were randomly ...
Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil
(2008-12-01)
The Itupararanga Reservoir is located at the Sorocaba River Basin, São Paulo State, Brazil. Five cities use the waters of this reservoir for human consumption. Despite this intensive use of the water resource, no study has ...
High percentages of larval tetraploids in the yellowtail tetra Astyanax altiparanae induced by heat-shock: The first case in Neotropical characins
(Elsevier B.V., 2020-04-15)
Tetraploid fish are an important source of diploid gametes for polyploid production, and they can be induced by inhibition of the first mitotic cell division. Dispite its potential, very few protocols regarding tetraploidization ...
Suggestions for fixing top-down coastal fisheries management through participatory approaches
(Elsevier Sci LtdOxfordInglaterra, 2013)
Socio-economic characteristics of the Cachoeira de Emas small-scale fishery in Mogi-Guaçu River, State of São Paulo, Brazil
(Instituto Internacional de Ecologia, 2009-11-01)
A pesca na região da Cachoeira de Emas ocorre desde quando os indígenas habitavam suas margens. As condições socioeconômicas dos pescadores que atuam neste local e a caracterização da pesca foram determinadas através de ...
Patterns of spatial variability between contrasting substrata: a boulder-field study
(Inter Research, 2020)
Hyphessobrycon nicolasi (Teleostei: Characidae) a new species from the Uruguay River basin in the Mesopotamian Region, Argentina
(Sociedade Brasileira de Ictiologia, 2010-03)
Hyphessobrycon nicolasi is described from the Uruguay River basin in the Mesopotamian Region, Entre Ríos, Argentina. The new species can be distinguished from all congeners by the presence of a well-defined oblique and ...
O lambari Astyanax altiparanae (Characidae) pode ser um dispersor de sementes?
(2003-07-01)
This work characterized the feeding of Astyanax altiparanae in the sub-basin of Corumbataí river and in the basin of Jacaré-pepira river with a focus on the ingestion of Croton urucurana seeds. The food items of Astyanax ...
Diferenças na alimentação de Rhamdia quelen em quatro diferentes ordens de sistemas lóticos
(2015-01-01)
The aim of this study was to compare the food composition of Rhamdia quelen in four distinct order rivers. It was performed at a low part at the basin of the Sorocaba river in systems classified as first (Anastácio stream), ...
Toxic element determination in fish from Paraná River Delta (Argentina) by neutron activation analysis: Tissue distribution and accumulation and health risk assessment by direct consumption
(Academic Press Inc Elsevier Science, 2016-12)
The concentrations of As, Co, Fe, Hg, and Zn were determined by INAA in muscle, gills, liver and scale of silversides (Odontesthes bonariensis) and sardine (Lycengraulis grossidens) from Paraná River Delta (Argentina) and ...