Nucleotide diversity of Hemigrammus cf. marginatus (Characiformes, Characidae) in the upper Paraná river floodplain
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چکیده
منابع مشابه
Mitochondrial D-loop nucleotide diversity in Astyanax (Osteichthyes, Characidae) from the upper Paraná and upper Paraguay River basins.
The morphological discrimination between the species Astyanax altiparanae and A. asuncionensis of the upper Paraná River and Paraguay River basins, respectively, has always been difficult. Two D-loop haplogroups of A. altiparanae are known, one with the presence (AltoPR) or the absence (AltoPR-D) of a 32-bp block similar to that in A. asuncionensis. We examined these samples to characteriz...
متن کاملVascular flora of the Upper Paraná River floodplain.
The purpose of this study was to update the floristic inventory found in the Upper Paraná River floodplain. Floristic surveys were performed from February 2000 through March 2008, as part of the Brazilian Long-Term Ecological Research Program (PELD/CNPq-Site 6). The material collected was identified from 774 species, 442 genera, and 116 families. The ten families with high species richness were...
متن کاملCondition factor in nine species of fish of the Characidae family in the upper Paraná River floodplain, Brazil.
The condition factor for nine species of tropical freshwater fish of the Characidae family in the upper Paraná River floodplain is described. Fish were caught over a period of 12 months (February 1993 to March 1994). Knowledge of the nine species is important for adequate management and maintenance of the biological equilibrium of the ecosystem.
متن کاملCyclopidae (Crustacea, Copepoda) from the upper Paraná River floodplain, Brazil.
Cyclopid copepods from samples of fauna associated with aquatic macrophytes and plancton obtained in lotic and lentic environments were obtained from the upper Paraná River floodplain (in the states of Paraná and Mato Grosso do Sul, Brazil). Macrophytes were collected in homogeneous stands and washed. Plankton samples, taken from the water column surface and bottom, were obtained using a motor ...
متن کاملPhytoplankton diversity in the Upper Paraná River floodplain during two years of drought (2000 and 2001).
Floodplain lakes and lotic environments of the High Paraná River floodplain present notable biodiversity, especially in relation to phytoplanktonic community. The goal of this work was to evaluate phytoplankton diversity (alpha, beta and gamma) in three subsystems during two years of drought (2000 and 2001). We sampled 33 habitats at the pelagic zone subsurface during February and August. Due t...
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ژورنال
عنوان ژورنال: Acta Scientiarum. Biological Sciences
سال: 2012
ISSN: 1807-863X,1679-9283
DOI: 10.4025/actascibiolsci.v34i3.6669