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First record of Crenicichla semifasciata (Heckel, 1840) (Teleostei: Cichlidae) in the upper Rio Paraná basin, Brazil
(2015-01-01)
Crenicichla semifasciata was described from the Rio Paraguai in Caiçara (near Cáceres, Mato Grosso, Brazil) and has been reported in the Rio Paraguai and lower portion of the Rio Paraná downstream of the Itaipu hydroelectric ...
Cage fish farm act as a source of changes in the fish community of a Neotropical reservoir
(2018-10-01)
Brazil has shown an increase in cage fish farms activity in reservoirs. However, this activity shows potential to cause several changes in the environment with consequences in the structure of native fish fauna community. ...
Molecular characterization and in situ detection of bacterial communities associated with rhizosphere soil of high altitude native Poaceae from the Andean Puna region
(Academic Press Ltd - Elsevier Science Ltd, 2010-10)
Puna is a harsh bio-geographical region in South America that characterized by distinct plant diversity, high aridity and irradiance. In the present study, rhizospheric bacterial communities were analyzed along an altitudinal ...
Grass-dominated stream sites exhibit low fish species diversity and dominance by guppies: an assessment of two tropical pasture river basins
(Springer, 2009-10-01)
This study investigates whether (1) structural configuration (considering substrate composition, wood debris, marginal and riparian vegetation) of streams suggests habitat simplification on a basin scale and (2) fish ...
Grass-dominated stream sites exhibit low fish species diversity and dominance by guppies: an assessment of two tropical pasture river basins
(Springer, 2009-10-01)
This study investigates whether (1) structural configuration (considering substrate composition, wood debris, marginal and riparian vegetation) of streams suggests habitat simplification on a basin scale and (2) fish ...
Uptake, tissue distribution and elimination in a native fish species Astyanax eigenmanniorum exposed to inorganic mercury
(Elsevier Science, 2020-09)
The increasing contamination of water bodies with mercury (Hg) raises concerns about the possible effects of this metal on native fish species. Our current understanding of its dynamics in fish organs remains limited. In ...
Efecto de la herbivoría y coralivoría por peces en la supervivencia de corales trasplantados en el Caribe colombiano
Effect of herbivorous and corallivorous fishes on the survival of transplanted corals in the Colombian Caribbean. To examine the effects of herbivorous and corallivorous fishes on the survival of transplanted colonies of ...
The invasive parasitic copepod lernaea cyprinacea: Updated host-list and distribution, molecular identification and infection rates in Patagonia
(Regional Euro-Asian Biological Invasions Centre, 2019-06)
Although competition and predation are mechanisms more studied in biological invasions, ecologists and conservation managers have become aware of the threat imposed by the co-introduction of parasites. Parasites can be ...