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Fish biomass, species richness and composition were compared between upland streams draining two contrasting geological units (Pebas and Tsa) in Colombian Amazonia. Because Pebas sediments reportedly show higher levels of base concentrations than Tsa sediments, we expected that the fish communities from the Pebas streams would show highest biomass...
Se describen cerca de 350 especies de peces, en parte con diseños de características morfológicas importantes para su determinación. Al final del libro se presentan fotos en color de las especies descritas. De especial interés son los primeros capítulos del libro, un capítulo extenso resume el conocimiento sobre el desarrollo geológico la biogeogra...
Se presenta una lista elaborada usando material depositado en la colección ictiológica del Instituto de Ciencias Naturales de la Universidad Nacional del Colombia de las especies de pees de la zona sur del Trapecio Amazónico entre las poblaciones de Leticia y Puerto Nariño. La mayor parte del material fue colectado en los arroyos selváticos La Aren...
An intensive inventory of the ichthyofauna in a small terra firme forest stream of the Colombian Amazonia was carried out to examine the ichthyological composition of these environments and to identify patterns of fish species permanency during the seasonal cycle. One hundred and nine fish species were collected, which is the highest recorded numbe...
