The remarkable fish diversity in the Caribbean rivers of north‐western South America
evolved under the influences of the dramatic environmental changes of neogene northern …

The natural flood pulse of the Amazon basin has been altered progressively by the
installation of hydroelectric dams, which have had a potentially adverse impact on the local …

Individuals of the same species may present different reproductive tactics depending on the
environment in which they develop and mature. The present study aimed to define the …

The reproductive parameters are among the most important life history aspects of fishes
influenced by environmental variation. During recent years, the main life history strategies of …

The aim of this study was to evaluate the reproductive strategy of Aequidens tetramerus in
small streams of the Machado river basin, southwestern Amazon. We collected samples in …

Abstract The Surinam anchovy (Anchovia surinamensis) is a small fish of commercial and
ecological interest in the Amazon basin. To understand the reproductive and population …

O presente trabalho tem por objetivo avaliar a razão sexual de Geophagus surinamensi,
verificar o dimorfismo sexual e determinar se há ou não diferenças significativas no …