Use of Santa Clara Power Plant fish lift by Palaemonidae shrimps, Mucuri River basin, Minas Gerais, Brazil
adult, Brazil, fish passage, juvenile, larvae, migration, power plant, shrimp, structures, upstream, upstream migration
Journal or Book Title
Revista Brasileira de Zoologia
During the Santa Clara Power Plant fish lift operation, from November 2003 to March 2004, Palaemonidae adult specimens were counted and identified and estimated juveniles number. Two Palaemonidae species were recorded: Macrobrachium carcinus (Linnaeus, 1758) and Macrobrachium acanthurus (Wiegmann, 1836). The use of the fish lift by adults was restricted, since only 185 individuals were registered. However, the estimated juveniles number was 19,120 individuals. Although existing Fish passage systems could be considered as an alternative for Palaemonidae migration, planned spills during the reproductive periods could allow the drift of larvae. Moreover, the constructions of specific structures for upstream migration should be considered as an alternative for the maintenance of this important component of aquatic biota.