Title
Chapter Title: Diversity, use and conservation of stingrays (Myliobatiformes: Potamotrygonidae) in Bolivia
Book Title: Freshwater stingrays (Potamotrygonidae) of South America. Part II: Colombia, Brazil, Peru, Bolivia, Paraguay, Uruguay and Argentina.
Author(s)
Sarmiento, Jaime ;Carvajal-Vallejos, Fernando M. ;Barrera, Soraya ;Lizarro, Dennis ;Miranda, Guido ;Álvarez, Gustavo ;Calderón, Hailin ;Córdova, Leslie ;Zeballos Fernández, América J. ;Osinaga, Karina
Published
2016
Abstract
This chapter presents a synthesis of current knowledge on the composition, distribution and main aspects of the ecology of the rays (Myliobatiformes: Potamotrygonidae) of Bolivia. Five species (Paratrygon aiereba, Potamotrygon falkneri, P. motoro, P. orbignyi and P. tatianae) were recorded based on specimens deposited in fish collections and records made in the framework of projects on ichthyofauna and fisheries. All species were recorded in the Amazon basin of the country and two species (P. falkenri and P. motoro) are known from the Para-guay-Paraná basin in Bolivia. Most species feed on macroinvertebrates, including insects, crabs and shrimp and, to a lesser extent, fish. Reproduction is concentrated in the high water months (November to February-March). The species are viviparous and have low fecundity. Although there are no species on Bolivia's endangered species list, commercial use of some species has increased in recent years. Despite the notable increase in knowledge about the fish fauna of the Bolivian lowlands, further study of the ecology and fisheries of ray species and the current development of fisheries is needed.
Keywords
Feeding;Upper Madera basin;Distribution;Reproduction;Reproduction

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PUB19173