02438nab a2200385 a 4500 AR-ReUNN 20260702003055.0 260630s2006 ag |||||||||||||||||spa spa eng Bonetto, Argentino a. 77121 Roldán, Dante o. 147459 Oliver, M. Esteban 147463 Estudios limnológicos en la Cuenca del Riachuelo - Corrientes, Argentina -. 1 : Poblaciones de peces en ambientes leníticos y lóticos / Argentino A. Bonetto , Dante O. Roldán , M. Esteban Oliver 2006 15 páginas Artículo triplicado disponible en caja 16 no 18, caja 26 no 6 y caja 11 no 2 de INICNE The present paper deals with the structural and distributional characteristics of the fish population of the extended complex of pools, swamps and marshes belonging to the basin of the Riachuelo River, a small tributary of the Paraná River, near the confluence of the Paraguay River, in the N. W. of the Corrientes Province. During the years 1974-1977, the studies were performed in several samplings in the whole area were registered 124 species of fishes belonging to 81 genera, 24 families and 11 orders, recording the greatest diversity in the Riachuelo river, where prevail typical fishes of lotic waters. In the pools, swamps and marshes of its basin were registered 73 species, from which 26 were absent in the Riachuelo's waters. Only one typical migratory fish : Prochilodus platensis, was somewhat frequent. The distributional mechanisms resulting from the rain floods are analized, as well as the integration of new populations, the tropic relations, the contributions of these bodies to the bioproductivity of the Riachuelo's waters, and the possibilities offered by them to the development of the regional pisciculture Ictiología 9239 Ichthyology 119207 Peces de Agua Dulce 6471 Freshwater Fish 117439 Inland Waters 117440 Limnología 61825 Limnology 147026 Sabalo 13182 Prochilodus Platensis 137130 Laguna Totora 147464 Corrientes 4086 Argentina 4258 Laguna Gonzalez 147103 Ecosur 0325-108X v. 5 n. 9 (1978) 234603 ART (INICN)34655 234634 234634 234634 AR-ReUNN spa AR-ReUNN aacr2