INVESTIGADORES
HUED Andrea Cecilia
congresos y reuniones científicas
Título:
Patterns of fish species richness in rivers of the central part of Argentina.
Autor/es:
BISTONI, M. A; HUED, A. C.
Lugar:
Melbourne, Australia
Reunión:
Congreso; Societas Internationalis Limnologiae, XXVIII Congress.; 2001
Institución organizadora:
Societas Internationalis Limnologiae
Resumen:
The knowledge of the fish fauna of the rivers in the central part of Argentina has increased in the last few years. However, fish community distribution is still unknown. We analyzed the variation of fish species richness and trophic structure along an upstream-downstream gradient and identified the factors associated with the patterns observed. The fish community composition varied along a headwater-downstream gradient. Species richness and trophic structure were correlated significantly with altitude, order and distance from source. Headwater communities showed a simple structure. From these zones to downstream areas fish communities changed because of the addition of other fish species.
