Distribution of benthic flora in the lower course of the Valdivia, Chile.
- Autor:
- Ramírez García, Carlos - Figueroa, Heriberto - Hauenstein Barra, Enrique - Contreras, Domingo
- URI:
- https://hdl.handle.net/10925/940
- Carrera:
- Agronomía - Ingeniería en Recursos Naturales Renovables
- Facultad:
- Facultad de Recursos Naturales
- Fecha de publicación:
- 2012-08-08
- Datos de publicación:
- Estuaries, Vol.12, N°2, 111-118, 1989
- Temas:
- Flora acuática
- Medio Ambiente [372]
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- Resumen:
- The Valdivia River (Lake Region, Chile) originates in Riñihue Lake and flows into the sea at Corral
Bay (39'52's latitude), changing names severa1 times along its course. The aquatic benthic flora (algae and aquatic
plants) of the Valdivia River was characterized, based on 22 sites sampled and 124 plant species collected. Four
benthic vegetation zones were established using presence-absence data: a freshwater zone and a marine zone were
found at the extremes of the transect; an estuarine zone and a discontinuity zone were detected in the middle vi
this transect. The freshwater zone was characterized by a relatively diverse assemblage of vascular plants, the marine
zone was dominated by algae and was rich in species. By contrast, the estuarine zone was inhabited by only a few
species but in great abundance, while the discontinuity zone was poor in species and low in cover vegetation.