Distribución de la macrofauna bentónica en el lago costero Budi, Sur de Chile
- Bertrán, Carlos - Vargas-Chacoff, Luis - Peña Cortés, Fernando - Schlatter, Roberto - Tapia, Jaime - Hauenstein Barra, Enrique
- Ingeniería en Recursos Naturales Renovables
- Facultad de Recursos Naturales
- Fecha de publicación:
- Datos de publicación:
- Revista de Biología Marina y Oceanografía, Vol.45, Nº2, 235-243, 2010
- Producción Alimentaria 
- We describe the benthic macroinvertebrate associations Budi coastal lagoon southern Chile, salt nature.
They relate the abundance and biomass species with organic matter levels and types of sediment, 9 stations were chosen
for sampling. The muddy bottom is the substrate dominates more than gravel, which is the least represented. Organic
matter showed the highest percentages in the mud at stations Allipén and Temo with 87.35 and 84.29% respectively.
8 species were identified, distributed in the Phyla: Annelida (2), Arthropoda (3) and Mollusca (3), being Prionospio
patagonica (Polychaeta, Spionidae) and Littoridina cumingi (Mollusca, Cyamiidae) the most abundant species. The
highest recorded average abundance per sampling station corresponded to 351 ind. m-2 and the highest average biomass
was 1.0132 g m-2 at the station Deume 2. The lowest values of diversity are consistent with the highest values of
dominance. ABC curves, indicate that the Budi River, Temo, Allipén, Bolleco, Botapulli, Deume 1 y Deume 3 stations
have low disturbance. The results of nonparametric ordination (MDS) indicate that there is a clear segregation into two
groups. The main difference between stations is the abundance of the polychaete Spionidae Prionospio patagonica.
Different macroinvertebrate communities are closely related to the levels of organic matter and sediment. It states that
the macrofauna community comes in two segregations, which are related to coastal features of the lake.