Yimmy Montoya Moreno

Aproximación multivariada a la dinámica del ensamblaje algal epifítico en un sistema de planos inundables tropica

Objective: Identify dynamics of periphytic algal assembly through flood pulse during three hydrological cycles on a tropical flood plain. Materials and methods: In different phases of flood pulse between 2006 and 2009, nine samplings were carried out which evaluated the spatial and temporal variation of epiphytic algal assemblage associated with macrophytes roots in 14 sites of sampling, 7 zones with lentic and 7 lotic conditions of the Ayapel flood plain were taken at different stages of the flood pulse between 2006 and 2009. Macrophytes roots were taken in lugol, in which it was observed epiphytic algal assemblage, what allowed the multivariate study of their dynamic. Results: Similarity floristic between the algae assemblages was low and denoted specificity of species that inhabit each of these compartments of the system. A majority location of species around the ammonium was observed in both systems. The few species or genera that are repeated between two ecosystems are ordered with respect to different conditions, which may be associated with the degree of adaptation of organisms to environmental conditions.