Hifomicetos acuaticos de dos ríos de aguas negras de Venezuela

Resumen

 Aquatic hyphomycetes are the dominant
microorganisms colonizing leaf litter in streams and
thus have an important role on the energy flow of
woodland streams (Baldy et al.1995, Gulis &
Suberkropp 2003, Methvin & Suberkropp 2003).
However, their importance on the decomposition
of organic matter, diversity or richness is not well
documented in tropical waters since only a few
studies have been conducted in this region (Santos-
Flores & Betancourt-López 1997). In order to
increase our knowledge on these microorganisms
in Venezuela, a taxonomic and ecological study of
the aquatic hyphomycetes of rivers in National
Parks was initiated in 2000. The objective of this
paper is to report the hyphomycetes present in two
blackwater streams (Quebrada Los Pinetes and
Quebrada El Vino) of the Dinira National Park
(Lara State, Venezuela) along with the hydro-
physico-chemical characteristics of the streams
sampled.