Nevertheless, the influence of the microhabitat hydrodynamics
on the stimulatory threshold of algae settlement
has been underexplored. assessed the effects of hydrological disturbance on algal
accumulation, but only in two types of surface roughness
(smooth vs. rough). Here, our objective was to investigate
the surface features in a gradient of roughness in an
attempt to find the stimulatory limit for algae accumulation,
regarding the interaction between hydraulics and
roughness. Hence, we measured hydraulic parameters
associated to individual surfaces in order to assess the role
of substrate texture properties in algae colonization on
various rough surfaces. Indeed, the relationship between
the microhabitat hydrodynamics and the accumulation of
algal assemblages has been seldom explored. Following,we consider that disturbance of water
flow is a dominant organizing factor in stream ecology.
Therefore, we hypothesized that increasing disturbance by
water flow would change the roughness effect on algae
accumulation.