Resumen de De la costa al laboratorio: Respuesta de superficies carbonatadas colonizadas y libres a oscilaciones ambientales
A laboratory experiment examining daily short-term rock surface changes during 15 days is presented. The experiment deals with the interplay between free colonized and biofilm colonized shore platform rock surface with temperature, relative humidity and light controlled cycles. Findings show the existence of accommodation and disturbance rock surface changes according to environmental stress in both non-colonized and colonized rock surfaces. Although rock surface relative changes range from 0.044 to –0.038 mm, there is not a statistically significant change in microtopography from successive readings. This indicates a self-adjustment of rock surface according to environmental stress that results in opposite trends between the non-colonized and the colonized rock surfaces. At the end of the experiments non-colonized rock surface shows a slight erosion surface inversely to the colonized surface. All together suggests that at short-term temporal scales biofilms in rock surface can exert a bioprotection role in front of physical stress.
