2014
DOI: 10.1590/1519-6984.03813
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Effects of crevice size on the establishment of macroalgae in subtropical streams

Abstract: Considering that in previous studies, the surface roughness (micrometric dimension) showed a weak effect on the colonization of stream macroalgae, we investigated the effects of different crevice sizes (milimetric dimension, a scale slightly higher than previous investigations) on the macroalgal abundance in three streams exposed to full sunlight in southern Brazil. We used smooth sterile glass plates with different shapes: P -plane surface without crevices; Ssinuous surface (depth of crevices with 0.159 mm ± … Show more

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“…Although there are several studies relating substrate variation and algal growth, the effects of complexity have been scarcely investigated so far, especially for freshwater ecosystems (considering the surface architecture, in millimeter to centimeter scales) (Tonetto et al, 2014a(Tonetto et al, , 2014bOsório et al, 2019, for periphytic community). In this context, we aimed to assess the influence of different complexity levels of artificial substrates on the colonization of lotic microalgae.…”
Section: Introductionmentioning
confidence: 99%
“…Although there are several studies relating substrate variation and algal growth, the effects of complexity have been scarcely investigated so far, especially for freshwater ecosystems (considering the surface architecture, in millimeter to centimeter scales) (Tonetto et al, 2014a(Tonetto et al, , 2014bOsório et al, 2019, for periphytic community). In this context, we aimed to assess the influence of different complexity levels of artificial substrates on the colonization of lotic microalgae.…”
Section: Introductionmentioning
confidence: 99%