(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.


Figure 2


Fig. 2. Spatial properties of six natural substrates (S1–S6) used in this study. Left column, images of substrates; right column, rock size distributions. Rock size scales (i.e. x-axis) of plots are kept the same to show shift towards the left (i.e. smaller size) of mean rock size. Red vertical line on the very left of each plot is truncated sand grain size. S1, rock substrate without any sand; S2, rock substrate with half a cup of the {phi} 0 sand spread over the substrate evenly; S3, one cup of sand; S4, two cups of sand; S5, four cups of sand; S6, full sand.