The effects of cable on: (a) live sponge cover (live sponge area 100/total image
area) measured along two cable and two control transects (mean ± SE, n ¼ 10), (b) live
sponge proportion (live sponge area 100/total sponge area) measured along two
cable and two control transects (mean ± SE, n ¼ 10); (c) live sponge cover measured at
two index sites (mean ± SE, n ¼ 2 except for February 2010; percent change is
calculated relative to sponge cover recorded in October 2008 after cable installation),
over time