Figure 3.

DOC (a, b) and bacterioplankton (c, d) concentrations averaged across 1, 5 and 10 m discrete depth samples two to three times annually at four sampling locations 2005–2009 in the vicinity of Paopao Bay, Moorea (see Figure 1 for profile locations). Data are separated by season (Summer a, c; Winter b, d) to test for significant differences when waves are highest during austral summer. Box plots represent mean, quartiles and 90% ranges of data averaged at each location over time and depth. Letters denote significant differences among all averages across seasons for each parameter (means with no letters in common are significantly different at the 95% confidence level via Tukey post hoc tests). Note that backreef is always depleted relative to offshore and differentiation among habitats is more pronounced in winter than summer. Offshore DOC is always higher than all other nearshore habitats, and the only seasonal difference within a given habitat is higher bacterioplankton concentration in the bay in winter.