Figure 1.

Mean (±s.e.) APE¹³C values for microbial and sponge cell fractions from the sponges A. cauliformis (Acau), A. fulva (Aful), C. caribensis (Cnuc), N. erecta (Nere), N. subtriangularis (Nsub) and X. bocatorensis (Xboc) incubated in light (clear) and dark (amber) bottles. Values from the dark treatment are included for reference. Different letters within columns indicate statistically significant differences in the APE¹³C of the sponge (lower case) or microbial fraction (upper case) values across species, as determined by an ANOVA on each fraction followed by an LSD multiple pairwise comparison.An asterisk indicates significantly different APE¹³C values between the fractions of one species. N=for 5 for the microbial and sponge fractions of Acau, Aful, Cnuc, Nsub and Xboc and the microbial fraction of Nere. N=3 for the sponge fraction of Nere.