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Carbon and nitrogen isotopes of six sponge species (SP1–SP6) and putative organic matter sources for sponges at reef site B1. The average and standard error for SP1 (n = 3) and SP6 (n = 2), GFC-SPM (n = 3), GFF-SPM (n = 3) is presented. Other data points (SP2, 3, 4, and 5, CCA and mucus from two coral species, Montastraea annularis (MU1) and Madracis mirabilis (MU2) do not have replicates other than repetitive sample analysis of the same specimen). See also Tables 1, 2
