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Mean (± SE) biogenic silica concentrations (%BSi as SiO2 DW) in macroalgae from Narragansett Bay (RI, USA) and Waquoit Bay (MA, USA).
| Phylum | Genus | n | %BSi |
|---|---|---|---|
| Chlorophyta | Cladophora | 7 | 1.50 ± 0.23 |
| Codium | 1 | 1.57 | |
| Enteromorpha | 3 | 1.60 ± 1.06 | |
| Ulva | 31 | 1.63 ± 0.28 | |
| Ochrophyta | Ascophyllum | 1 | 0.61 |
| Fucus | 7 | 0.34 ± 0.08 | |
| Laminaria | 1 | 0.13 | |
| Saccharina | 1 | 0.24 | |
| Rhodophyta | Chondrus | 5 | 1.16 ± 0.43 |
| Cystoclonium | 1 | 22.96 | |
| Gracilaria | 10 | 2.37 ± 0.68 | |
| Grateloupia | 5 | 2.62 ± 1.06 | |
| Polysiphonia | 10 | 21.15 ± 3.07 |
