Table 1.
Isotope values, biomass (mg), C and N content and C/N ratio (wt/wt) of sediment (n = 3), algae (n = 3) and animals (n = 10) at the start of the experiment
| δ15N | δ13C | Biomass | C% | N% | C/N | |
|---|---|---|---|---|---|---|
| Sediment | 6.8 ± 0.2 | −23 ± 0.1 | – | 3.9 ± 0.1 | 0.6 ± 0.0 | 7.1 ± 0.1 |
| Algae | 139,800 ± 1,300 | 2,460 ± 10 | – | 21.3 ± 0.1 | 3.8 ± 0.1 | 5.6 ± 0.1 |
| Monoporeia | 10.8 ± 2.0 | −19.8 ± 0.4 | 0.7 ± 0.3 | 32.5 ± 1.6 | 8.0 ± 0.5 | 4.1 ± 0.2 |
| Pontoporeia | 9.5 ± 2.0 | −21.9 ± 0.5 | 1.2 ± 0.2 | 43.7 ± 2.8 | 8.3 ± 0.5 | 5.3 ± 0.4 |
| Macoma | 12.2 ± 1.8 | −20.8 ± 0.4 | 1.0 ± 0.4 | 41.4 ± 1.9 | 10.0 ± 0.5 | 4.1 ± 0.1 |
| Marenzelleria | 11.5 ± 1.0 | −21.7 ± 0.3 | 1.6 ± 0.5 | 43.5 ± 2.0 | 10.7 ± 0.9 | 4.1 ± 0.3 |
Values are mean ± SD