Table 2. Stable isotope composition of scaly-foot gastropods incubated with 13C-bicarbonate.
| Incubation conditonsa,b |
δ13C of tissue (Average±s.d.) |
Number of samples | Reference | |
|---|---|---|---|---|
| Esophageal gland | Foot | |||
| SW | +6.8 | +12.9 | 1 | This study |
| SW+100 μM sulfide | +7.4 | +6.0 | 1 | This study |
| SW+20% H2 (v/v) | −11.3 | +17.6 | 1 | This study |
| SW+100 μM sulfide+20 % (v/v) H2 | +12.4±9.5 | −1.5±1.3 | 2 | This study |
| Control | ||||
| SW+100 μM sulfide (dead) | −20.1 | −17.6 | 1 | This study |
| SW+20% H2 (v/v) (dead) | −20.5 | −17.9 | 1 | This study |
| Not incubated | −20.7±0.9 | −18.2±0.6 | 4 | Goffredi et al., 2004 |
a
SW, surface seawater containing 3mM 13C-bicarbonate.
b
Dead, snails killed by freezing were incubated.