Table 1.
Stable carbon isotope compositions of setae of a S. crosnieri individual during methane-fed rearing before and after tracer experiments
| Rearing period (month) | δ13C (‰) of natural abundance | δ13C (‰) after labeled tracer experiments | ||
|---|---|---|---|---|
|
| ||||
| [13C]methane | [13C]bicarbonate | [13C]bicarbonate +H2S | ||
| 0 | −40.3 0.2 | 278±30 | 561±8 | 3530±78 |
|
| ||||
| 3 | −38.8±1.0 | 612±41 | —* | −36.0±0.9 |
| −40.0±0.4 | 676±19 | — | −27.8±2.0 | |
| −41.5±0.4 | 424±1 | — | −31.4±1.0 | |
|
| ||||
| (Average) | −40.1 | 571 | — | −31.7 |
|
| ||||
| 12 | −41.4±0.4 | 1663±30 | 87.9±4.1 | 98.3±5.1 |
| −34.4±0.8 | 1052±40 | 44.8±6.6 | 20.9±5.8 | |
| −41.2±0.2 | 1675±153 | 150±4 | 111±15 | |
|
| ||||
| (Average) | −39.0 | 1463 | 94.3 | 76.8 |
Values were measured in triplicate and were expressed as means±standard deviations.
*
No data were available