Table 1. Characteristics of the sediment cores from freshwater and saltwater environments. Freshwater and saltwater values are means with 1 s.e. in parentheses.
| Freshwater | Saltwater | t (d.f.) | P | |
|---|---|---|---|---|
| % Sand | 27.7 (2.0) | 29.1 (1.8) | −0.047 (8) | 0.65 |
| % Silt | 60.2 (3.2) | 56.3 (3.0) | 0.86 (10) | 0.40 |
| % Clay | 12.1 (1.9) | 14.6 (1.8) | −1.01 (10) | 0.33 |
| C:N | 13.2 (0.4) | 13 (0.3) | 0.45 (527) | 0.65 |
| % C | 4.3 (0.1) | 2.3 (0.1) | 12.00 (27) | <0.0001 |
| % N | 0.4 (0.04) | 0.2 (0.009) | 5.6 (16) | <0.0001 |
A t-test assuming unequal variances was used to test for differences between the two locations.