Table 1 Pearson correlation coefficients for Fiji, Tonga, Rarotonga, American Samoa (Ta’u); coral skeletal annual δ13C and annual extension rate (in mm)
From: Coral carbon isotope sensitivity to growth rate and water depth with paleo-sea level implications
(A) Correlation coefficients for coral skeletal δ13C and extension rate | |||||||
|---|---|---|---|---|---|---|---|
Fiji, Tonga, Rarotonga, Am. Samoa (Ta’u); Annual coral extension rate and annual skeletal δ13C (all Porites lutea) | |||||||
R all data | p | R Before 1960 | p | R After 1960 | p | ||
Fiji 1F | −0.45 | <0.001 | −0.55 | <0.001 | −0.33 | <0.01 | |
Fiji AB | −0.47 | <0.001 | −0.34 | <0.001 | −0.12 | <0.01 | |
Tonga TNI2 | −0.64 | <0.001 | −0.68 | <0.001 | −0.3 | <0.01 | |
Rarotonga 2R | −0.55 | <0.001 | −0.55 | <0.001 | −0.32 | <0.01 | |
Ta’u-1 | −0.39 | <0.001 | −0.33 | <0.001 | −0.38 | <0.01 | |
Average R | −0.5 | −0.49 | −0.29 | ||||
(B) Correlation coefficients for coral skeletal δ 13 C and extension rate (3-year smoothed) | |||||||
R All data 3 pt | p | R Before 1960 | p | R After 1960 | p | ||
Fiji 1F | −0.59 | <0.001 | −0.71 | <0.001 | −0.01 | <0.01 | |
Fiji AB | −0.64 | <0.001 | −0.47 | <0.001 | −0.14 | <0.01 | |
Tonga TNI2 | −0.77 | <0.001 | −0.80 | <0.001 | −0.28 | <0.01 | |
Rarotonga 2R | −0.71 | <0.001 | −0.70 | <0.001 | −0.22 | <0.01 | |
Ta’u-1 | −0.57 | <0.001 | −0.50 | <0.001 | −0.69 | <0.01 | |
Average R | −0.65 | −0.64 | −0.27 | ||||
With 13 C Suess effect subtracted (see Methods) | |||||||
(C) Correlation coefficients for coral skeletal δ 13 C-Suess effect and extension rate | |||||||
R All data | p | R Before 1960 | p | R After 1960 | p | ||
Fiji 1F | −0.42 | <0.001 | −0.45 | <0.001 | −0.58 | <0.01 | |
Fiji AB | −0.39 | <0.001 | −0.32 | <0.001 | −0.02 | <0.01 | |
Tonga TNI2 | −0.58 | <0.001 | −0.66 | <0.001 | −0.47 | <0.01 | |
Rarotonga 2R | −0.49 | <0.001 | −0.49 | <0.001 | −0.17 | <0.01 | |
Ta’u-1 | −0.28 | <0.001 | −0.30 | <0.001 | −0.45 | <0.01 | |
Average R | −0.43 | −0.44 | −0.34 | ||||
(D) Correlation coefficients for coral skeletal δ 13 C-Suess effect and extension rate (3-year smoothed) | |||||||
R All data 3 pt | p | R Before 1960 | p | R After 1960 | p | ||
Fiji 1F | −0.61 | <0.001 | −0.66 | <0.001 | −0.77 | <0.01 | |
Fiji AB | −0.54 | <0.001 | −0.45 | <0.001 | −0.1 | <0.01 | |
Tonga TNI2 | −0.71 | <0.001 | −0.79 | <0.001 | −0.64 | <0.01 | |
Rarotonga 2R | −0.64 | <0.001 | −0.65 | <0.001 | −0.2 | <0.01 | |
Ta’u-1 | −0.4 | <0.001 | −0.44 | <0.001 | −0.62 | <0.01 | |
Average R | −0.58 | −0.60 | −0.47 | ||||