Table 4.

Correlation of Δδ¹⁵N_x–Phe (difference in δ¹⁵N of an individual amino acid (x) from that of phenylalanine) with Δδ¹⁵N_Glx–Phe in the host coral fraction of corals (n = 18).

Δδ15Nx–Phe	Statistics
x	Slope	Offset	r
Ala	1.19	−0.18	0.720 *
Gly	0.98	−5.25	0.637 *
Val	1.46	−1.63	0.802 **
Leu	1.78	−1.07	0.830 ***
Ile	1.94	−6.08	0.611 *
Pro	1.72	−9.49	0.587
Asx	0.86	1.24	0.841 ***
Thr	0.34	−2.09	0.221
Ser	0.83	−2.46	0.608 *
Met	0.07	−0.52	0.073

Slope (a) and offset (b) of linear regression model (Δδ¹⁵N_x–Phe = a Δδ¹⁵N_Glx–Phe + b). Correlation was evaluated by ANOVA. ***: p < 0.005; **: p < 0.01; and *: p < 0.05.