Table 2.

Pearson correlation coefficients between the four principal components analysis axes and the 16 functional traits. Significant P-values are in bold

Functional traits	PC1 (28.9%)	PC2 (24.1%)	PC3 (10.3%)	PC4 (7.3%)
Mass	0.86	0.32	−0.12	0.04
Oral gape surface	0.30	−0.61	0.08	−0.21
Oral gape shape	0.06	0.20	−0.60	−0.19
Oral gape position	0.35	−0.74	0.20	0.10
Eye diameter	−0.59	0.65	−0.05	−0.17
Gill raker length	0.08	0.73	−0.34	−0.04
Gut length	0.38	0.53	0.09	−0.19
Eye position	0.41	−0.74	0.15	0.02
Body section shape	0.12	0.08	0.11	−0.85
Body section area	−0.79	−0.45	0.16	−0.07
Pectoral fin position	−0.10	−0.51	0.01	−0.52
Pectoral fin shape	−0.79	0.18	0.37	0.04
Caudal peduncle throttling	0.65	0.44	0.53	0.00
Caudal fin shape	0.66	0.41	0.50	0.04
Fins area ratio	0.52	−0.41	−0.62	0.08
Fins area	0.78	−0.04	−0.01	−0.09