Response variable	Predictor variable	Family	Population	F	df	p
PC1	pH value	Gaussian	18	4.88	1,17	0.042
PC2	pH value	Gaussian	18	5.25	1,17	0.034
Avg. standard length	pH value	Gaussian	18	4.85	1,17	0.044
Avg. plate count	pH value	Gaussian	18	11.3	1,17	0.003
Avg. first dorsal spine	pH value	Gaussian	18	4.46	1,17	0.050.
Avg. second dorsal spine	pH value	Gaussian	18	4.83	1,17	0.043
Avg. pelvic spine	pH value	Gaussian	18	7.42	1,17	0.015
Avg. length of pelvis	pH value	Gaussian	18	11.3	1,17	0.004
Avg. height of pelvis	pH value	Gaussian	18	10.4	1,17	0.005