Table 2.

Summary of ANOVA statistics for intraspecific comparisons of digestive enzyme activities among gut regions in five species of minnows

Enzyme	C. anomalum	C. ornatum	C. oligolepis	C. pauciradii	N. micropogon
Amylase	F2,29 = 8.06	F2,29 = 0.78	F2,29 = 9.87	F2,32 = 25.34	t = 0.19
	P < 0.01	P = 0.47	P < 0.01	P < 0.01	P = 0.85
Maltase	F2,23 = 0.51	F2,17 = 0.19	F2,29 = 94.42	F2,29 = 4.17	t = 1.04
	P = 0.61	P = 0.83	P < 0.01	P = 0.03	P = 0.32
Trypsin	F2,29 = 53.98	F2,23 = 1.09	F2,29 = 48.10	F2,32 = 16.83	t = 0.77
	P < 0.01	P = 0.36	P < 0.01	P < 0.01	P = 0.46
Aminopeptidase	F2,23 = 4.37	F2,14 = 4.35	F2,29 = 9.04	F2,29 = 5.55	t = 2.01
	P = 0.03	P = 0.04	P < 0.01	P = 0.01	P = 0.07
Lipase	F2,29 = 12.68	F2,29 = 9.92	F2,29 = 187.79	F2,32 = 42.51	t = 10.61
	P < 0.01	P < 0.01	P < 0.01	P < 0.01	P < 0.01

Data are presented in Fig. 1. Sample sizes for each species and enzyme are as follows: C. anomalum, amylase n = 10; maltase n = 8; trypsin n = 10; aminopeptidase n = 8; lipase n = 10. C. ornatum, amylase n = 10; maltase n = 6; trypsin n = 8; aminopeptidase n = 5; lipase n = 10. C. oligolepis, n = 10 for all enzymes. C. pauciradii, amylase n = 11; maltase n = 10; trypsin n = 11; aminopeptidase n = 10; lipase n = 11. N. micropogon, n = 6 for all enzymes