Table 2.

Summary of linear regression correlation tests for CPUA of Round Goby and Percidae species in Big Otter Creek and the Ausable River, and the CPUA of the combined Percidae species in both tributaries. Sites where Round Goby CPUA = 0 were excluded

	Coefficients	Estimate	S.E	t	p	Adj. R2	Spearman
Big Otter Creek	Intercept	0.15	0.040	3.58	0.0011	− 0.032	0.016
	Johnny Darter	0.023	0.26	0.089	0.93
	Intercept	0.13	0.04	3.4	0.0017	0.055	0.29
	Logperch	15	9.1	1.7	0.1
	Intercept	0.17	0.049	3.6	0.0012	− 0.015	− 0.13
	Blackside Darter	− 1.1	1.4	− 0.73	0.47
	Intercept	0.15	0.043	3.49	0.0015	− 0.032	0.0010
	All Percidae spp.	0.0013	0.23	0.006	0.99
Ausable River	Intercept	0.13	0.062	2.0	0.06	− 0.075	0.04
	Johnny Darter	0.14	0.9	0.16	0.88
	Intercept	0.11	0.059	1.8	0.09	− 0.042	0.18
	Logperch	3.1	4.7	0.66	0.52
	Intercept	0.15	0.055	2.8	0.016	− 0.054	− 0.15
	Blackside Darter	− 3.8	7.1	− 0.53	0.6
	Intercept	0.15	0.055	2.8	0.016	− 0.050	− 0.15
	Greenside Darter	− 0.27	0.48	− 0.56	0.58
	Intercept	0.15	0.065	2.3	0.039	− 0.068	− 0.093
	All Percidae spp.	− 0.12	0.37	− 0.34	0.74