Table 4. Results of general linear models that tested the significance of specific factors on fish calling intensity.

	Manual detection			Automatic detection
Silver perch Bairdiella chrysoura	df	F	p	df	F	p
Location	3	64.78	<0.001	3	14.59	<0.001
Month	4	15.56	<0.001	4	17.84	<0.001
Day length	1	0.59	0.81	1	1.00	0.32
Lunar phase	3	0.22	0.88	3	0.84	0.47
Tidal range	1	5.68	0.02	1	1.20	0.27
Temperature anomaly	1	9.27	<0.001	1	6.84	0.01
R Squared	0.53			0.42
Spotted seatrout Cynoscion nebulosus
Location	3	328.87	<0.001	3	11.75	<0.001
Month	6	56.26	<0.001	6	18.94	<0.001
Day length	1	154.53	<0.001	1	59.40	<0.001
Lunar phase	3	11.40	<0.001	3	19.64	<0.001
Tidal range	1	25.80	<0.001	1	30.54	<0.001
Temperature anomaly	1	11739.73	<0.001	1	24.44	<0.001
R Squared	0.73			0.47

Values in bold are significant at p<0.05.