Table 1.

Summary results of analyses for both dataset. The root mean squared error (RMSE) and the 95% C.I. coverage are shown. See Figures 2 and 3 for a detailed plot of individual estimates for the different scenarios assessed

	Normal model		Negative binomial model
	RMSE	Coverage	RMSE	Coverage
Proof of concept analysis: common carp dataset
2 dual data sites	1,310	0.39	11	1.00
3 dual data sites	4,337	0.39	11	0.97
4 dual data sites	15,403	0.37	12	0.97
5 dual data sites	44,340	0.44	10	0.95
Field data analysis: Idaho giant salamander dataset
2 dual data sites	0.06	0.82	0.03	1.00
3 dual data sites	0.08	0.84	0.02	1.00