Table 1. Comparison of Poisson regression models to assess the emigration rate.

	Poisson model			Poisson with random intercept			Poisson with random intercept and slope
	Coef.	SE	p	Coef.	SE	p	Coef.	SE	p
Intercept	3.964	0.073	<0.001	3.961	0.089	<0.001	3.956	0.114	<0.001
Tank	−0.147	0.113	0.195	−0.147	0.113	0.195	−0.150	0.113	0.187
Time (days)	−0.011	0.003	0.001	−0.011	0.003	0.001	−0.010	0.004	0.011
Tank*Time	−0.011	0.005	0.029	−0.011	0.005	0.029	−0.011	0.005	0.036
AIC	361.85			31.28			45.76