Table 2.

Effect size (z-score) and significance (p) for zero-inflated negative binomial-distributed generalized linear models relating CPUE (sharks/set) of Bull Sharks in each life stage with year and environmental and spatial variables from the NCDMF gillnet survey of Pamlico Sound, NC in both the whole sound and high catch area.

Whole Sound	GLM	Combined Juvenile		YOY		Age 1+
Variable		CPUE	Zero-Inflation	CPUE	Zero-Inflation	CPUE	Zero-Inflation
Depth	z	0.751	1.021	1.631	1.436	0.765	0.612
	p	0.453	0.307	0.103	0.151	0.444	0.541
Temp	z	3.826	1.067	3.124	1.812	3.338	1.066
	p	<0.001	0.286	0.002	0.07	<0.001	0.286
Sal	z	6.339	1.099	6.767	3.522	5.656	0.98
	p	<0.001	0.272	<0.001	<0.001	<0.001	0.327
DO	z	−0.746	1.074	−672	−1.124	−0.52	0.017
	p	0.455	0.283	0.501	0.901	0.603	0.986
SAV Dist	z	N/A	−1.05	N/A	−15.065	N/A	−0.711
	p	N/A	0.294	N/A	<0.001	N/A	0.477
High Catch Area	GLM	Combined Juvenile		YOY		Age1+
Variable		CPUE	Zero-Inflation	CPUE	Zero-Inflation	CPUE	Zero-Inflation
Temp	z	2.841	1.478	1.909	0.749	2.561	1.134
	p	0.005	0.139	0.056	0.454	0.01	0.257
Sal	z	3.394	1.608	4.713	2.29	2.897	1.617
	p	<0.001	0.108	<0.001	0.022	0.003	0.106

Significant relationships (α = 0.05) are in bold.