Seasonal and vertical distribution of planktonic bacteria and heterotrophic nanoflagellates in the middle Adriatic Sea

Table 2 Simultaneous effects of bacterial abundance, bacterial production and temperature on HNF abundance in the surface layers (0–10 m) of Kaštela Bay. R coefficient of correlation,r_p coefficient of partial correlation;a,b coefficients of multiple linear regression (a intercept;b slope;n=36);β (beta coefficient) regression coefficient b stated in terms of its standard deviation;R coefficient of multiple regression; R²(%) coefficient of multiple determination, i.e. measure of the proportion (percentage) of variance explained; ** P<0.01; * P<0.05

Variable	r	r _p	a	b	β	R	R² (%)
Bacterial abundance	0.754**	0.665**	−4,901.48	0.010	0.693	0.760**	57.76
Temperature	0.493**	0.141	−4,901.48	79.12	0.111	0.760**	57.76
Bacterial abundance	0.754**	0.745**	−5,290.96	0.010	0.722	0.773**	59.69
Bacterial production	0.306*	0.255	−5,290.96	51.68	0.170	0.773**	59.69
Temperature	0.493**	0.454**	−3,982.12	84.526	0.445	0.530**	28.06
Bacterial production	0.306*	0.224	−3,982.12	36.080	0.201	0.530**	28.06
Bacterial abundance	0.754**	0.668**	−5,775.60	0.010	0.680	0.775**	60.13
Temperature	0.493**	0.105		74.906	0.080
Bacterial production	0.306*	0.237		27.181	0.159

ISSN: 1438-3888