Table 3. Relationship between iron pathway prevalence, taxonomy and iron differences between pairs of sites.

	All sites	Coastal sites	Open Ocean sites
Number of sites	45	22	23
IMP×dFe	0.06*	0.14*	ns
IMP×Taxo	0.38**	0.34**	0.27**
Taxo×dFe	ns	ns	ns

*: p<0.05,

**: p<0.01,

***: p<0.001,

ns: not significant.