TABLE 4.

Comparison of standard ecological and molecular estimates of sequence diversity for Cariaco Basin water samples

Community	Diversity estimate
	No. of distinct sequences	Shannon-Weiner index	Gene diversity	Nucleotide diversity	θ(π)a
320 m	9	0.32	0.28	0.10 ± 0.05	83.9 ± 36.6
500 m	44	1.33	0.95	0.30 ± 0.15	84.9 ± 37.2
1,310 m	49	1.38	0.94	0.30 ± 0.15	88.7 ± 38.8

^a The values are not directly comparable because different numbers of nucleotide positions were examined.