Table 2. Meiofauna abundance, relative abundance of taxa, and the diversity measures species richness (S), Shannon diversity (H'_loge), and Pielou's evenness index (J').

Habitat	pompei worm communities					tubeworm communities						mussel communities			bare basalt communities
Samples	P1	P2	P3	P4	P5	T1	T2	T3	T4	T5	T6	M1	M2	M3	B1	B2	B3	B4
Abundance (no. individuals)
Total ab. per sample area	408	7453	1498	252	782	1219	29279	4242	65	60	978	11914	4444	4524	582	141	35	1896
Total ab. 10 cm−2	36	217	266	71	474	20	976	61	1	1	12	87	58	72	13	5	1	51
Relative abundance of taxa (%)
Rel. ab. Nematoda [%]	0	0	0	0	0	78	97	76	31	18	58	49	43	29	4	13	34	1
Rel. ab. Copepoda [%]	99	100	99	99	99	18	2	23	38	80	35	49	53	66	23	63	31	92
Rel. ab. Ostracoda [%]	0	0	0	0	0	0	1	1	0	0	2	1	1	1	1	1	9	1
Rel. ab. Acari [%]	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0
Rel. ab. Foraminifera [%]	1	0	1	1	1	4	1	1	31	2	5	1	2	4	72	23	26	6
Diversity measures
S total	5	5	4	6	7	11	17	20	10	8	23	29	31	28	32	25	20	34
H'loge total	0.11	0.45	0.18	0.40	0.21	1.13	0.44	1.35	2.00	1.75	1.72	2.34	2.60	2.42	1.18	2.16	2.74	1.42
J' total	0.07	0.28	0.13	0.22	0.11	0.47	0.15	0.45	0.87	0.84	0.55	0.69	0.76	0.73	0.34	0.67	0.91	0.40

P (pompei worm; P1–P5), T (tubeworm; T1–T6), M (mussel; M1–M3), and B (bare basalt; B1–B4).