Table 1.

Gene aprA clone library data for three sediment samples of the Peru margin and the Black Sea each.

Sampling site	No. of clones analyzed	Sequences classified as relatives to:
		Desulfonema magnum	Desulfococcus multivorans	Desulfobulbus elongatus	Desulfomonile tiedjei	Desulfovibrio baarsii	Desulfobacterium anilini	Desulfacinum, Desulforhabdus, Syntrophobacter
		No. of clones (%)/sequence similarity within the group in %/sequence similarity to the next relative in %
PERU MARGIN (SITE 1227)
3.6 mbsf	50		22 (44)/100/90		5 (10)/81/74–77	6 (12)/100/85		17 (34)/100/66–69
65.3 mbsf	0
121.4 mbsf	0
BLACK SEA (SITE 20)
0.15 mbsf	31		2 (6)/100/90		20 (65)/72–90/75–84		4 (13)/78/79–81	5 (16)/87/68–72
2.7 mbsf	45	1 (2)/100/91		44 (98)/97/87
5.8 mbsf	24				20 (83)/98/83		4 (17)/83/81–84