Table 2. Desulfovibrio Presence/Absence.

Coral & Time	Colony 1		Colony 2		Colony 3		Colony 4
Site	T-5d	T-22d	T-5d	T-22d	T-5d	T-22d	T-5d	T-22d
Ref	+	−	−	−	+	−	+	−
Far-1	−	−	+	−	+	−	−	−
Far-2	+	−	+	−	+	−	+	−
Near-1	+	+	+	+	+	+	+	+
Near-2	+	+	+	died	+	+	+	−

The presence (+) or absence (−) of Desulfovibrio as detected by genus-specific PCR amplification. No amplified product was detected in any colony at T0, so this time point is omitted from the table for simplicity. The T-22 days fragment for colony 2 died before T-5 days, and was the only mortality for the experiment. Desulfovibrio returned to undetectable levels for all colonies at all low-effluent sites by T-22 days (Ref, Far-1&2), yet remained detectable in most colonies at the high-effluent sites (Near-1&2).