TABLE 2.

Alpha diversity index analysis of symbiotic bacteria in the coral culture system.

Sample	OTU number	Ace	Chao	Shannon	Simpson	Coverage
coral_1	30855	249.1679	256.5556	1.3627	0.6033	99.91%
coral_2	31511	127.4174	157.7500	0.8403	0.7541	99.94%
coral_3	31731	407.2778	409.1579	2.9992	0.2437	99.95%
coral_4	32228	411.5785	414.5000	3.3771	0.1833	99.95%
water_1	42886	533.0147	499.2113	1.5774	0.4193	99.68%
water_2	37960	467.1878	463.1000	2.6786	0.1588	99.70%
water_3	36706	531.7272	488.5789	2.2264	0.2431	99.68%
water_4	33842	246.4882	238.0000	1.4988	0.3575	99.84%
stone_1	37081	1856.7257	1824.1246	5.7499	0.0103	99.24%
stone_2	30049	1738.6738	1704.2672	5.4152	0.0190	98.84%
stone_3	31703	1867.3839	1844.3333	5.5812	0.0118	98.79%
stone_4	38012	1601.2413	1580.1416	5.5155	0.0104	99.27%