Table 1. Alpha diversity index of the relative abundance of microbiota in megalopa and water for megalopa rearing after being treated with different doses of probiotics (A, B, C, D)

Samples	Observed_species	Chao1	Shannon	Simpson
A1	300	358.882	0.677	0.116
A2	844	1,030.756	1.758	0.323
B1	551	619.578	1.664	0.305
B2	269	290.577	4.876	0.932
C1	535	636.629	1.401	0.267
C2	910	1,051.500	0.959	0.152
D1	937	988.663	6.081	0.946
D2	571	636.317	1.889	0.336
E1	522	752.682	3.951	0.845
E2	1,052	1,286.377	3.922	0.805
F1	461	618.898	3.812	0.842
F2	935	1,188.055	4.173	0.855
G1	469	518.565	4.339	0.882
G2	791	1,045.159	1.863	0.383
H1	527	590.029	4.348	0.889
H2	755	968.481	4.116	0.865

A1 and A2, megalopa in 2.5 mg/L; B1 and B2, megalopa in 5.0 mg/L; C1 and C2, megalopa in 7.5 mg/L; D1 and D2, megalopa in 0.0 mg/L; E1 and E2, water at treatment 2.5 mg/L; F1 and F2, water at treatment 5.0 mg/L; G1 and G2, water at treatment 7.5 mg/L; H1 and H2, water at treatment 0.0 mg/L.