. 2021 Apr 4;11(10):5150–5163. doi: 10.1002/ece3.7407

TABLE 1.

Basic environmental information, biological information, and alpha diversity results of gut microbial community pertaining for the different group studied of Megalobrama terminalis

		Nonmigration				Migration
		S1	S2	S3	Overall	M1	M2	M3	Overall
Environmental information	Sample period	July 23–29	July 17–23	July 11–16		July 4–10	June 27–July 3	June 20 to 26
	Temperature (℃)	28.8 ± 0.2	28.1 ± 0.3	28.2 ± 0.4	28.4 ± 0.3	28.7 ± 0.4	28.6 ± 0.3	28.9 ± 0.3	28.7 ± 0.3
	Salinity (‰)	0.15 ± 0.03^b	0.09 ± 0.02^ab	0.08 ± 0.02^ab	0.11 ± 0.02*	0.01 ± 0.00^a	0.01 ± 0.00^a	0.01 ± 0.00^a	0.01 ± 0.00
	pH	8.1 ± 0.1	8.1 ± 0.1	7.9 ± 0.2	8.0 ± 0.1	8.2 ± 0.2	8.3 ± 0.2	7.8 ± 0.2	8.1 ± 0.2
	DO (mg/L)	6.6 ± 0.1^a	6.3 ± 0.2^a	6.8 ± 0.2^ab	6.6 ± 0.2	7.1 ± 0.1^b	7.7 ± 0.2^b	6.9 ± 0.2^ab	7.2 ± 0.2*
Biological information	SL ± SD	174 ± 22.6^a	186 ± 16.6^a	225 ± 22.3^ab	205 ± 18.4	244 ± 28.4^b	265 ± 21.1^b	256 ± 14.4^b	255 ± 21.8*
	W_t ± SD	96.8 ± 21.3^a	120 ± 33.2^a	257 ± 29.1^b	158 ± 27.5	359 ± 25.5^c	395 ± 35.1^c	352 ± 26.3^c	369 ± 28.4*
	GSI (%)	0.7 ± 0.1^a	0.9 ± 0.1^a	5.3 ± 1.3^b	3.4 ± 0.5	5.9 ± 1.4^b	8.4 ± 2.3^b	5.6 ± 0.9^b	6.6 ± 1.5*
	HSI (%)	1.4 ± 0.12^a	2.2 ± 0.15^b	2.6 ± 0.13^c	2.1 ± 0.14*	2.1 ± 0.12^bc	1.2 ± 0.11^a	1.0 ± 0.11^a	1.4 ± 0.11
	K	1.7 ± 0.12^a	2.0 ± 0.16^ab	2.1 ± 0.21^ab	1.9 ± 0.16	2.2 ± 0.24^b	2.3 ± 0.23^b	2.2 ± 0.16^b	2.2 ± 0.21*
	Sex mature ratio (%)	0	0	23.7	7.9	83.9	100	100	94.6
Alpha diversity estimates	OTUs	1,261 ± 348.83^b	1,876 ± 293.36^b	1,305 ± 617.70^ab	1,478 ± 405.61*	1,226 ± 392.15^ab	802 ± 224.39^a	576 ± 174.29^a	868 ± 232.56
	Observed_species	1,258 ± 156.72^a	1,663 ± 228.77^a	1,304 ± 272.17^a	1,408 ± 232.11*	1,184 ± 146.49^a	732 ± 112.91^ab	586 ± 74.97^b	834 ± 117.21
	Chao1	1,396.89 ± 168.89^a	1,881.23 ± 238.08^a	1,512.20 ± 282.11^a	1,596 ± 230.82*	1,383.45 ± 146.75^ab	852.21 ± 124.78^b	749.69 ± 117.29^b	995.11 ± 128.97
	Shannon	7.12 ± 0.58^a	6.77 ± 0.61^a	5.27 ± 0.67^ab	6.39 ± 0.63*	4.82 ± 0.24^b	4.87 ± 0.37^b	4.38 ± 0.27^b	4.69 ± 0.29

Different superscript letters indicate significant differences in different groups, p < .05.

Abbreviations: DO, dissolved oxygen; GSI, gonadosomatic index; HSI, hepatosomatic index; K, Fatness; SL, standard length; W_t, body weight.

Means significant difference between two populations, p < .05.