Table 2.

Summary of species richness and biotic indices using quantitative data of Chironomidae in the four major rivers in South Korea.

	Site	GPS	No. of			DI	H’	RI	J’	Dominant Species
			Genus	Species	Individuals
Han River	IP	37°24′7.9″, 127°32′23.46″	8	11	216	0.56 ± 0.06	2.56 ± 0.02	2.09 ± 0.26	0.77 ± 0.12	Tanytarsus tamagotoi
	YJ	37°19′30.92″, 127°36′39.72″	11	13	132	0.50 ± 0.06	2.92 ± 0.21	2.52 ± 0.24	0.83 ± 0.00	Tanytarsus tamagotoi
	GC	37°16′33.96″, 127°41′4.58″	10	14	139	0.79 ± 0.01	2.50 ± 0.23	2.06 ± 0.39	0.79 ± 0.06	Microchironomus tener
Total			14	19	504	0.55 ± 0.06	2.66 ± 0.25	2.23 ± 0.33	0.80 ± 0.07
Geum River	SJ	36°28′25.11″, 127°15′46.06″	11	11	78	0.83 ± 0.24	1.72 ± 1.08	1.42 ± 1.32	0.84 ± 0.17	Procladius choreus
	GJ	36°27′51.21″, 127°05′59.65″	11	13	66	0.60 ± 0.12	2.41 ± 0.20	1.98 ± 0.26	0.83 ± 0.03	Lipiniella moderata
	BJ	36°19′16.6″, 126°56′34.03″	8	8	160	0.92 ± 0.12	1.16 ± 0.46	0.89 ± 0.73	0.67 ± 0.24	Tanytarsus tamagotoi
Total			16	20	304	0.78 ± 0.20	1.76 ± 0.77	1.43 ± 0.84	0.78 ± 0.16
Yeongsan river	SC	35°03′55.2″, 126°45′59.5″	9	10	22	0.55 ± 0.03	2.39 ± 0.22	2.14 ± 0.11	0.94 ± 0.04	Tanytarsus tamagotoi
Total			9	10	22	0.55 ± 0.03	2.39 ± 0.22	2.14 ± 0.11	0.94 ± 0.04
Nakdong river	GM	36°14′11.3″, 128°20′43.6″	11	14	75	0.53 ± 0.19	2.60 ± 0.76	2.10 ± 0.40	0.90 ± 0.01	Tanytarsus tamagotoi
	DS	35°44′04.7″, 128°25′02.1″	11	14	108	0.49 ± 0.03	2.80 ± 0.12	2.07 ± 0.60	0.89 ± 0.03	Tanytarsus formosanus
Total			17	23	183	0.51 ± 0.12	2.70 ± 0.46	2.09 ± 0.42	0.89 ± 0.02

See locality abbreviations in Figure 1.