Table 4. NASC by transect using three-side fyke nets in Yedang Reservoir (September)

Transect line	A		B (daytime)		B (nighttime)
	ni	NASC	ni	NASC	ni	NASC
1	6	106.4	2	464.0	3	304.0
2	6	147.9	3	1,044.8	3	181.5
3	7	343.6	2	210.6	2	992.5
4	6	252.0	3	551.1	4	1,265.7
5	7	292.5	2	490.4	3	225.8
6	6	154.9	2	393.9	2	35.5
7	7	34.2	-	-	-	-
8	6	127.7	-	-	-	-
9	3	93.3	-	-	-	-
∑i=1Nni	54.0		14.0		17.0
Survey area (m2)	0.126 × 107		0.013 × 107		0.013 × 107
Coefficient of variation (%)	20.7		23.0		42.3

A, Survey area A site; B, Survey area B site; NASC, nautical area scattering coefficients; -, not detected.