Table 1.

Sample sizes per treatment group used for statistical analysis

		Treatment group
Dose	Chorion	24 hpf Survival	24 hpf Tail flicks	120 hpf Survival	120 hpf Spinal curvature	120 hpf Orientation/swim bladdera
Control	+	24	21	24	24	22
Control	–	24	21	24	24	21
0.6 ppm	+	22	20	22	22	22
0.6 ppm	–	22	22	22	22	21
1.0 ppm	+	22	19	22	22	18
1.0 ppm	–	22	21	22	22	21
2.0 ppm	+	22	21	22	22	19
2.0 ppm	–	22	21	22	22	13
3.0 ppm	+	22	21	22	22	7
3.0 ppm	–	22	21	22	22	8
4.0 ppm	+	22	21	22	22	2
4.0 ppm	–	22	21	22	22	1

^aSample sizes in this group vary greatly because of the inability to asses swim bladder inflation/embryo orientation in dead embryos.