Table 1.
Kruskal-Wallis tests (p value, H statistic) of each thyroid measurements within each exposure regime and concentration. Concentrations: 30 = 30 mg/L perchlorate, 100 = 100 mg/L perchlorate. Exposure regime: Downshift = fish began in contaminated water and were moved to clean water on the given day post fertilization (dpf), Upshift = fish began in clean water and were moved to contaminated water on the given dpf.
| 30 upshift | 30 downshift | 100 upshift | 100 downshift | |
|---|---|---|---|---|
| Area of colloid | <0.0001 39.72 |
0.001 24.35 |
<0.0001 56.72 |
<0.0001 32.08 |
| Area of follicles | <0.0001 37.38 |
0.002 22.41 |
<0.0001 55.24 |
<0.0001 30.85 |
| Total number of follicles |
0.0005 28.08 |
NS | <0.0001 44.88 |
0.032 15.28 |
| Thyrocyte cell height |
NS | 0.046 14.31 |
0.019 18.29 |
NS |
| Angiogenesis score |
<0.0001 60.26 |
<0.0001 52.59 |
<0.0001 70.73 |
<0.0001 33.40 |
| Circularity | NS | NS | 0.002 24.18 |
0.034 15.19 |
| Area without colloid |
<0.0001 34.38 |
0.005 20.48 |
<0.0001 51.48 |
<0.0001 25.69 |