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Table 6 Kruskal–Wallis H test and post hoc Dunn’s multiple comparison test for fluorometric ratios per treatment

From: CO2-induced fertilization impairment in Strongylocentrotus droebachiensis collected in the Arctic

Treatment comparison test

~180 µatm

~380 µatm

~750 µatm

~1,000 µatm

~380 µatm

~750 µatm

~1,000 µatm

~2,000 µatm

~750 µatm

~1,000 µatm

~2,000 µatm

~1,000 µatm

~2,000 µatm

~2,000 µatm

Difference in rank sum

−14.05

−4.10

38.41

37.61

9.95

52.46

51.66

42.51

41.71

−0.80

p value

ns

ns

**

**

ns

***

***

***

***

ns

  1. Significance levels: p < 0.01 (**) and p < 0.001 (***), N = 126