Table 3 Shannon diversity (H′) and Pielou’s evenness (J′) for the entire 4 min UBAT sampling period at each depth (mean, n = 4), and maximum Shannon diversity (H′max) and the time (s) to reach ½ of the maximum diversity (K) calculated from non-linear regression of Shannon diversity at 30s intervals during UBAT profiles.

From: Bioluminescence as an ecological factor during high Arctic polar night

Depth (m) H′ J′ H′max (95% CI) K (95% CI)
1 1.11 0.57 1.19(1.0–1.3) 14.1(0.16–28.1)
20 1.14 0.59 1.09(1.0–1.2) 11.6(5.2–18.1)
40 1.33 0.69 1.69(1.5–1.9) 57.7(33.4–82.0)
60 1.29 0.66 1.47(1.4–1.6) 27.2(15.6–38.7)
80 1.35 0.69 1.42(1.3–1.5) 14.8(7.9–21.8)
100 1.34 0.69 1.50(1.3–1.7) 23.0(4.2–41.8)
120 1.25 0.64 1.42(1.3–1.5) 12.0(5.3–18.6)