Observation time

Diatom aldehydes

LC50 (LFL-UFL)

LC99 (LFL-UFL)

χ2 (df = 8)

12

HD

17.76 (14.56 - 22.46)

44.18 (32.14 - 66.68)

482.33*

OD

8.71 (6.42 - 13.04)

19.44 (14.49 - 32.91)

85.34*

DD

7.55 (5.09 - 12.68)

17.49 (12.46 - 34.55)

127.20*

24

HD

13.37 (9.84 - 19.78)

30.76 (23.05 - 49.99)

81.8*

OD

8.43 (5.91 - 13.72)

19.31 (13.93 - 37.51)

108.37*

DD

7.54 (5.09 - 12.68)

17.49 (12.46 - 34.55)

127.20*