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Table 2 Mean speed values (±standard deviation, SD) in millimetres per second

From: Pseudodiaptomus marinus Sato, 1913, a new invasive copepod in Lake Faro (Sicily): observations on the swimming behaviour and the sex-dependent responses to food

Case

V x (mean ± SD) (mm s−1)

V z (mean ± SD) (mm s−1)

V(mean ± SD) (mm s−1)

V x max (mean ± SD) (mm s-1)

V z max (mean ± SD) (mm s−1)

Filtered water

  Males

6 ± 3

6 ± 3

6 ± 3

16 ± 18

20 ± 21

  Females

7 ± 6

7 ± 6

8 ± 5

22 ± 24

31 ± 30

  Ovigerous f.

6 ± 5

6 ± 5

8 ± 5

21 ± 23

24 ± 23

Food

  Males

6 ± 3

6 ± 5

7 ± 3

20 ± 62

21 ± 54

  Females

8 ± 7

7 ± 6

9 ± 8

36 ± 23

45 ± 25

  Ovigerous f.

7 ± 6

6 ± 4

8 ± 5

27 ± 26

24 ± 20

  1. Mean speed values (±standard deviation, SD) in millimetres per second for males, females and ovigerous females of P. marinus in filtered water and with food.