Table 2 Number of eggs in each treatment (% of total) to form white spots (WS) and number of WS (% of WS) that formed whilst in hypoxia and normoxia.

From: Synchronised nesting aggregations are associated with enhanced capacity for extended embryonic arrest in olive ridley sea turtles

 

Nesting tactic

Control

3-day

3.5-day

4-day

8-day

15-day

30-day

P-value*

Total WS formed

Non-arribada

69 (100%)

52 (100%)

54 (100%)

53 (100%)

53 (88.1%)

36 (69.2%)

55 (98.2%)

<0.0001

Arribada

46 (97.9%)

43 (97.7%)

41 (97.6%)

42 (100%)

43 (97.7%)

40 (97.6%)

33 (78.6%)

<0.0001

WS formed in hypoxia

Non-arribada

N/A

45 (86.5%)

54 (100%)

34 (64.2%)

29 (54.7%)

34 (94.4%)

55 (100%)

<0.0001

Arribada

N/A

39 (90.7%)

41 (100%)

32 (76.2%)

43 (100%)

40 (100%)

33 (100%)

<0.0001

WS formed in normoxia

Non-arribada

69 (100%)

7 (13.5%)

0 (0%)

19 (35.8%)

24 (45.3%)

2 (5.6%)

0 (0%)

<0.0001

Arribada

46 (100%)

4 (9.3%)

0 (0%)

10 (23.8%)

0 (0%)

0 (0%)

0 (0%)

<0.0001

  1. Olive ridley eggs were collected from non-arribada and arribada nesting females and incubated following different durations of post-oviposition hypoxia.
  2. *Chi-squared tests were used to assess between-treatment differences for separated arribada and non-arribada data.
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