Table 5 Mean hatchling traits for each treatment.

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

No. hatchlings measured

Non-arribada

20

20

8

20

0

0

0

Arribada

9

11

2

6

6

8

0

Mass (g)

Non-arribada

16.7 ± 0.2A*

17.8 ± 0.3B*

16.6 ± 0.3AB

16.5 ± 0.2A*

Arribada

14.3 ± 0.4XY *

14.8 ± 0.3X*

15.0 ± 1.5XY

12.8 ± 0.5Y*

13.7 ± 0.7XY

13.3 ± 0.3XY

Head Width (mm)

Non-arribada

14.2 ± 0.1A

14.4 ± 0.1A

14.3 ± 0.1A

14.3 ± 0.1A*

Arribada

14.1 ± 0.1XY

14.4 ± 0.1X

14.3 ± 0.3XY

13.6 ± 0.1Y*

13.8 ± 0.1XY

13.7 ± 0.1Y

Carapace Length (mm)

Non-arribada

41.3 ± 0.3 A*

41.8 ± 0.4A*

40.8 ± 0.4A

41.1 ± 0.4A*

Arribada

39.1 ± 0.4XY*

40.1 ± 0.4X*

40.1 ± 0.1XY

38.1 ± 0.2XY*

39.1 ± 0.4XY

37.6 ± 0.5Y

Carapace Width (mm)

Non-arribada

34.1 ± 0.16A

33.9 ± 0.4A

33.8 ± 0.3A

33.9 ± 0.3A*

Arribada

33.4 ± 0.4XY

34.4 ± 0.4X

34.8 ± 1.8XY

31.8 ± 0.6Y*

33.1 ± 0.8XY

31.9 ± 0.3Y

  1. Olive ridley eggs were collected from non-arribada and arribada nesting females and incubated following different durations of post-oviposition hypoxia.
  2. When superscript letters are the same, there was no significant between-group difference within nesting tactic according to an ANOVA and Tukey’s HSD post-hoc test. An asterisk (*) denotes a significant difference within each treatment between each nesting tactic according to an ANOVA and Tukey’s HSD post-hoc test.