
TY  - JOUR
A1  - Booth, David T. 
A1  - Astill, Katherine 
T1  - Incubation temperature, energy expenditure and hatchling size in the green turtle (<emph type="2">Chelonia mydas</emph>), a species with temperature-sensitive sex determination
JF  - Australian Journal of Zoology
JO  - Aust. J. Zool.
Y1  - 2001
VL  - 49
IS  - 4
SP  - 389
EP  - 396
KW  - 
UR  - https://doi.org/10.1071/ZO01006 
N2  - Eggs from the Heron Island, Great Barrier Reef, nesting population of green turtles (Chelonia mydas) were incubated at all-male-determining (26&#x02DA;C) and all-female-determining (30&#x02DA;C) temperatures. Oxygen consumption and embryonic growth were monitored throughout incubation, and hatchling masses and body dimensions were measured from both temperatures. Eggs hatched after 79 and 53 days incubation at 26&#x02DA;C and 30&#x02DA;C respectively. Oxygen consumption at both temperatures increased to a peak several days before hatching, a pattern typical of turtle embryos, and the rate of oxygen was higher at 30&#x02DA;C than 26&#x02DA;C. The total amount of energy consumed during incubation, and hatchling dimensions, were similar at both temperatures, but hatchlings from 26&#x02DA;C had larger mass, larger yolk-free mass and smaller residual yolks than hatchlings from 30&#x02DA;C. Because of the difference in mass of hatchlings, hatchlings from 30&#x02DA;C had a higher production cost. 
ER  -

