Green Turtle
| Breeding season | Late October to February
|
Years between breeding
| Two to eight years
|
| Age at first female breeding | 45 years |
Age at recruitment from pelagic to benthic life phase
| Four to seven years (30 to 40cm carapace length)
|
| Nesting female length | 107cm (range from 91 - 124cm)
|
| Nesting female weight | 130kg (range from 98 - 184kg)
|
| Clutch size | 115 eggs (range from 62 - 153 eggs)
|
Hatchling emergence season
| December to May
|
Hatchling success
| 84 per cent |
| Hatchling size | 4.97cm (range 4.02 - 5.19cm) |
| Hatchling weight | 24.83g (range from 19.8 - 28.4g) |
| Predators of hatchlings | Crabs, herons, dingoes and fish such as trevally and sharks |
View a map of Green Turtle Nesting Sites
Loggerhead turtle
| Breeding season | Late October to early March, peaking in December
|
Years between breeding
| Three to four years
|
| Age at first female breeding | 20 to 25 years |
Age at recruitment from pelagic to benthic life phase
| About 15 years (60cm carapace length)
|
| Nesting female length | 95.9cm (range from 85 - 108cm)
|
| Nesting female weight | 99kg (range from 76 - 149kg)
|
| Clutch size | 127 eggs (range from 89 - 151 eggs)
|
Hatchling emergence season
| December to April
|
Hatchling success
| 80 per cent |
| Hatchling size | 4.33cm (range 4.13 - 4.49cm) |
| Hatchling weight | 19.2g (range from 17 - 20.4g) |
| Predators of hatchlings | Foxes, kookaburras, crows, raptors, gulls, reef egrets, ghost crabs and fish such as trevally and sharks
|
View a map of Loggerhead Turtle Nesting Sites
Hawksbill turtle
| Breeding season | Year-round, concentrated from November to February, peaking in January
|
Years between breeding
| Two to five years
|
| Age at first female breeding | 30 - 35 years |
Age at recruitment from pelagic to benthic life phase
| Four to seven years (30cm carapace length)
|
| Nesting female length | 81.6cm (range from 63.5 - 91cm)
|
| Nesting female weight | 50.4kg (range from 32 - 72kg)
|
| Clutch size | 122 eggs (range from 18 - 210 eggs)
|
Hatchling emergence season
| Year-round concentrated from February to April
|
Hatchling success
| 79 per cent |
| Hatchling size | 3.98cm (range 3.2 - 4.36cm) |
| Hatchling weight | 13.8g (range from 8 - 17.5g) |
| Predators of hatchlings | Gulls, reef egrets, ghost crabs, crocodiles, fish, sharks, crabs and dingoes
|
View a map of Hawksbill Turtle Nesting Sites
Flatback turtle
| Breeding season | November to February
|
Years between breeding
| One to three years
|
| Age at first female breeding | 20 years |
| Nesting female length | 94cm (range from 88 - 96cm)
|
| Nesting female weight | 82kg (range from 70 - 90kg)
|
| Clutch size | 54 eggs
|
Hatchling emergence season
| January to April
|
Hatchling success
| 80 per cent |
| Hatchling size | 6.1cm (range 5.66 - 6.55cm) |
| Hatchling weight | 44g (range from 33.3 - 49.1g) |
| Predators of hatchlings | Pelicans, ghost crabs, crocodiles and sharks
|
View a map of Flatback Turtle Nesting Sites
Leatherback turtle
| Breeding season | December to January
|
Years between breeding
| Not measured (two to four years in other parts of the world)
|
| Nesting female length | 162.4cm (range from 150.5 - 174.5cm)
|
| Nesting female weight | Not measured (can weigh up to 960kg)
|
| Clutch size | 90 eggs
|
Hatchling emergence season
| February to March
|
Hatchling success
| Low |
| Hatchling size | 5.9cm (range from 5.14 - 6.52cm) |
| Hatchling weight | 47g (range from 38.3 - 54.2g) |
| Predators of hatchlings | Crabs and foxes
|
View a map of Leatherback Turtle Nesting Sites
