| Registro completo |
| Provedor de dados: |
ArchiMer
|
| País: |
France
|
| Título: |
Influence de la temperature sur la differentiation sexuelle des gonades chez la tortue luth (Dermochelys coriacea ); etude en incubation artificielle et naturelle
|
| Autores: |
Rimblot, F
Fretey, J
Lescure, J
Pieau, C
|
| Data: |
1983-12
|
| Ano: |
1983
|
| Palavras-chave: |
Dermochelys coriacea
Chelonia mydas
Reptilia
Hatcheries
Natural populations
Incubation
Turtle culture
Eggs
Temperature effects
Sexual dimorphism
|
| Resumo: |
Sexual differentiation of the marine leatherback turtle is sensitive to temperature. Incubation of eggs below 29 degree C results in 100% males, whereas incubationa bove 30 degree C results in 100% potential females at hatching. Therefore, the threshold temperature lies between 29 and 30 degree C as has been found for other marine turtles (Caretta caretta, Chelonia mydas ). Among hatchlings from natural nests in French Guiana, 10% were males, 20% were potential females and 70% had an intermediate phenotype. The sand temperature at 60 cm of depth, near one nest, was recorded and was found to vary between 29 and 30 degree C during the presumed thermosensitive period. These results will be useful to marine turtle hatcheries which seek to manipulate sex ratios among their neonates.
|
| Tipo: |
Text
|
| Idioma: |
Francês
|
| Identificador: |
http://archimer.ifremer.fr/doc/1983/acte-1241.pdf
|
| Editor: |
Actes de colloques. Ifremer. Brest [ACTES COLLOQ. IFREMER.]. 1985
|
| Relação: |
http://archimer.ifremer.fr/doc/00000/1241/
|
| Formato: |
application/pdf
|
