Data/hora: 01/06/2024 06:08:31

Provedor de dados: 	5	
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