Data/hora: 11/06/2024 07:06:32

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Estimation du nombre de tortues vertes femelles adultes Chelonia mydas par saison de ponte à Tromelin et Europa (Océan Indien) (1973-1985)
Autores: | Le Gall, Jean-yves; Bosc, Pierre; Taquet, Marc.
Data: | 1986
Ano: | 1986
Palavras-chave: | Tortue verte; Chelonia mydas; Reproduckion; Ponte; Population; Femelles; Marquage; Recapture; Océan Indien.; Marine green turtle; Chelonia mydas; Capture; Recapture; Indian Ocean; Nesting; Populations; Tagging; Reproduction.
Resumo: | A research programm on the marine green turtle Chelonia mydas nesting on the two major reproduction sites for the species in the Indian Ocean, conducled over last 15 years, included intensive tagging programm. Processing of these lagging data provides estimations of adult female populations {or each site and season from two independent methods. First classical method is the ratio of total number of nests produced over a define time on the mean individual number of nests by female during the same time (November, December, January). The computed mean individual number ranges from 3 to 3.5 obtained over 2 to 3 months. The second method is the multiple capture-recapture method (JOLLY, 1965; SEBER, 1965; MANLY, 1984). Il is an original tentative of applying this method for the daily estimation of females number on a nesting site. The results obtained suggest this method to be applied for the species on other sites and to other marine turtle species. Population estimates obtained by these two independent methods are coherent Roughly, the two populations through seasonal nesting activity appear in wealthy state with a mean estimation number of 850 to 1100 females for Tromelin and more variable eslimations ranging from 2000 lo 11 000 females by season for Europa, considering lhe three major nesting months: November to January
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/00113/22406/20103.pdf
Editor: | Editions de l'ORSTOM
Relação: | http://archimer.ifremer.fr/doc/00113/22406/
Formato: | application/pdf
Fonte: | Océanographie tropicale (0245-9418) (Editions de l'ORSTOM), 1986 , Vol. 21 , N. 1 , P. 3-22
Fonte: | ORSTOM