Data/hora: 09/06/2024 04:41:36

Provedor de dados: | 5
País: | France
Título: | Structure et connectivité de la mégafaune marine à l’échelle d’une région océanique. Enjeux pour la gestion durable des tortues vertes dans l’océan Indien occidental
Autores: | Bourjea, Jerome.
Data: | 2014-12
Ano: | 2014
Palavras-chave: | Tortues marines; Tortue verte; Chelonia mydas; Mégafaune; Évaluation de population; Tendance sur long terme; Structure génétique; Génétique des populations; Capture accidentelle; Biologie de la conservation; Unité de gestion; Océan Indien; Marines turtles; Green turtle; Chelonia mydas; Megafauna; Population assessment; Long term trend; Genetic structure; Population genetic; By-catch; Incidental catch; Biological conservation; Management units; Indian ocean.
Resumo: | This thesis is a comprehensive work aiming to improve scientific knowledge on the green turtle (Chelonia mydas) in order to provide key scientific evidences needed for the implementation of coherent and effective management measures to protect at the Western Indian Ocean scale this threatened species. In a first step, this work aimed to established baseline data on the abundance of green turtles nesting females and long term trends of some key nesting populations of the region by applying different modelling methods. In a second step, this work determined the regional genetic structure of this species and the relationships that exists between the different populations. Finally, the conservation of marine turtles being closely dependant to external pressures, this work tried to characterize the anthropogenic pressures they face, more specifically those related to fishing activities. All these results allowed unraveling some key gaps on the biology and ecology of the green turtle in the region and led to a global vision of the conservation status of this species in the Western Indian Ocean. The compilation of the results enabled the identification of regional priority areas for protection, but also some more specific threatened sites such as Europa. Finally, this synthesis sheds light on research priorities and scientific approaches to be promote in the future to unlock other key scientific issues and refine conservation priorities, not only of marine turtles, but also of marine megafauna as a whole.
Tipo: | Text
Idioma: | Francês

Identificador:

http://archimer.ifremer.fr/doc/00244/35505/34009.pdf

http://archimer.ifremer.fr/doc/00244/35505/

Editor: | Université de La Réunion. Ecole Doctorale des Sciences, Technologies et Santé E.D. N° 542
Formato: | application/pdf

Fonte:

2014 Université de La Réunion

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