Premier essai d'élevage de la grande alose Alosa alosa : de la larve à l'adulte
| Autor: | Morinière, P., Jatteau, Philippe, Dufour, S., Baloche, S., Gonnet, Fabienne |
|---|---|
| Přispěvatelé: | Aquarium La Rochelle, Ecosystèmes aquatiques et changements globaux (UR EABX), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Muséum national d'Histoire naturelle (MNHN) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | International Aquarium Congress International Aquarium Congress, Sep 2016, Vancouver, Canada. pp.25 |
| Popis: | International audience; The aims of this study are to continue the stocking of Allis shad, Alosa alosa, in the Rhine initiated in 2007 and to improve knowledge on the population of Gironde-Garonne-Dordogne to save and restore it. In the beginning of the 20th century, the Allis shad population of the Rhine suffered from overexploitation, pollution and habitat partitioning. However, in recent decades, the environmental situation has improved and populations have increased. In 2007, LIFE Shad project was launched to reintroduce the Allis shad on the Rhine from the population of Gironde-Garonne-Dordogne, which at the time was the largest population. Adult shads in upstream migration were caught on the Garonne and the Dordogne, and bred ex-situ. Produced larvae were released on the Rhine. In 2011, this supplemental program was continued to increase stocks as well as further studies to help manage the population. The Irstea, Aquarium, La Rochelle and Borea Team developed ex-situ rearing methods for Allis shad, and the monitoring of sexual maturation. Rearing facilities and husbandry techniques developed are presented. The results in terms of survival, growth, sexual maturation monitoring and observed pathologies are included. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|