The Largest Hydroelectric Reservoir in France (Petit-Saut, French Guiana) and the Giant Otter: Current state and future prospects
References
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Abstract
A research program initiated in 2021 on Lake Petit-Saut aims to improve knowledge of the status of Giant Otter populations, a species classified endangered at the international level. Monitoring indicates that, despite its artificial origin, the lake provides suitable habitat for the species. The site’s attractiveness is largely due to the non-interventionist management of the reservoir since its creation, the regulation of fishing activities, and the restriction of human presence. The project also highlights the risks associated with ongoing industrial activities targeting the removal of dead trees from the reservoir, which simplify aquatic habitats and threaten fish biodiversity. These findings provide a scientific basis to guide the management and conservation of Giant Otter populations and associated aquatic ecosystems. This constitutes the first population density estimate for the species in French Guiana.