Mission Floating camera trap system

The scientific study of rare and elusive animal species represents a considerable challenge, requiring the use of complementary methods such as camera traps. While these devices have proven particularly effective for monitoring numerous terrestrial species, their application to aquatic and semi-aquatic species remains limited due to the logistical constraints inherent to freshwater environments.

To address this issue and enable the detection of elusive species such as Rafetus swinhoei, we have developed an innovative floating camera trap system that is easily replicable and transferable to the study of other difficult-to-observe aquatic animals.

The device consists of an aluminum structure with a round composite plate, assembled with stainless steel screws and nuts, and kept afloat by three empty 1.5-liter plastic bottles. The photographic equipment includes a camera trap positioned approximately 25 cm above the water with a 25° angle to optimize the view of the bait and its surroundings. Different types of scented baits are placed in nylon mesh bags to disperse the odor while preventing consumption, and are regularly renewed.

This detection system represents a robust and easily deployable tool for long-term monitoring of aquatic environments. Its low cost, light weight, and ease of construction make it an effective and adaptable solution for various ecological applications, with possibilities for future improvements to enhance detection sensitivity for aquatic species.