Abstract: A movement monitoring device to monitor and record movement of animals through an aquatic animal passage system, regardless of water turbidity. A housing connected to the aquatic animal passage system has an entrance to receive an animal and an exit for the animal to leave the housing. A ramp within the housing has a lower end and an upper end, and the lower end is positioned at the entrance. A platform within the housing has one end connected to the upper end of the ramp and the other end positioned at the exit. The platform is elevated so that water from the aquatic animal passage system flows underneath the platform, and the animal climbs up the ramp, out of the water, and onto the platform. A photographic system focused on the platform records an image of the animal on the platform out the water.

Abstract: A sediment measuring device has a base that is fixed into the bottom of a body of water. A removable trap, having a retaining matrix, inserts into the fixed base to capture and retain moving sediment within the trap over a given period of time. The trap is removed from the base, and may be replaced with a second trap, after which the trapped sediment is measured.