(Clockwise from upper left) An image of the seafloor habitat taken from an autonomous underwater vehicle, a Saildrone underway, a Slocum glider in a test pool, the SIERRA-B uncrewed aircraft in flight, an aerial shot of salmon river habitat taken from an uncrewed aircraft, the Hydrus autonomous underwater vehicle surveying habitat.

Credit: All photo credit to NOAA except the bottom right which goes to Advanced Navigation