Other examples include (a) the Environmental Sample Processor, developed at the Monterey Bay Aquarium Research Institute, which extracts nucleic acids from protists in the water and detects specific organisms by their DNA; (b) the Submersible Incubation Device of the Woods Hole Oceanographic Institution, which determines levels of photosynthesis in the water around it; and (c) the submersible flow cytometer, which analyses microbial cells in the water continuously for up to two months.