Research expeditions at Oceana are composed of several elements that help collect, identify and document marine communities living on the ocean floor. One method that covers all of these elements is grab sampling which is typically used during Oceana’s expeditions. Although for a non-scientist, grab sampling can give an impression of “playing with the mud,” it is in fact another way of how we study the sea floor. You would be surprised how rich marine life is here; you could find: shells, worms, sponges, brittle stars, sea urchins and many more.