The 'pelagic zone' refers to the open ocean, away from the shore and the sea floor. It encompasses the 'water column', which is all of the water from the ocean's surface to the ocean bottom. This zone is home to a wide range of creatures, from tiny phytoplankton, to the small fish that feed on them. History: The pelagic zone is further divided into 5 different areas based on depth: the Epipelagic near the surface which receives full sunlight, the Mesopelagic from 660 feet to 3,300 feet which receives some sunlight. Characteristics: These pelagic fish figures are professionally hand-painted and full of scientifically accurate detail! This set includes a wide range of pelagic fish, including a Sailfish, a Swordfish, a Yellowfin Tuna, etc. Size: 1½" long, 1½" wide, and 13" tall, this TOOB is a little larger than the size of a standard American ruler. It features 10 figures of fish from the pelagic region that range from 2½" to 3½" long. All of our products are Non-toxic and BPA free.