Ocean cold as water at greater depths. Below the thermocline, water is very cold, ranging from −1 °C to 3 °C. Because this deep and cold layer contains the bulk of ocean water, the average temperature of the world ocean is 3.9 °C. If a zone undergoes dramatic changes in salinity with depth, it contains a halocline. If a zone undergoes a strong, vertical chemistry gradient with depth, it contains a chemocline. The halocline often coincides with the thermocline, and the combination produces a pronounced pycnocline. The deepest point in the ocean is the Mariana Trench, located in the Pacific Ocean
Sea Life Bangkok Ocean World Excluding sharks, penguins and starfishes various breeds of seahorses, frogs and jellyfishes can also be seen over there. The Oceanis Group was established 1993. Oceanis Australia Pty Ltd was the World’s largest aquarium owner and operator (by numbers of customers and volume of displays). The Group owned aquariums in Melbourne, Mooloolaba, Busan (South Korea) and manages the Ocean World Aquarium in Shanghai. Oceanis group was acquired in 2011 by Merlin Entertainments, the worlds second largest attraction operator including Legoland and Madame Tussauds. Sea Life Bangkok Ocean World Sea Life Bangkok Ocean World (formerly, Siam Ocean World) is an aquarium in