They also live near islands in the Caribbean Sea. Manatees of the Amazonian live only in South American Rivers. Manatees of the West African experience in the rivers and coastal waters of West Africa. “They are large marine mammals, with whale-like bodies that a taper to a flat, paddle- shaped tail”(“Manatee Facts” save the Manatee. Save the Manatee Club, n.d.).
The average amount of fish ingested is estimated at about 66 pounds a day for an individual dolphin about 8.2 feet and 220 pounds. The body of a dolphin is sleek, smooth and hairless, making the skin rubbery to the touch. Most species have jaws that protrude into a beak like snout. “Above the upper jaw is a large mass of fat and oil-containing tissue forming the so-called "melon" that looks much like a bulging forehead” (Internet 1). The dorsal fin on the mid-back of the dolphin contains the skeletal remnants of five digits that form the flippers.
Introduction One particularly interesting sea creature is the whale shark, formally known as Rhincondon typus it was first discovered in 1828 by Andrew Smith (Rowat 2012). This large fish is found globally in warm tropical oceans and prefers to stay within 200 meters of the ocean’s surface in waters ranging from 4.2 to 28.7 degrees Celsius (Stevens 2006). This creature can be found all across the globe in any warm tropical seas. Aggregations of whale sharks have been seen off the coast of Australia at times, although it is primarily a creature of solitude. Whale sharks are filter feeders that consume plankton as well as small fish and are harmless to humans.
Since they are cold-blooded reptiles, a leatherback turtle’s internal temperature should be the same as the temperature of the water they are in, but these turtles... ... middle of paper ... ...A). Since then, leatherback population is still decreasing, and their population is in a very critical states. The Convention on International Trade of Endangered Species (CITES) also prohibits selling or trading any product of the turtle on the international market. Also, in certain place trawlers (fishing or shrimp boats) are now required by law to have larger Turtle Excluder Devices (TED’s) that lets larger turtles like leatherbacks to get away from the nets when they are caught. To better comprehend how we can conserve these magnificent leatherback turtles, researchers are using tags triggered by satellites to track turtles.
The blue whale has a tiny, stubby dorsal fin set far back on its body. It has a 20 foot wide, slightly notched, triangular flukes, which is propelled by an extremely thick tail stock. The flippers on this creature are long and slender, and are about one-seventh of the whale's body length. The blue whale's most prominent feature is its exceptionally fleshy splashgaurd, which surrounds the blowholes at the front and sides. This whale spouts a single slender jet that soars forty to fifty feet high.
Dolphins were once hunted by commercial boats for the small amount of oil that can be extracted from their body. This oil is used to lubricate small parts in watches. Cheaper oils have been found, so dolphins are not hunted for this reason anymore. Dolphins can be caught in tuna nets by accident. Since dolphins have to breath at the surface they drown in tuna nets.
In shallower waters, there is much life. Photosynthetic organisms are the basis of all life in the sea. Also, some animals such as the sea anemones and the sea cucumbers allow currents to carry particles to them, and some creature pulse to deliver oxygen to their bodies, an example could be the coral polyps. As the movie shows, the ocean has acquired a population of immense diversity. The biggest of all fish is the whale shark (50 feet long).Sharks evolved 400 million years ago.
During an experiment a trained beluga whale dove to 1,312 ft.easily, and one even dove to a depth of 2,123 ft. A dive usually lasts less than ten minutes, but belugas can stay underwater for more... ... middle of paper ... ... and sometimes travel in packs. Their skin color is also an important whey they protect themselves because they blend in with the snow and icebergs around their habitat (NOAA). The belugas enemies are killer whales, polar bears and humans. Beluga whales have been hunted for centuries for food by the natives that live near the arctic, and for their blubber and skin. The beluga is protected under the Marine Mammal Protection Act (NOAA).
If you see one there, something is very wrong if you are in North America. South America might be fine, but usually dolphins live in the ocean. Forty types of dolphins live in the ocean while at least four different types live in freshwater habitats. The Bottlenose Dolphin, the Spinner Dolphin, and the Orca are all dolphins who live in saltwater habitats. Usually dolphins live in shallow water where you can see the bottom.
Modern day dolphins live in rivers and oceans throughout the world. There are 33 known species of ocean dolphins and five river dolphins. The bottle-nosed dolphin inhibits mainly temperate and tropical waters, in the Pacific, Atlantic, Indian ocean and Mediterranean Sea. They normally stay close to shore in warmer water, but some stay offshore in the cooler waters. Dolphins migrate due to the movement of food supply and the change in water temperature.