The main living environment for killer whales is open oceans but they can also be found in coastal waters as well. Migration. Killer whales are very important in the oceans because they cause much of the migration of many fish and other prey. The movements of the killer whale to and from certain areas cause the other prey to move as well. Population.
Dolphins are aquatic mammals that are closely related to whales and porpoises. Dolphins evolved about ten million years ago. .. Dolphins belong to the family Delphinidae. It is the largest and most diverse family of aquatic mammals and includes 26 living species dolphins vary in size from 2m -3 metres and 150- 300 kilograms. Most species of dolphins are larger than porpoises, with the males usually being larger than the females.. Several species of dolphins are found in most oceans and some rivers .
Also, reefs have a salt water concentration of about 35-38 parts per thousand and a relatively high oxygen concentration. Coral reefs house about 25% of ocean life. Many marine life use it as a resting area. The most common animals are the corals. Other animals include sponges, worms, sharks, snails, octopus, and more.
A variety of fishes, invertebrate animals, and plants can be found on these underwater wonderlands. Throughout the world, there are many coral reefs that are home to many species. Coral reefs are thought of by many as the rainforest of the sea. Coral reefs are produced from corals when they secrete calcium carbonate. These reefs play a very significant role in the overall health and nutrition of their marine environment as wells as, the entire planet.
Life in the Great Barrier Reef Some of the most unique and beautiful creatures in the world can be found in the Great Barrier Reef. Around thirty species of whales, dolphins and porpoises have been recorded in the Great Barrier Reef, including the Indo-Pacific humpback dolphin, and the humpback whale. Over 1,500 fish species live on the reef, including the clownfish, red bass, red-throat emperor, and several species of snapper and coral trout. Six species of sea turtles including the green sea turtle, leatherback sea turtle, hawksbill turtle, loggerhead sea turtle, flat back
Gulper (Eurypharynx pelecanoides): Also known as the "umbrellamouth gulper" or "the pelican eel," this fish can greatly expand its hinged jaws to engulf fishes and deposit them in its pouch-like lower jaw. These fish grow up to 2 feet long, including their whip-like tail , and live in depths greater than 6,500 feet. Anglerfish (Melanocetus johnsoni): This fish is very round shaped with a large mouth. Nicknamed the "black whale" or "common black devil," its ferocious appearance is deceiving, since it can only reach a maximum length of 5 inches. Viperfish (Chauliodus sloani): Its lower fangs are so long that they don’t even fit in its mouth!!
Benefits derived from coral reefs include marine fishery, research, recreational and tourism benefits, and natural protection for the shoreline (UNEP 2004). In the Philippines, nearly 70 percent of the protein food intake is from fish and reef fisheries in the country has been estimated to directly contribute to around 15-30 percent of the total national municipal fisheries (Murdy and Ferraris 1980). But despite their importance and endurance over geological time, in reality, coral reefs are one of the most fragile among the planet’s environments which are being continually destroyed at an alarming rate. Just like their terrestrial counterparts, the rainforests, the coral reefs are also being incessantly subjected to a diverse range of anthropogenic threats including eutrophication, sedimentation, overfishing, mining and physical destruction by reef users (Sebens 1994), all of which could cause extinction of marine populations (Dulvy et al. 2003), changes in reef fish assemblages (McClanahan and Arthur 2001) and species loss (Lavides et al.
And many sea cucumbers provide a habitat for parasites such as crabs, worms, and snails. In some countries, echinoderms are considered delicacies. Around 50,000 tons of sea urchins are captured each year for food. They are consumed mostly in Japan, Peru, and France. Sea cucumbers are considered a delicacy in some South Eastern Asian countries.
Snappers are important food and game fishes, and several species have been introduced into non-native waters. For this experiment, we had examined the Big-blue eye snapper. The colour of entire body was reddish, with a series of short, irregular lines on its sides, diagonal blue lines formed by spots on the scales above the lateral line, sometimes with yellow streaks below the lateral line, large canine teeth absent, orientation of mouth and eye give it the appearance of looking upward, and no dark lateral spot. This fish has the forked caudal fin. The caudal fin is the tail fin, located at the end of the
Latest technological advances have increased the threat to the marine animal, especially for turtles. It's believed that many species of turtle already got extinct and seven species of turtle are in the verge of extinction. Olive Ridley is one among the seven breeds that are in the verge of extinction. Features of Olive Ridley Olive Ridley turtles have been around a very long time, more than 100,000,000 years. Olive Ridley sea turtles, Lepidochelys olivacea are small, hard-shelled marine turtles, one of the two species of the genus Lepidochelys, and a member of the Family Cheloniidae.