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Marine biology is the scientific study of the biology of marine life, organisms that inhabit the sea.Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy.
General characteristics of a large marine ecosystem (Gulf of Alaska) Killer whales (orcas) are highly visible marine apex predators that hunt many large species. But most biological activity in the ocean takes place with microscopic marine organisms that cannot be seen individually with the naked eye, such as marine bacteria and phytoplankton.
A school of large pelagic predator fish (bluefin trevally) sizing up a school of small pelagic prey fish (). Pelagic fish live in the pelagic zone of ocean or lake waters—being neither close to the bottom nor near the shore—in contrast with demersal fish that live on or near the bottom, and reef fish that are associated with coral reefs.
Saltwater fish, also called marine fish or sea fish, are fish that live in seawater.Saltwater fish can swim and live alone or in a large group called a school. [1]Saltwater fish are very commonly kept in aquariums for entertainment.
The lobates have a pair of lobes, which are muscular, cuplike extensions of the body that project beyond the mouth. Their inconspicuous tentacles originate from the corners of the mouth, running in convoluted grooves and spreading out over the inner surface of the lobes (rather than trailing far behind, as in the Cydippida).
The ocean is the body of salt water that covers approximately 70.8% of Earth. [8] In English, the term ocean also refers to any of the large bodies of water into which the world ocean is conventionally divided. [9]
Bunaken National Park is a marine park in the north of Sulawesi Island, Indonesia.The park is located near the centre of the Coral Triangle, providing habitat to 390 species of coral [2] as well as many fish, mollusks, reptiles and marine mammal species.
The Orang Laut are several seafaring ethnic groups and tribes living around Singapore, Peninsular Malaysia and the Indonesian Riau Islands. The Orang Laut are commonly identified as the Orang Seletar from the Straits of Johor , but the term may also refer to any Malayic -speaking people living on coastal islands, including those of the Mergui ...