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2. Marine habitat - Wikipedia

   en.wikipedia.org/wiki/Marine_habitat

   A marine habitat is a habitat that supports marine life. Marine life depends in some way on the saltwater that is in the sea (the term marine comes from the Latin mare, meaning sea or ocean). A habitat is an ecological or environmental area inhabited by one or more living species. [1] The marine environment supports many kinds of these habitats.

3. Essential fish habitat - Wikipedia

   en.wikipedia.org/wiki/Essential_Fish_Habitat

   Essential Fish Habitat (EFH) was defined by the U.S. Congress in the 1996 amendments to the Magnuson-Stevens Fishery Conservation and Management Act, or Magnuson-Stevens Act, as "those waters and substrate necessary to fish for spawning, breeding, feeding or growth to maturity." [1] Implementing regulations clarified that waters include all ...

4. Underwater habitat - Wikipedia

   en.wikipedia.org/wiki/Underwater_habitat

   German underwater laboratory, "Helgoland", 2010. Underwater habitats are underwater structures in which people can live for extended periods and carry out most of the basic human functions of a 24-hour day, such as working, resting, eating, attending to personal hygiene, and sleeping. In this context, ' habitat ' is generally used in a narrow ...

5. Freshwater fish - Wikipedia

   en.wikipedia.org/wiki/Freshwater_fish

   Freshwater fish are fish species that spend some or all of their lives in bodies of fresh water such as rivers, lakes and inland wetlands, where the salinity is less than 1.05%. These environments differ from marine habitats in many ways, especially the difference in levels of osmolarity. To survive in fresh water, fish need a range of ...

6. Aquatic ecosystem - Wikipedia

   en.wikipedia.org/wiki/Aquatic_ecosystem

   An aquatic ecosystem is an ecosystem found in and around a body of water, in contrast to land-based terrestrial ecosystems. Aquatic ecosystems contain communities of organisms — aquatic life —that are dependent on each other and on their environment. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems. [1]

7. Seashore wildlife - Wikipedia

   en.wikipedia.org/wiki/Seashore_wildlife

   Seashore wildlife habitats exist from the Tropics to the Arctic and Antarctic. Seashores and beaches provide varied habitats in different parts of the world, and even within the same beach. Phytoplankton is at the bottom of some food chains, while zooplankton and other organisms eat phytoplankton. Kelp is also autotrophic and at the bottom of ...

8. Diversity of fish - Wikipedia

   en.wikipedia.org/wiki/Diversity_of_fish

   According to FishBase about 34,800 species of fish had been described as of February 2022, [5] which is more than the combined total of all other vertebrate species: mammals, amphibians, reptiles and birds. Fish species diversity is roughly divided equally between marine (oceanic) and freshwater ecosystems.

9. Marine coastal ecosystem - Wikipedia

   en.wikipedia.org/wiki/Marine_coastal_ecosystem

   A marine coastal ecosystem is a marine ecosystem which occurs where the land meets the ocean. Worldwide there is about 620,000 kilometres (390,000 mi) of coastline. Coastal habitats extend to the margins of the continental shelves, occupying about 7 percent of the ocean surface area. Marine coastal ecosystems include many very different types ...