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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. Marine ecosystem - Wikipedia

    en.wikipedia.org/wiki/Marine_ecosystem

    Marine ecosystems are the largest of Earth 's aquatic ecosystems and exist in waters that have a high salt content. These systems contrast with freshwater ecosystems, which have a lower salt content. Marine waters cover more than 70% of the surface of the Earth and account for more than 97% of Earth's water supply [1][2] and 90% of habitable ...

  4. Seabed - Wikipedia

    en.wikipedia.org/wiki/Seabed

    Marine sediment. v. t. e. The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of the ocean is very deep, where the seabed is known as the abyssal plain.

  5. 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 ...

  6. Ocean surface ecosystem - Wikipedia

    en.wikipedia.org/wiki/Ocean_surface_ecosystem

    Ocean surfaces occupy 72% of the Earth's total surface. They can be divided into surfaces of the relatively shallow and nutrient rich coastal areas above the continental shelves (light blue), and surfaces of the more expansive and relatively deeper but nutrient poor ocean that lies beyond (deep blue). External videos.

  7. Marine biology - Wikipedia

    en.wikipedia.org/wiki/Marine_biology

    Coastal habitats are found in the area that extends from the shoreline to the edge of the continental shelf. Most marine life is found in coastal habitats, even though the shelf area occupies only seven percent of the total ocean area. Open ocean habitats are found in the deep ocean beyond the edge of the continental shelf.

  8. Benthic zone - Wikipedia

    en.wikipedia.org/wiki/Benthic_zone

    The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from the Ancient Greek word βένθος (bénthos), meaning "the depths". [1] Organisms living in this zone are called benthos and include microorganisms ...

  9. 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 ...