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One of the most well-known surface ecoregions is the Sargasso Sea, an ecologically distinct region packed with thick, neustonic brown seaweed in the North Atlantic. Multiple ecologically and commercially important species depend on the Sargasso Sea, but neustonic life exists in every ocean basin and may serve a similar, if unrecognised, role in ...
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.
The mass of this world ocean is 1.35 × 10 18 metric tons or about 1/4400 of Earth's total mass. The world ocean covers an area of 3.618 × 10 8 km 2 with a mean depth of 3682 m, resulting in an estimated volume of 1.332 × 10 9 km 3. [17]
There are 3,000-plus types of nudibranchs in the ocean. The nudibranch is a carnivorous mollusk that can appear strikingly beautiful or drab. There are 3,000-plus types of nudibranchs in the ocean.
Marine ecosystems can be divided into many zones depending upon water depth and shoreline features. The oceanic zone is the vast open part of the ocean where animals such as whales, sharks, and tuna live. The benthic zone consists of substrates below water where many invertebrates live. The intertidal zone is
Most coral reefs exist in waters less than 50 m deep. [56] Some inhabit tropical continental shelves where cool, nutrient-rich upwelling does not occur, such as the Great Barrier Reef. Others are found in the deep ocean surrounding islands or as atolls, such as in the Maldives. The reefs surrounding islands form when islands subside into the ...
The southern fox squirrel (Sciurus niger niger) is a close relative of the gray squirrel, which is one of the most common squirrel species in the country, and is considered to be the most variably ...
Located on the northeastern coast of Queensland, the Daintree, the largest rainforest in the country/continent, is a leafy oasis where rare animals roam and plant species not found anywhere else ...