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The limnetic zone is the open and well-lit area of a freestanding body of fresh water, such as a lake or pond. Not included in this area is the littoral zone, which is the shallow, near-shore area of the water body. The key difference between the littoral zone and the limnetic zone is the presence of rooted plant growth. [1]
Bengal tiger (national animal) Panthera tigris tigris [31] Indian peafowl (national bird) Pavo cristatus [32] Ganges river dolphin (national aquatic animal) Platanista gangetica [33] Indian elephant (national heritage animal) Elephas maximus indicus [34] Indonesia: Komodo dragon (national animal) Varanus komodoensis [35] Javan hawk-eagle ...
The term limnology was coined by François-Alphonse Forel (1841–1912) who established the field with his studies of Lake Geneva.Interest in the discipline rapidly expanded, and in 1922 August Thienemann (a German zoologist) and Einar Naumann (a Swedish botanist) co-founded the International Society of Limnology (SIL, from Societas Internationalis Limnologiae).
Much of the ocean around the mainland is covered by sea ice. The oceans themselves are a more stable environment for life, both in the water column and on the seabed. There is relatively little diversity in Antarctica compared to much of the rest of the world. Terrestrial life is concentrated in areas near the coast.
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
This new definition has not yet been ratified (and, in addition, a reservation was lodged in 2003 by Australia.) [11] While the name "Southern Ocean" is frequently used, some geographic authorities such as the 10th edition of the World Atlas from the U.S. National Geographic Society generally show the Atlantic, Indian, and Pacific Oceans ...
From shallow waters to the deep sea, the open ocean to rivers and lakes, numerous terrestrial and marine species depend on the surface ecosystem and the organisms found there. [1] The ocean's surface acts like a skin between the atmosphere above and the water below, and hosts an ecosystem unique to this environment.
National Geographic Kids (often nicknamed to Nat Geo Kids) is a children's magazine published by National Geographic Partners. [1] In a broad sense, the publication is a version of National Geographic , the publisher's flagship magazine, that is intended for children.