Search results
Results from the WOW.Com Content Network
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).
National Geographic Video is an educational video series founded by the ... Educational Video Presentations 51515 Ocean Animals ... Love Those Trains 1984 ...
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]
Great Migrations is a seven-episode nature documentary television miniseries that airs on the National Geographic Channel, featuring the great migrations of animals around the globe. The seven-part show is the largest programming event in the ten-year history of the channel and is part of the largest cross-platform initiative since the founding ...
As the summer begins, two distinct layers become established, with such a large temperature difference between them that they remain stratified. The lowest zone in the lake is the coldest and is called the hypolimnion. The upper warm zone is called the epilimnion. Between these zones is a band of rapid temperature change called the thermocline ...
National Geographic Channel Expedition Mars: Spirit and Opportunity 16 November 2016 Before the Flood: 21 October 2016 Drain the Ocean: WWII 19 September 2016 9/11: The Plane That Hit the Pentagon 10 September 2016 Mega Hammerhead 26 June 2016 Nat Geo Wild Sharkatratz 26 June 2016 Drain the Titanic 5 May 2016 National Geographic Channel
Built for the Kill ' s classic opening was a montage of creatures featured in the first 7 episodes (Desert, Coral Reef, Rainforest, Grassland, Miniature, Swamp and Ocean) with a catchy theme song. This opening was changed further into the series to one that shows the National Geographic logo in various parts. The theme song stayed the same however.
The abyssal zone or abyssopelagic zone is a layer of the pelagic zone of the ocean. The word abyss comes from the Greek word ἄβυσσος ( ábussos ), meaning "bottomless". [ 1 ] At depths of 4,000–6,000 m (13,000–20,000 ft), [ 2 ] this zone remains in perpetual darkness.