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Last updated on April 23, 2014 at 17:36 EDT

Water Reference Libraries

Page 2 of about 80 Articles
Mediterranean feather star Antedon mediterranea
2013-05-18 06:26:42

The Mediterranean feather star is a filter feeder that obtains food by straining suspended matter and food particles from water. The star has a stalk that has up to forty tendrils, (threadlike organs) which help the star cling to hard surfaces. The “body” of the star is called a calyx and is shaped like a small cup. This calyx is surrounded by feathery pinnules bearing arms. These arms are...

Harp Seal Pagophilus groenlandicus
2013-05-01 15:08:34

The harp seal (Pagophilus groenlandicus), also known as the saddleback seal, is a true seal in the Phocidae family. It is native to northern areas of the Atlantic Ocean and to some areas of the Arctic Ocean. Its scientific name means "ice-lover from Greenland,” and it was previously classified within Phoca genus, although studies have shown that it is unique enough to be in a distinct genus....

Baikal Seal Pusa sibirica
2013-05-01 12:55:55

The Baikal seal (Pusa sibirica), also known as the nerpa or the Lake Baikal seal, is a true seal in the Phocidae family that is native to Lake Baikal located in Siberia. This species is one of three seals that reside solely in fresh water areas. It is not known exactly how these seals came to inhabit such an isolated area, but some experts assert that a sea-passage was formed that linked the...

Caspian Seal Pusa caspica
2013-04-30 14:10:47

The Caspian seal (Pusa caspica) is one of the smallest species in the true seal family that is native only to the Caspian Sea.  It can be seen on shorelines, rocky islands, and ice blocks that occur throughout the sea. In warmer months, these seals will inhabit northern areas of this range, but in colder months, they inhabit cooler waters and the mouths of the Ural and Volga rivers. It is...

Bullers Shearwater Puffinus bulleri
2013-04-21 09:09:37

The Buller’s Shearwater (puffinus bulleri) is a Pacific species of seabird in the Procellariidae family; it is also known as the Grey-backed Shearwater or New Zealand Shearwater. It is a member of the black-billed wedge-tailed Thyellodroma group, among the bigger shearwaters of the proposed genus Ardenna; it creates a superspecies with the Wedge-tailed Shearwater. The adult birds are 46 to...

Mudflats
2013-04-19 21:07:34

Mudflats, or otherwise known as tidal flats, are coastal wetlands that form when mud is left behind by tides or rivers. They’re found in sheltered regions such as bayous, lagoons, estuaries, and bays. Mudflats might be seen geologically as exposed layers of bay mud, a result from the deposition of estuarine silts, marine animal detritus, and clays. The majority of the sediment in a mudflat is...

Kelp Forest
2013-04-19 19:29:03

Kelp forests are areas that are underwater with a high density of kelp. They’re recognized as one of the most dynamic and productive ecosystems on Earth. Smaller regions of anchored kelp are known as kelp beds. Kelp forests can be found worldwide throughout polar and temperate coastal oceans. In the year 2007, kelp forests were discovered in tropical waters near Ecuador as well. While...

Endorheic Basin
2013-04-18 22:40:14

An endorheic basin, from the Ancient Greek endon, meaning “within” and rhein, meaning “to flow”, is a closed drainage basin that holds onto water and does not allow outflow to other external bodies of water, such as oceans or rivers, but joins instead into lakes or swamps, seasonal or permanent, that equilibrate via evaporation. Basins such as these might also be referred to as closed...

Black Sea
2013-04-18 19:11:10

The Black Sea is a sea located in south-eastern Europe. It’s bordered by Europe, Anatolia and the Caucasus and is eventually connected to the Atlantic Ocean by means of the Mediterranean and the Aegean Seas and a variety of straits. The Bosphorus Strait connects it to the Sea of Marmara, and the Strait of the Dardanelles connects that sea to the Aegean Sea area of the Mediterranean. These...

Water Pollution
2013-03-25 12:43:15

Water pollution is the contamination of bodies of water including rivers, oceans, lakes, aquifers and groundwater. Water pollution is when pollutants are discharged directly or indirectly into a body of water without adequate treatment to remove harmful compounds. Water pollution affects the plants and organisms that reside in these bodies of water. In almost all of the cases the effect is...