EricPonds

=Ponds and Lakes= By Eric Moskal

LAKE

__ Organisms __
 * Algae-** There are two main types of algae that grown in ponds, Green Water Algae (also known as “Pea Soup Algae”) or String Algae (also known as “Blanket Weed”) These two types are very common in household environments as well as small ponds and lakes. Green Water Algae typically grows in pet fish aquariums and is seen as a nuisance by those that it affects. The scientific name for the algae found is zooplankton.

String Algae

Green Water Algae


 * Benthic Organisms-** Clams, or river clams, can typically be found in ponds and shallow rivers dug into the deep sediments and sand on the banks.

River Clams


 * Protists:** Phylum Ciliophora are little guys that use their cilia to propel itself through water. Phylum Sarcodina are single celled organisms that are basically a “blob of protoplasm”.



Phylum Sarcodina Phulum Ciliophora

Map:

__ Food Web __ : - Humans (Omnivores, Consumers)

- Ducks (Omnivores) - Frogs (Carnivores) - Water Spiders (Carnivores) - Tadpoles (Decomposers) - Mussels (“Filter Feeders” or Detritovores) - Clams (“Filter Feeders or Detritovores) - Zooplankton (Producer) - Phytoplankton (Producer) - Bass (Omnivores) - Bitterling (Omnivores) - Platypus (Carnivores) - Catfish (Detritovores) - River Minnows - Algae (Autotroph) - White Tail Deer (Herbivore)



__ Non-Living Factors __ - Lakes can range in size from small to large. They can be very deep or shallow. They range in depths of less than six or seven feet and plant life on the bottom are often called ponds. - There are no rooted plants at the bottom of lakes, because the water is too deep for sunlight to reach. Lakes get their water from precipitation, from rivers and streams and from underground water. - During the fall there is less sunlight to heat lake water during the day. They can lose more heat at night and wind can mix up the water layers. When all of this happens, the water in lakes can become close to the same temperature at all levels, which is known as “fall overturn”

__ Fun Facts __ - There are about 30,000 cubic miles (48,270 cubic kilometers) of lake water in the world

- Lake water makes up about 0.4 percent of all the world's fresh water - The deepest freshwater lake in the world is Lake Baikal in Siberia. It is 5371 feet (1637 meters) deep - Almost half of the world's lakes are in Canada

Works Cited

Egmond, Wim Van. "Green Algae." //http://www.microscopy-uk.org.uk/mag/// //indexmag.html?http://www.microscopy-uk.org.uk/mag/wimsmall/green.html//. Microscopy UK, Summer 2009. Web. 9 Sept. 2010.

Environmental Involvement. "Pond Factsheet." //http://www.ypte.org.uk/// //about-us.php//. Evironmental Involvement for Young People, Fall 2010. Web. 9 Sept. 2010.

Esch, Mary. //http://www.kansascity.com/2010/09/03/2197235/// //clams-befouling-tahoe-invade-adirondack.html//. Kansas City Newspaper, 3 Sept. 2010. Web. 9 Sept. 2010

Microbus. "Pond Critters." //http://www.microscope-microscope.org/applications/// //pond-critters/pond-critters.htm//. Microbus, 2007. Web. 9 Sept. 2010.

New Hampshire Public Television. "Lakes." //http://www.nhptv.org/natureworks/// //nwep7c.htm//. New Hampshire Public Television, Jan. 2010. Web. 9 Sept. 2010. "Tennessee Lakes." //http://www.tennesseelakeinfo.com///. Tennessee Lakes, 2001. Web. 9 Sept. 2010.