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Latest Periphyton Stories

2008-10-06 18:00:19

A U.S. study suggests the common insecticide malathion can decimate tadpole populations, killing them indirectly at doses too small to kill them directly. University of Pittsburgh researchers wanted to determine the environmental impact of the use of malathion -- the most popular insecticide in the United States. The scientists discovered gradual amounts of malathion that were too small to directly kill developing leopard frog tadpoles instead sparked a biological chain of events that...


Latest Periphyton Reference Libraries

Hypentelium nigricans
2009-01-20 20:36:05

The Northern Hogsucker (Hypentelium nigricans) is a species of freshwater fish that inhabits the rivers of the Mississippi basin. They occur from Oklahoma and Alabama northward to Minnesota. This fish is also widely distributed in western New York, including the Finger Lakes region. It occurs in tributaries of Lake Erie and Lake Ontario as well. There are no fish found north of latitude 44°. It prefers clear, fast, shallow streams, where it can forage through pebbles for bottom life,...

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Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.