. Earth Science News .
China Dam Blamed For Surge In Jellyfish

Three Gorges Dam in China.
by Staff Writers
Mainichi, China (UPI) Jun 12, 2006
Researchers in Japan have concluded that a surge in the number of giant jellyfish off the Japanese coast is a result of a hydropower dam in China. The jellyfish have a negative effect on the Japanese fishing industry.

The Mainichi Daily News reported that researchers from Japan's National Institute for Environmental Studies have suggested that construction of the Three Gorges Dam in China, the world's largest hydropower dam, is responsible for the explosion of the jellyfish population.

Nomura jellyfish, typically found in Japan, measure up to one meter in diameter and can weigh as much as 200 kilograms.

One of the breeding areas for the jellyfish is near the mouth of the Yangtze River, near Shanghai. Construction of the dam is thought to have reduced the production of silicon, which is necessary for the breeding of phytoplankton, the newspaper said.

Researchers plan to examine the relationship between the dam construction and the jellyfish over the next three years.

Source: United Press International

Related Links
Daily science news about life on Earth

Early Life Was Abundant
Canberra, Australia (SPX) Jun 12, 2006
Life on Earth may well have flourished on Earth 3.43 billion years ago in an environment not too different to the warm little pond that Darwin imagined: a quiet shallow marine environment sandwiched in time between two active volcanic periods.







  • Emergency Communications Service For 2006 Hurricane Season
  • Sinking Levees
  • Future Hurricane Disasters May Become More Costly
  • Indonesia to make community grants for quake reconstruction

  • Annan Warns Of Poverty And Conflict As Deserts Expand
  • Researcher Offers Insights On Development Of Arid Semiarid Landscapes
  • Global Greenhouse Cooked Up A Hot Stew Of Life
  • Climate change could fuel fiercer hurricane cycles: researchers

  • EarthData Wins 16 Million Contract To Map Papua New Guinea
  • Global Ecology Inks Partnership With Japanese Satellite Firm
  • First CloudSat Images Wowing Scientists
  • UAE To Monitor Construction Sites Via Satellite

  • Japan To Give Asia Coal Liquefaction Technology
  • Policy Makers Draw Up List Of 'Top 100' Ecological Questions
  • Producing Bio-Ethanol From Agricultural Waste A Step Closer
  • Environment Agency Rejects Gorgon Natural Gas Project

  • US Approves Wild Bird Avian Flu Surveillance Network
  • Large-Scale Genomics Project Will Hunt Genes Behind Common Childhood Diseases
  • H5N1 Signature May Help Detection
  • Plant Diseases Threaten Chocolate Production Worldwide

  • Climate Change Driving Evolution Of Animal Species
  • China Dam Blamed For Surge In Jellyfish
  • Surviving Snowball Earth
  • Early Life Was Abundant

  • Sandia Tool Speeds Up Environmental Cleanup, Reopening Of Contaminated Facilities
  • India Court Allows Toxic Ship Into Territorial Waters
  • Decades Of Acid Rain Is Causing Loss Of Valuable Northeast Sugar Maples
  • Air pollution rife in India's villages: report

  • Evidence Human Activities Have Shaped Large-Scale Ecological Patterns
  • Ancient Human Fossils Find Modern Virtual Home
  • Ancient DNA Sequence Allows New Look At Neandertals Diversity
  • Chaco Canyon: A Place Of Kings And Palaces

  • The content herein, unless otherwise known to be public domain, are Copyright 1995-2006 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA PortalReports are copyright European Space Agency. All NASA sourced material is public domain. Additionalcopyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement