Date:11/30/2007

n of renewable energy sources aims to increase use of water power by 10 to 20 per cent. Studies from Scandinavia, where people have been generating electricity from water power for a hundred years, have shown that this type of power generation has major consequences for the ecological status of rivers. Shallow areas are particularly affected because the water level fluctuates considerably over the course of the year. Among other things, this severely restricts the growth of aquatic plants in these areas, which are then not available for fish for spawning or for foraging. In many cases then, the issue of a rivers ecological status is interesting not only from the point of view of environmental protection the many and varied goods and services that healthy ecosystems supply to humans, such as the provision of food and drinking water and maintaining nutrient cycles, are also of major economic importance.

'/>"/>

Contact: Dr. Werner Brack 49-341-235-1531 Helmholtz Association of German Research Centres   Source:Eurekalert

0 GOOD

Page: 1 2 3
Related biology news :

1. Gender, coupled with diabetes, affects vascular disease development
2. New target for anti-flu drug development
3. Selexis Announces Advanced Approach to Maximize Power of Genetic Elements for Rapid Development of High Performance Cell Lines
4. KAUST and American University in Cairo to collaborate on research and academic development
5. Old developmental pathways spawn revolutionary evolutionary changes
6. NIST announces 56 new awards for innovative technology research and development
7. Progress Against Malaria: Developments on the Horizon
8. Flu vaccine in painless skin patches under development at Emory, Georgia Tech with NIH grants
9. Biopharmaceutical infrastructure key to lower drug development costs
10. Study identifies pathway required for normal reproductive development
11. 200 journals join in theme issues on poverty and human development