PRX - Pieces for Tone: Engaging
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Fish farming - also known as aquaculture - helps to keep fish stocks up and prevent over-fishing. But fish farms are usually located in shallow wat...
Bought by KMXT
- Added: Dec 17, 2006
- Length: 01:30
- Purchases: 1
Many of the world's fisheries and marine ecosystems are in trouble from overfishing and high "bycatch" - the accidental killing of millions of mari...
Bought by KMXT
- Added: Dec 17, 2006
- Length: 01:30
- Purchases: 1
Open-field coffee cultivation emerged some 30 years ago. While the method may be productive in the short run, it often degrades the environment, an...
- Added: Dec 01, 2006
- Length: 01:30
- Purchases: 3
Aquaculture is becoming big business in a hungry world. The challenge is to develop methods and technologies that produce sustainable yields while ...
- Added: Dec 01, 2006
- Length: 01:30
- Purchases: 3
