News tagged with food chains

A Zen discovery: Unrusted iron in ocean

Iron dust, the gold of the oceans and rarest nutrient for most marine life, can be washed down by rivers or blown out to sea or - a surprising new study finds - float up from the sea floor. The discovery, ...

Feb 08, 2009
4.3 / 5 (17) 16

Algae-Based Biofuel From Fish

Right now, when biofuel is produced using algae, cultures are grown and then processed into fuel. But the process is expensive and difficult. Now a company in Texas, LiveFuels, Inc., hopes that it will be ...

Sep 01, 2009 weblog
3.9 / 5 (12) 14

Harvesting of small fish species should be cut: study

(PhysOrg.com) -- New research on the fishing of small fish species near the bottom of their food chains suggests harvesting at levels previously thought to be sustainable could have devastating effects on ...

Jul 22, 2011 report
4.8 / 5 (8) 5 | with audio podcast