Chile's New Cash Crop -- Salmon

Salmon

Puerto Montt
Salmon
Salmon
Salmon
Salmon
Salmon
Salmon
Salmon
Salmon
Salmon
Salmon
Salmon
Salmon
Salmon
Salmon
Salmon
Using computers and underwater cameras, the operator can monitor the amount of fish feed. Environmentalists are very concerned about the accumulation of excess feed and fish feces on the ocean floor under the salmon farms. Because the farms are situated in calm waters there is very little circulation, creating a "cage shadow" of accumulated feed and feces that kills all life on the ocean floor below. The undersea cameras allow the operator to stop sending feed as soon as the salmon stop eating. (Jeffrey Kofman/ABC News)
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