Forage fish like these at a Chilean processing plant are often used for fish meal used in aquaculture. But critics consider this inefficient and wasteful and worry it could deplete fish populations. Now several companies are developing protein substitutes to replace fish meal.
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Washington has eight Atlantic salmon net pens. There are two types: commercial net pens for raising Atlantic salmon and enhancement net pens for wild salmon that will eventually be released.
Robert F. Bukaty/AP
Sturgeon fisherman Bill Ford has filled Ceapa's boat, "Sturgeon Queen," with his morning's catch: a few gillnets full of wild, six- to eight-foot long Atlantic sturgeon from the St. John River.
Courtesy of Cornel Ceapa