It’s still unclear if U.S. standards can be successful. Many in the farmed fish industry say they expect that the requirements for fish feed may be so strict as to be financially prohibitive.

“The challenge is, will consumers will be willing to pay for it?” says Sebastian Belle, head of the Maine Aquaculture Association, who has advised the USDA on the organic rules. “The markets will decide that.”

In turn, some consumer and environmental groups have said they are concerned the standards won’t be strict enough.

The discussions have been marked by tensions over what organic fish should eat and whether some of them can be raised in ocean cages called net pens. USDA’s McEvoy says the new rules will be based on a series of recommendations from the government’s National Organic Standards Board over the last decade.

Some environmental groups criticize the recommendations for suggesting that at first a quarter of the fish feed could be from sustainably wild-caught — but not organic — fish. A fish can’t be organic, they argue, if it doesn’t eat 100 percent organic feed.

Wild fish would not be eligible for the organic label — that would be too difficult to monitor.

The environmental groups also are concerned that fish in ocean pens would be able to escape and contaminate their surroundings. They also worry about ocean contaminants.

“What we’re saying is this isn’t organic,” says Lisa Bunin of the Center for Food Safety.

The recommendations suggest several safeguards: Ocean-farmed fish should be strains of local species, and no net pens could be placed on migratory routes. Producers would have to closely monitor water quality and the impact on the area ecosystem.

For producers, a main concern would be the availability of organic feed.

Breeding organic fish to feed the organic fish could be prohibitively expensive, and organic grains such as soybeans and canola that can make up fish feed also are also costly. Some fish feed includes poultry or other land animal byproducts, but that would likely be prohibited, as would most synthetic ingredients.

Neil Sims, a longtime fish farmer based in Hawaii, says that if the rules have such strict limitations on feed, it could be unworkable for many companies.

“You can’t magically wave a wand and expect an organic supply chain to appear,” he says.

Even if some companies do take steps to grow organic fish, the process could potentially stretch beyond two years. The National Organic Standards Board, which advises USDA’s National Organic Program, is still reviewing some vaccines, vitamins and other substances considered essential to aquaculture.

Linda ODierno of the National Aquaculture Association says that despite some of the challenges, the industry is hoping that organics could help consumers feel more confident in U.S. product that is often already more expensive than seafood produced cheaply abroad.

“It could be good for industry and good for consumers,” she said.

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