Chilean salmon farmer Camanchaca said it has suffered minimal interruption to salmon supplies to the United States, despite widespread protests in Chile that have seen the industry reduced to running at at half capacity.

"It's still a very day-to-day situation as we see things evolve," Camanchaca President Cesar Lago told IntraFish.

Looking at the wider picture, Lago estimates that around 50 percent less salmon has arrived in the United States from Chile this week, although he adds that every company's situation is different.

"With great effort from our team down in Chile we have been able to supply our key program accounts without missing a beat," he said.

Reduced supplies of salmon saw prices rise by between 9-10 percent from Tuesday to Friday, Lago calculates.

The company's own situation has been helped by the location of its Concepcion processing facilities in central Chile, which are much further north than the main protests.

Civil unrest has particularly hindered processors on Chiloe Island off the coast of southern Chile.

Protests began a just over a week ago after a price hike was announced for fares on the metro in Chile's capital city of Santiago. Protests spread as demonstrators displayed their anger over a number of issues, including social inequality.

Despite an apology on Tuesday evening from Chilean President Sebastian Pinera, who unveiled a package of measures aimed at quelling the disorder, protests have continued. Some regions have been operating under a state of emergency that has seen curfews imposed.

The curfews have forced salmon processing operations and other business to temporarily suspend night shifts at their facilities, which is also contributing to a slowdown in salmon production.