Eighteen salmon production sites in Chile's Aysen and Los Lagos regions are implementing contingency plans to react to growing losses from low oxygen levels and algal blooms.

Chile's National Fisheries and Aquaculture Service (Sernapesca) said in an update Wednesday that a total of 3,949 metric tons of salmon have been lost since the outbreak began: 12 sites in the Aysen region have lost 2,033 metric tons, while six sites in Los Lagos have lost 1,916 metric tons.

The total losses account for 2.5