Chilean authorities will impose stricter rules aimed at preventing salmon escapes, the South American nation's Fisheries and Aquaculture Undersecretariat (Subpesca) said.

New regulations are also aimed at preventing the sinking of cages, which occurred recently in a case involving salmon farmer Blumar.

The new rules are expected to encompass a new methodology relating to the measurement of currents, winds and waves, among others factors that may impact on netpens.