That has been the case. It is certainly a major disaster as far as disease is concerned in Chile. It crippled that industry for a number of years.
In terms of the sea lice issue on the east coast of Canada, in every jurisdiction where fish are in the ocean, there have been these kinds of problems.
It actually is the stated purpose of those who are developing closed containment. Those who want to farm that way see this as a way to get away from those problems.