It's going to be great when those sea lice start going around in the wild populations. 
Sea lice levels rise and fall, Alaska wild caught is rampant with them on certain years and those fish are out of the influence of the BC farms. Sea lice can be an issue but farms are more likely to create localized epidemics from lice that were originally brought in by wild fish in the area.
Not sure what the talk of sea lice is, if, and a big if it is, these fish have sea lice (Not a single one of over 100 I've seen had even one) the lice came from "wild" fish.
Other than maybe the yellowmouth thing, and maybe even that, the pen raised fish probably have more to worry about catching diseases from the local fish than the other way around since our local fish have genetic resistance to local diseases.
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