The study of the Loch Shielddaig site in Scotland showed the lice came from the wild, and somehow congregated at fish farms after hitching rides on other species, or being carried there by currents.
“They come from the wild, and that infection pressure seems to be over-magnified within the farms, so the amount of parasites released from the farms is overestimated in those models and is not as pronounced as was published,” said Ian Bricknell, a professor of aquaculture biology and director of the Aquaculture Research Institute at University of Maine.
“There
