Steve,
Where is the farm in Ship Harbour ? I grew up on the eastern shore, my parents live in Pleasant Harbour and my step-fathers family owns Krauch's Smokehouse but i haven't heard anything about there being an actual operating farm in the water from them. I know where the mussel farm is, is it somewhere close to that ?
I can't see Spry Bay being a very good place as there currently isn't any wharf that is fit to tie anything larger than a dorey to and access to the water there is extremely limited unless they plan on using the facilities at Abriel's fish plant.
Beaver Harbour at least had a government wharf although i don't know what kind of shape it's in now. It also has very limited access to the water from any road.
Unless these people are using Abriel Fisheries as a processing area and storage area for feed, nets, etc then i can't see them getting too large without having to do a major investment in infrastructure.