You brought a couple of interesting points in these two messages.
Will this put smaller scale fishermen out of business in that area surely the farmed octopuses are going to be cheaper otherwise people wouldn't invest vast amounts of money just to get this off the ground. If it is a similar situation as the U.K and the smaller scale fishermen they are barely getting by as it is. Its O.K saying quality costs but your average person is on a tight budget.
Certainly not. The plan is to deploy the facility in Spanish waters. So yes, Spain eats a lot of octopus. The catches are going down due overfishing, and the demans is increasing. It depend on the source, but some sources (in spanish) reports that up to 75% of octopuss sold cames actually from overseas. I don't think the farm would affect negatively to the local fishermen. It will also alleviate the negative impact in third party countries (Morocco is the largest so far in terms of exportation to Spain, Mauritania also suffers for an intense fishery of octopuses too, but I am not sure it goes to Spain).
The small scale won't be affected, at least it remains me to the scarce and expensive scallops catch in NW Spain. Now the marked is filled with those coming from Peru and Chile, they are much cheaper and affordable. The local ones, however, remains pretty expensive. Well, it is my opinion, of course.
What was the mortality rate before they devised a more successful system that reduced deaths
rates? They seem to have conveniently left that info out. I was very surprised to read that c9% of chickens reared for food die before being ready for slaughter, which obviously isn't massively different to the 15% mortality rate quoted for this project. The problem is every little thing which would improve welfare for these animals costs money which means either higher costs for the consumer or reduced profits and usually the margins are very tight in any factory farming set up. Obviously not defending the investors in this project only saying how these things work
I believe that that they putting in some serious effort into being able to farm Cod, Tuna etc but their temperament is totally unsuited to intensive farming. I don't know how far away they are from being able to do this as it was in a documentary I was watching a while back. God knows what will happen if this takes off.
There is something clear here. We are talking about an experimental facility, so there is a lot of unknowns, selection, refinement, improvements to be discovered as it goes once the process starts (because we know that what we are growing in our backyards, and raising in our barns, is the product of intense selection, a lot of misses, and some hits, to the point that most humans prefer human created varieties than the original, wild cultivars or species). Things needs time to improve, including the own premises operations, and the selection of individuals to breed and maintain the captive stock.
BTW, the cod has been successfully farmed, but as far as I remember it is a matter of money/investments and penetrating the market (in fact, I think I remember farmed cod was used in a royal wedding in Norway?).
Bluefin is either wild, or (more often than people think) ranched in the ocean. Its breeding cycle has been completed in the lab and experimental facilities, but yet, it seems completely unsuitable for farming (but remember the Atlantic salmon, a truly migratory anadromous species)