Hate it or love it, everyone is paying close attention to every development in land-based aquaculture.

Forbes recently picked up the trend as a key innovation for sustainable aquaculture, and Oslo-listed land-based salmon farmer Atlantic Sapphire is now worth NOK 7 billion ($802.5 million/€714 million).

But land-based aquaculture experts at the IntraFish Seafood Investor Forum last month warned that many land-based projects tank -- and many of those currently underway won't make it.

“There is going to be a lot of enthusiasts," said Erik Heim, president at Nordic Aquafarms.