A report on fish health should be more important to a salmon farming investor than the firm's financials, according to Dag Sletmo, senior advisor at DNB Bank, speaking at the Sintef conference Tekmar last week.

"What report would Gordon Gekko choose?" Sletmo asked, referring to the anti-hero in the 1987 film "Wall Street". "The 'secret financial report,' or the 'secret fish health report'? I'm convinced he would have chosen the fish health report."

Fish health, Sletmo said, is the most important single factor to explain a farmer's results.