There's a national science battle in progress over the issue of salmon fish. The battle is about the fate of the salmon industry, salmon farms, and the work of activists, who have scientific evidence to claim that wild salmon is being killed by fish farms and are a threat for the existence of wild salmon, ocean fisheries and ecosystems.

In December 2007, researchers at the Centre for Mathematical Biology (CMB) at the University of Alberta published a report, which claimed that sea lice from fish farms in British Columbia were tainted wild pink salmon.

At that time, the University of Alberta's Public Relations crew affirmed the approaching down-fall of wild salmon. The study had been conducted by fisheries ecologist, Martin Krkosek and eco-activist, Alexandra Morton, which confirmed that the population of pink salmon has been quickly declining for four years.

In addition to this, the scientists anticipate a collapse of 99% in another four years or two salmon generations.

The level of sea lice, which is a natural parasite, is also decreasing in both wild and farm salmon. According to CMB, science is wrong, as the farming of great salmon proved to be a false alarm. Still, the reports of extinction stay behind and also dominate the public opinion.