The makers of controversial documentary Seaspiracy appear to have retracted their claim that it takes 5-20 kilos of forage fish to make 1 kilo of farmed salmon, according to aquaculture feed company BioMar.

The claim had been made both in the film and also on Seaspiracy's website but was removed from the film before broadcast at the request of Netflix's legal team and has now been removed from the site and replaced with a slightly less damning statement, according to a LinkedIn post from BioMar.