Proconco, which supplies 1.3 million metric tons of pangasius feed each year, said pangasius' image is a critical issue, and the industry needed to "make some noise" to counteract negative reports and rumours among European and U.S. buyers.

"It’s very difficult to have a common approach. VASEP is good, it’s working well, but they have no strong power -- each company is doing what they want," Philippe Serene, managing director of Proconco, told IntraFish.

"It’s difficult to try to call in action plans to try to protect and strengthen the image, there is other noise.