Category: Resilience News | Page 11 | Global Resilience Institute

Study: Blood virus affecting farmed Atlantic Salmon may cause related disease in British Columbia Chinook salmon

A highly contagious blood virus may be cause for concern off the coast of British Columbia, according to a new study. The paper -- published by a team of scientists at the Pacific Salmon Foundation and Fisheries and Oceans Canada -- states that the Piscine orthoreovirus (PRV) virus causing disease in some farmed Atlantic salmon, may also cause a related disease in Chinook salmon in British Columbia. The virus is linked to inflammation in fish skeletal and heart muscles, making it difficult for the heart to pump blood into the bloodstream and impeding the salmon’s ability to swim. “The results of this study are significant because they show– for the first time – strong evidence that the same strain of PRV that causes heart and skeletal muscle inflammation disease (HSMI) in Atlantic salmon is likely to cause disease in at least one species of Pacific salmon,” said Dr. Brian Riddell, president and CEO of the Pacific Salmon Foundation. “These findings add to the existing concerns about the potential impacts of open net salmon farming on wild Pacific salmon off the coast of BC”.A highly contagious blood virus may be cause for concern off the coast of British Columbia, according to a new study. The paper -- published by a team of scientists at the Pacific Salmon Foundation and Fisheries and Oceans Canada -- states that the Piscine orthoreovirus (PRV) virus causing disease in some farmed Atlantic salmon, may also cause a related disease in Chinook salmon in British Columbia. The virus is linked to inflammation in fish skeletal and heart muscles, making it difficult for the heart to pump blood into the bloodstream and impeding the salmon’s ability to swim. “The results of this study are significant because they show– for the first time – strong evidence that the same strain of PRV that causes heart and skeletal muscle inflammation disease (HSMI) in Atlantic salmon is likely to cause disease in at least one species of Pacific salmon,” said Dr. Brian Riddell, president and CEO of the Pacific Salmon Foundation. “These findings add to the existing concerns about the potential impacts of open net salmon farming on wild Pacific salmon off the coast of BC”.