Salmon giant Tassal silent on mass death of fish near Port Arthur

Tasmanian aquaculture giant Tassal has reported a sizeable salmon mortality event affecting its Long Bay lease near Port Arthur in the state’s south but is refusing to detail the scale or cause of the deaths.

Tasmania’s Environment Protection Authority has confirmed Tassal notified it of increased mortality at Long Bay across five individual cages earlier this month.

Mass salmon mortality events must be reported if deaths are more than 0.25 per cent of salmon contained in a single cage per day for three…