Transmission of infection from neighbouring fish farms is the main way that the viral disease Infectious Salmon Anaemia (ISA) spreads during epidemics. This is the key conclusion of Trude Lyngstad's doctoral research.
This article by Peter S. Rand and B. A. Berejikian et al, from the Wild Salmon Center in Portland, Oregon, US, and the NOAA Northwest Fisheries Science Center, looks at the ecological interactions between wild and hatchery salmonids.
Using fishmeal to feed to fish in aquaculture fisheries could prove to be unsustainable in the long run as the aquaculture industry grows and ocean fish stocks diminish, write Chris Harris.
