Observations on the acclimatisation of the true salmon (Salmo salar), in Tasmanian waters, and upon the reported salmon disease at the breeding establishment on the River Plenty.

The disease, as I recognised immediately upon reading the announcement referred to, is one prevalent among the fish to a greater or less degree at every breeding season, and is caused, by the growth upon some wounded or abraded surface of the fishes skin of a species of aquatic fungus, known technically by the name of Saprolegnia ferax. From the point first attacked the fungus gradually invades and disintegrates the surrounding tissues, living at the expense of and absorbing all their nutrient juices and ultimately, it not eradicated, destroys the fishes life.