Salmon run plankton. At this point the baby salmon are called "fry". At the end of the summer the fry develop into juvenile fish called "parr". Parr feed on small invertebrates and are camouflaged with a pattern of spots and vertical bars. They remain in this stage for up to three years. As they approach the time when they are ready to migrate out to the sea the parr lose their camouflage bars and undergo a process of physiological changes which allows them to survive the shift from freshwater to saltwater. At this point salmon are called "smolt". Smolt spend time in
Joseph Salmon (publisher) Joseph Salmon (publisher) Joseph Salmon (1845 – 9 November 1923) was a British bookseller turned postcard publisher and printer, and the founder of J Salmon Ltd in 1880, the UK's oldest postcard and calendar publisher. He was born in the parish of St George in the East, in what is now Stepney, London, the son of Joseph and Maria Salmon. His father was a baker. In the 1881 census, he was listed as a stationer and printer, with five assistants and two boys working for him. He retired in 1898, and his son, also called Joseph, took over the family