Salmon divergence. Salmon eggs are laid in freshwater streams typically at high latitudes. The eggs hatch into alevin or sac fry. The fry quickly develop into parr with camouflaging vertical stripes. The parr stay for six months to three years in their natal stream before becoming smolts, which are distinguished by their bright, silvery colour with scales that are easily rubbed off. Only 10% of all salmon eggs are estimated to survive to this stage. The smolt body chemistry changes, allowing them to live in salt water. While a few species of salmon remain in fresh water throughout their life cycle,
Salmon cannery for all of the workers on site. Salmon cannery A salmon cannery is a factory that commercially cans salmon. It is a fish processing industry that became established on the Pacific coast of North America during the nineteenth century, and subsequently expanded to other parts of the world that had easy access to salmon. The "father of canning" is the Frenchman Nicolas Appert. In 1795, he began experimenting with ways to preserve foodstuffs, placing food in sealed glass jars and then placing the jars in boiling water. During the first years of the Napoleonic Wars, the French government offered a