2003). Coho salmon artificially bred for 4 generations showed considerably less aggressive conduct plus a lower standard action than wild salmon (Fleming and Gross 1992). Hatchery reared salmonids confirmed a weaker antipredator reaction (Johnsson et al. 1996) and less physiological anxiety due to higher stocking densities (Mazur and Iwama 1993) https://archerdjpqn.thezenweb.com/a-simple-key-for-buy-fresh-whole-salmon-unveiled-71263679