2003). Coho salmon artificially bred for 4 generations showed a lot less aggressive conduct and a decrease typical activity than wild salmon (Fleming and Gross 1992). Hatchery reared salmonids showed a weaker antipredator reaction (Johnsson et al. 1996) and less physiological pressure resulting from bigger stocking densities (Mazur and Iwama https://spencerhhulf.nizarblog.com/33422125/helping-the-others-realize-the-advantages-of-fresh-salmon-on-sale