2003). Coho salmon artificially bred for 4 generations confirmed considerably less aggressive actions and also a decreased common activity than wild salmon (Fleming and Gross 1992). Hatchery reared salmonids showed a weaker antipredator reaction (Johnsson et al. 1996) and less physiological tension resulting from larger stocking densities (Mazur and Iwama https://johnathanzltdr.bloggactivo.com/32557943/helping-the-others-realize-the-advantages-of-fresh-salmon-on-sale