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FARMED FISH GET DEPRESSED
“Under aquaculture conditions, it is common to find a proportion of farmed salmon, which are easily catchable at the surface and exhibit a small size, anorexia and a behaviourally inhibited profile. Such moribund fish, known as ‘drop outs’ or ‘loser fish’, are well known to farmers but very little is known about the aetiology leading up to this phenomenon”
http://rsos.royalsocietypublishing.org/content/3/5/160030

Brain serotonergic activation in growth-stunted farmed salmon: adaption versus pathologySignalling systems activated under stress are highly conserved, suggesting adaptive effects of their function. Pathologies arising from continued activation of such systems may represent a mismatch between evolutionary programming and current environments. Here, we use Atlantic salmo Read more...