Chronic mild stressors in humans are known to cause learning and memory problems. However, according to researchers at Uni Research AS this is true with salmon. To the extent that salmon have a successful future is dependent on their ability to learn and adapt rapidly to new environments. For example, juvenile salmon being transferred from rearing tanks to sea cages. The research team in the Integrative Fish Biology group at Uni Research AS recently showed that salmon exposed to poor water quality were poor learners and that markers in the brain showed that fish have experienced chronic mild stress. Identifying such environmental situations that trigger chronic mild stress will improve fish welfare and reduce fish mortality in aquaculture systems. In a recent scientific article titled “Environmental enrichment promotes neural plasticity and cognitive ability’ showed that raising fish in an environment with obstacles or “furniture’ improves their learning ability. These types of studies can help fishery managers visualize certain methods that can provide an environment to help improve the welfare of fish and enhance production.
Blog Author:Stephen Arturo Greenlaw
Scientific Journal Article : https://rspb.royalsocietypublishing.org/content/280/1767/20131331