New method for measuring stress in fish
- FishLab Editor
- 12 hours ago
- 1 min read
A new analytical method for measuring stress in fish was recently published in the scientific journal Molecules. The article is based on Vanessa Meling's master's project, which was a collaboration between Oslo Metropolitan University, the University of Stavanger and Fishlab AS.
The work was carried out at FishLab AS in Stavanger, where Vanessa developed and validated a new LC-MS/MS method for detection and quantification of cortisol metabolites in feces from Atlantic salmon. This has been groundbreaking work as no such method has previously been developed and described. The work has now resulted in an excellent scientific article in the renowned journal Molecules.
Reduced fish health often has multifactorial causes, but it is difficult to know how the fish are really doing, and acute mortality often occurs "suddenly."
As a result, the underlying causal relationships often remain unclear, and the lack of insight makes it difficult to work on continuous improvement.
" Objective and quantitative measurement of the stress level of the fish is important because periods of increased stress lead to greater susceptibility to diseases and slower wound healing, " says Vanessa.
New tool
The new analysis makes it possible to quantify the stress level of fish in an objective way without killing the fish. The method can therefore be used as a new tool in the work to strengthen fish health and increase survival in Norwegian aquaculture.
We congratulate Vanessa on a beautifully completed master's project!
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