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Chronic stress quantification in sharks

Published on 22-06-2021 by Nathalie Briels Projects

Biting stress: starting point to evaluate chronic stress in elasmobranchs.

This study investigates chronic stress in sharks by quantification of 1α-hydroxycorticosterone using UPLC-MS/MS in a single shark tooth. Sharks continuously replace their teeth, making it a suitable non-invasive tissue. Depending on the species and life stage, tooth replacement rates can range from several days to several months, enabling us to quantify stress experienced by the animal in the preceding time period.

The results of this project will serve in wildlife conservation, to evaluate the efficiency of marine protected areas for example, as in welfare evaluation of zoo-life