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. 2022 Mar 31;9:859848. doi: 10.3389/fvets.2022.859848

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Copyright © 2022 Onarheim, Janczak and Nordgreen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Box plots of untransformed whole-body cortisol sorted by (A) treatment, (B) tested vs. not tested, and (C) treatment by tested vs. not tested. The concentration of whole-body cortisol is given as ng/g. The data were analyzed with ANOVA on log transformed cortisol values. Housing, tested vs. not tested (±behavioral tests), and their interaction were included as fixed factors. Significant group differences from post-tests are marked with unique lowercase letters. Tested, fish tested in NTDT and BWPT; Not tested, not tested in any behavioral assays; GH, group housed; IH, individually housed; N = number of fish.