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. 2021 Mar 23;11:6615. doi: 10.1038/s41598-021-85296-1

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Whole-body cortisol levels from larval zebrafish exposed to (A) continuous noise at different amplitudes (3 dpf: F_{(2, 35)} = 4.84, p = 0.014; 5 dpf: F_{(2, 29)} = 4.37, p = 0.023) and (B) varying noise temporal patterns at 150 dB re 1 μPa (3 dpf: F_{(4, 45)} = 2.23, p = 0.082; 5 dpf: F_{(4, 35)} = 2.65, p = 0.052). Control- silent conditions, CN- continous noise at either 130 (CN₁₃₀) or 150 dBre 1 μPa (CN₁₅₀), IN- intermittent regime with short (IN1), medium (IN2) and long noise segments (IN3). Error bars represent 95% confidence intervals. Different letters indicate statistically significant differences between specific groups based on post hoc tests.