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. 2021 Apr 27;11:9109. doi: 10.1038/s41598-021-88542-8

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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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Experimental glass tank for clam reburial and survival experiments. (a) The sump (centre) was connected to the tank through 3 pumps, forming a closed circuit. The sump was equipped with sponges serving as mechanical and biological filters (left) and with a skimmer system to remove the organic particulate matter (middle). (b) Aerators placed outside the tank (picture taken on day 15). No clams are visible on the sediment surface, since by 21 h all had reburied. (c) GoPro cameras placed outside the tank and programmed to shoot at 15-s intervals. At the beginning of the reburial experiment, all clams are still visible on the sediment surface.