Photosynthetic oxygen bubble stream sounds from aquatic macrophytes, and their consequences for acoustic biodiversity inventories and acoustic communication in shallow freshwater settings

PLOS ONE | https://doi.org/10.1371/journal.pone.0317424 April 23, 2025 11 / 13 PLOS ONE Photosynthetic oxygen bubble stream sounds from aquatic macrophytes animal communication occurs, at least during sunny daylight conditions. Whether POBS impede communication by organisms, such as corixids, or whether they provide a potential acoustic refuge from predators [42,43] remains an intriguing question for further research. Acknowledgments We thank Murray Gingras for gas analysis and help in the field early on in the project, Jesse Acorn for help in the field, and the members of the “Frost Lab” in the Department of Renew- able Resources at the University of Alberta for helpful discussions of an earlier draft of this paper. Author contributions Conceptualization: Katie Campbell, Yelena Cerezke-Riemer, John H. Acorn. Data curation: Katie Campbell. Investigation: Katie Campbell, Yelena Cerezke-Riemer, John H. Acorn. Project administration: John H. Acorn. Resources: John H. Acorn. Supervision: John H. Acorn. Writing – original draft: Katie Campbell. Writing – review & editing: Katie Campbell, John H. Acorn. References 1. Mazaris AD, Kallimanis AS, Chatzigianidis G, Papadimitriou K, Pantis JD. Spatiotemporal analysis of an acoustic environment: interactions between landscape features and sounds. Landscape Ecol. 2009;24(6):817–31. https://doi.org/10.1007/s10980-009-9360-x 2. Pijanowski BC, Villanueva-Rivera LJ, Dumyahn SL, Farina A, Krause BL, Napoletano BM, et al. Soundscape Ecology: The Science of Sound in the Landscape. BioScience. 2011;61(3):203–16.

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