Optimization of swim depth across diverse taxa during horizontal travel.

Autor:	Stokes KL; Department of Biosciences, Swansea University, Swansea, Wales SA2 8PP, United Kingdom., Esteban N; Department of Biosciences, Swansea University, Swansea, Wales SA2 8PP, United Kingdom., Casale P; Department of Biology, University of Pisa, Pisa 56216, Italy., Chiaradia A; Conservation Department, Phillip Island Nature Parks, Cowes, VIC 3925, Australia., Kaska Y; Department of Biology, Pamukkale University, Denizli 20160, Türkiye., Kato A; Centre d'Études Biologiques de Chizé, UMR7372 CNRS-La Rochelle Université, Villiers-en-Bois 79360, France., Luschi P; Department of Biology, University of Pisa, Pisa 56216, Italy., Ropert-Coudert Y; Centre d'Études Biologiques de Chizé, UMR7372 CNRS-La Rochelle Université, Villiers-en-Bois 79360, France., Stokes HJ; Department of Biosciences, Swansea University, Swansea, Wales SA2 8PP, United Kingdom., Hays GC; Deakin Marine Research and Innovation Centre, School of Life and Environmental Sciences, Deakin University, Geelong, VIC 3280, Australia.
Jazyk:	angličtina
Zdroj:	Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2024 Dec 24; Vol. 121 (52), pp. e2413768121. Date of Electronic Publication: 2024 Dec 16.
DOI:	10.1073/pnas.2413768121
Abstrakt:	Semiaquatic taxa, including humans, often swim at the air-water interface where they waste energy generating surface waves. For fully marine animals however, theory predicts the most cost-efficient depth-use pattern for migrating, air-breathing species that do not feed in transit is to travel at around 2 to 3 times the depth of their body diameter, to minimize the vertical distance traveled while avoiding wave drag close to the surface. This has rarely been examined, however, due to depth measurement resolution issues at the surface. Here, we present evidence for the use of this strategy in the wild to the nearest centimeter and document the switch to shallow swimming during naturally occurring long-distance migrations. Using high-resolution depth-accelerometry and video data for little penguins ( Eudyptula minor ) and loggerhead turtles ( Caretta caretta ), satellite-relayed data for green turtles ( Chelonia mydas ), and literature data for further sea turtle, penguin, and whale species, we show that near-surface swimming is likely used broadly across nonforaging diving animals to minimize the cost of transport. Competing Interests: Competing interests statement:The authors declare no competing interest.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu