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The Levantine jellyfish Rhopilema nomadica and Rhizostoma pulmo swim faster against the flow than with the flow

Jellyfish locomotion and orientation have been studied in the past both in the laboratory, testing mostly small jellyfish, and in the field, where it was impossible to control the seawater currents. Utilizing an outdoor water flume, we tested the locomotion of jellyfish when swimming against and wit...

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Autores principales: Malul, Dror, Lotan, Tamar, Makovsky, Yizhaq, Holzman, Roi, Shavit, Uri
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6937341/
https://www.ncbi.nlm.nih.gov/pubmed/31889070
http://dx.doi.org/10.1038/s41598-019-56311-3
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author Malul, Dror
Lotan, Tamar
Makovsky, Yizhaq
Holzman, Roi
Shavit, Uri
author_facet Malul, Dror
Lotan, Tamar
Makovsky, Yizhaq
Holzman, Roi
Shavit, Uri
author_sort Malul, Dror
collection PubMed
description Jellyfish locomotion and orientation have been studied in the past both in the laboratory, testing mostly small jellyfish, and in the field, where it was impossible to control the seawater currents. Utilizing an outdoor water flume, we tested the locomotion of jellyfish when swimming against and with currents of up to 4.5 cm s(−1). We used adult jellyfish from two of the most abundant species in the eastern Mediterranean, Rhopilema nomadica and Rhizostoma pulmo, and measured their pulsation frequency and swimming speed relative to the water. While pulsation frequency was not affected by the water velocity, jellyfish swam faster against the current than with it. This finding suggests that jellyfish possess a sensory ability, whose mechanism is currently unknown, enabling them to gauge the flow and react to it, possibly in order to reduce the risk of stranding.
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spelling pubmed-69373412020-01-06 The Levantine jellyfish Rhopilema nomadica and Rhizostoma pulmo swim faster against the flow than with the flow Malul, Dror Lotan, Tamar Makovsky, Yizhaq Holzman, Roi Shavit, Uri Sci Rep Article Jellyfish locomotion and orientation have been studied in the past both in the laboratory, testing mostly small jellyfish, and in the field, where it was impossible to control the seawater currents. Utilizing an outdoor water flume, we tested the locomotion of jellyfish when swimming against and with currents of up to 4.5 cm s(−1). We used adult jellyfish from two of the most abundant species in the eastern Mediterranean, Rhopilema nomadica and Rhizostoma pulmo, and measured their pulsation frequency and swimming speed relative to the water. While pulsation frequency was not affected by the water velocity, jellyfish swam faster against the current than with it. This finding suggests that jellyfish possess a sensory ability, whose mechanism is currently unknown, enabling them to gauge the flow and react to it, possibly in order to reduce the risk of stranding. Nature Publishing Group UK 2019-12-30 /pmc/articles/PMC6937341/ /pubmed/31889070 http://dx.doi.org/10.1038/s41598-019-56311-3 Text en © The Author(s) 2019 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Malul, Dror
Lotan, Tamar
Makovsky, Yizhaq
Holzman, Roi
Shavit, Uri
The Levantine jellyfish Rhopilema nomadica and Rhizostoma pulmo swim faster against the flow than with the flow
title The Levantine jellyfish Rhopilema nomadica and Rhizostoma pulmo swim faster against the flow than with the flow
title_full The Levantine jellyfish Rhopilema nomadica and Rhizostoma pulmo swim faster against the flow than with the flow
title_fullStr The Levantine jellyfish Rhopilema nomadica and Rhizostoma pulmo swim faster against the flow than with the flow
title_full_unstemmed The Levantine jellyfish Rhopilema nomadica and Rhizostoma pulmo swim faster against the flow than with the flow
title_short The Levantine jellyfish Rhopilema nomadica and Rhizostoma pulmo swim faster against the flow than with the flow
title_sort levantine jellyfish rhopilema nomadica and rhizostoma pulmo swim faster against the flow than with the flow
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6937341/
https://www.ncbi.nlm.nih.gov/pubmed/31889070
http://dx.doi.org/10.1038/s41598-019-56311-3
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