Illuminance-tuned collective motion in fish
Abstract We experimentally investigate the role of illumination on the collective dynamics of a large school (ca. 50 individuals) of Hemigrammus rhodostomus. The structure of the group, defined using two order parameters, is quantified while progressively altering the visual range of the fish throug...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-05-01
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| Series: | Communications Biology |
| Online Access: | https://doi.org/10.1038/s42003-023-04861-8 |
| _version_ | 1797801300758364160 |
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| author | Baptiste Lafoux Jeanne Moscatelli Ramiro Godoy-Diana Benjamin Thiria |
| author_facet | Baptiste Lafoux Jeanne Moscatelli Ramiro Godoy-Diana Benjamin Thiria |
| author_sort | Baptiste Lafoux |
| collection | DOAJ |
| description | Abstract We experimentally investigate the role of illumination on the collective dynamics of a large school (ca. 50 individuals) of Hemigrammus rhodostomus. The structure of the group, defined using two order parameters, is quantified while progressively altering the visual range of the fish through controlled cycles of ambient light intensity. We show that, at low light levels, the individuals within the group are unable to form a cohesive group, while at higher illuminance the degree of alignment of the school correlates with the light intensity. When increasing the illuminance, the school structure is successively characterized by a polarized state followed by a highly regular and stable rotational configuration (milling). Our study shows that vision is necessary to achieve cohesive collective motion for free swimming fish schools, while the short-range lateral line sensing is insufficient in this situation. The present experiment therefore provides new insights into the interaction mechanisms that govern the emergence and intensity of collective motion in biological systems. |
| first_indexed | 2024-03-13T04:48:22Z |
| format | Article |
| id | doaj.art-4f1ea0c0372b4d698b59cd579daad9aa |
| institution | Directory Open Access Journal |
| issn | 2399-3642 |
| language | English |
| last_indexed | 2024-03-13T04:48:22Z |
| publishDate | 2023-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Biology |
| spelling | doaj.art-4f1ea0c0372b4d698b59cd579daad9aa2023-06-18T11:22:17ZengNature PortfolioCommunications Biology2399-36422023-05-01611610.1038/s42003-023-04861-8Illuminance-tuned collective motion in fishBaptiste Lafoux0Jeanne Moscatelli1Ramiro Godoy-Diana2Benjamin Thiria3Laboratoire de Physique et Mécanique des Milieux Hétérogènes (PMMH), CNRS UMR 7636, ESPCI Paris—PSL Research University, Sorbonne Université—Université Paris CitéLaboratoire de Physique et Mécanique des Milieux Hétérogènes (PMMH), CNRS UMR 7636, ESPCI Paris—PSL Research University, Sorbonne Université—Université Paris CitéLaboratoire de Physique et Mécanique des Milieux Hétérogènes (PMMH), CNRS UMR 7636, ESPCI Paris—PSL Research University, Sorbonne Université—Université Paris CitéLaboratoire de Physique et Mécanique des Milieux Hétérogènes (PMMH), CNRS UMR 7636, ESPCI Paris—PSL Research University, Sorbonne Université—Université Paris CitéAbstract We experimentally investigate the role of illumination on the collective dynamics of a large school (ca. 50 individuals) of Hemigrammus rhodostomus. The structure of the group, defined using two order parameters, is quantified while progressively altering the visual range of the fish through controlled cycles of ambient light intensity. We show that, at low light levels, the individuals within the group are unable to form a cohesive group, while at higher illuminance the degree of alignment of the school correlates with the light intensity. When increasing the illuminance, the school structure is successively characterized by a polarized state followed by a highly regular and stable rotational configuration (milling). Our study shows that vision is necessary to achieve cohesive collective motion for free swimming fish schools, while the short-range lateral line sensing is insufficient in this situation. The present experiment therefore provides new insights into the interaction mechanisms that govern the emergence and intensity of collective motion in biological systems.https://doi.org/10.1038/s42003-023-04861-8 |
| spellingShingle | Baptiste Lafoux Jeanne Moscatelli Ramiro Godoy-Diana Benjamin Thiria Illuminance-tuned collective motion in fish Communications Biology |
| title | Illuminance-tuned collective motion in fish |
| title_full | Illuminance-tuned collective motion in fish |
| title_fullStr | Illuminance-tuned collective motion in fish |
| title_full_unstemmed | Illuminance-tuned collective motion in fish |
| title_short | Illuminance-tuned collective motion in fish |
| title_sort | illuminance tuned collective motion in fish |
| url | https://doi.org/10.1038/s42003-023-04861-8 |
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