Educational fish such as Dutch nasal Tetra depends to a large extent on visual prompts to interact with peers and avoid obstacles with their peers. However, the availability of these visual prompts may be significantly affected by changes in environmental conditions (such as light intensity). The latest studies from Dr. Guy Theraulaz and colleagues from the University of Toulraz and the University of Toulouse discussed the impact of various light levels on the social interaction and collective behavior of these fish on the social interaction and collective behavior. Their discovery was published in PLOS computing biology, providing new insights for how environmental factors promoted collective animal behavior.
The research team conducted a series of experiments to analyze the motion of pulling rice nose under different lighting conditions. The study combines empirical data with computing models to rebuild and understand the interaction between a single fish and its environment.
Dr. Theraulaz said: “Our experiments show that the intensity of light intensity is strongly adjusted to social interaction between fish, which affects their collective movement mode.” He explained that this modulation is the basic nature of not changing interaction but changing it. In the case of strength and range, it has led to different modes of collective movement in fish groups.
Under weak light conditions, the fish shows a shorter and more frequent movement, which may be a strategy to avoid collision when visual information is limited. As the intensity of light increases, the fish needs longer, more direct paths, and interact with the borders of the peers and the environment. This behavior transition highlights the key role of visual information in maintaining the agglomeration and navigation space in the group.
In the simulation, the researchers found that with the increase of light, the fish tended to swim on the wall near the storage tank. Among smaller groups, this effect is more obvious, leading to a highly polarized swimming mode, all fish are arranged and moved in the same direction. However, in large groups, the fish shows different modes-a rotating “milling” structure is formed around the center of the water tank.
Dr. Theraz and his team developed an explosion and coastal swimming model based on the quantitative analysis of fish sports, focusing on how the interaction between fish and society and the physical environment changes with the intensity of light. The model successfully copied the results of the experimental observation, showing how the light -induced changes of the light -induced by the superior level of the group level became collective behavior.
Dr. Therauz pointed out: “The collective dynamics we observed under different light conditions shows that environmental factors such as light intensity can significantly affect social interaction.” “Our work not only clarifies the specific behavior of educating fish, but also It also provides a wider impact on the collective behavior of other animal species.
This study emphasizes the importance of environmental variables when studying the social interaction and collective behavior of animals. It also lays the foundation for the study of other factors (such as water turbidity or temperature) in the future, and it may also affect group dynamics in fish or other social species.
Journal reference
Xue, T., Li, X., Lin, G., Escobedo, R., Han, Z., Chen, X., Sire, C., theraulaz, G. The strength of fish farming. “PLOS calculate biology (2023). Doi: https: //doi.org/10.1371/journal.pcbi.1011636
Image reference
G. THERAULAZ, CRCA, CBI
David Villa ScienceImage/CBI/CNRS, Toulouse
About the author
Guy theraulaz He is a senior researcher at the National Science Research Center (CNRS), and he works in Toulouse Sur La Cognition Animale in Toulouse. He obtained a bachelor’s degree in Aix-Marseille from the Paul Sabatier University of TOULOUSE. He is an expert in collective animal behavior research and a pioneering researcher in the field of group intelligence. He is the author of more than a hundred publications and five books, including groups: from nature to artificial systems (Oxford University Press, 1999) and self -organized in biological systems (Princeton University Press, 2001) It is deemed to be a reference textbook. In 1996, he was awarded the CNR bronze medal.
Clemen · Father He is a senior researcher at the National Science Research Center (CNRS), and he work in LaboRatoire de Gysique Theorique in Tulz, France. He graduated from écolenormalesupérieure (ENS) and received a doctorate degree. Pierre et Marie Curie and ENS theoretical physics degree. He is an expert in social physics and non -balanced statistics. Since 2012, he has been an outstanding referee of the American Institute of Physics and won the CNR bronze medal in 1994.
Xu Li and tingting xue He is a doctorate student at the School of System Sciences of Beijing Normal University. They also worked at the center of Toulouse for 18 months. Their research interests include collective movement, phase change and key phenomena, machine learning and turbulence. They published several papers, including PLOS computing biology, machine learning: science and technology, Chinese physics B, physics review research, European physics letter.
