Behavior analysis of juvenile steelhead trout under blue and red light color conditions based on multiple object tracking
文献类型： 外文期刊
作者： Li, Ziyu 1 ; Chen, Xueweijie 5 ; Huang, Jinze 1 ; An, Dong 1 ; Zhou, Yangen 5 ;
作者机构： 1.China Agr Univ, Natl Innovat Ctr Digital Fishery, Beijing, Peoples R China
2.China Agr Univ, Key Lab Smart Farming Aquat Anim & Livestock, Minist Agr & Rural Affairs, Beijing, Peoples R China
3.Beijing Engn Res Ctr Agr Internet Things, Beijing, Peoples R China
4.China Agr Univ, Coll Informat & Elect Engn, Beijing, Peoples R China
5.Ocean Univ China, Key Lab Mariculture, Minist Educ, Qingdao, Peoples R China
关键词： steelhead trout; fish behavior; behavior quantify; aquaculture environment regulation; light color
期刊名称：FRONTIERS IN MARINE SCIENCE （ 影响因子：2.8； 五年影响因子：3.7 ）
ISSN：
年卷期： 2024 年 11 卷
页码：
收录情况： SCI
摘要： Introduction The lighting environment significantly influences fish behavior. This study explores the impact of diverse lighting conditions on the behavior of steelhead trout (Oncorhynchus mykiss) to illuminate the mechanisms underlying their behavioral responses.Methods This experiment was set up with six treatments at a constant light intensity of 150 lx: 12h white light + 12h dark (12 W), 12h blue light + 12h dark (12B), 12h red light + 12h dark (12 R), 1.5h blue light + 9h red light + 1.5h blue light + 12h dark (3B9R), 3h blue light + 6h red light + 3h blue light + 12h dark (6B6R), total 12h of blue and red light + 12h dark (T12BR). A multiple object tracking method, YOLOv5 with SORT, was employed to capture the movement trajectory of each fish, quantifying three motion metrics: swimming velocity, swimming angular velocity, and generalized intersection over union.Results The results revealed that fish exposed to 12R light environment showed significantly higher activity levels than other groups. The mixed light environments (3B9R, 6B6R) formed significant differences in behavioral metrics with 12R earlier than pure light environments (12B, 12W, T12BR), indicating sudden light color changes should be avoided. Fish in the 3B9R environment exhibited the lowest activity level but highest growth performance, with the highest specific growth rate of 1.91 +/- 0.12 d-1, a value significantly surpassing the lowest recorded rate, supported by a p-value of 0.0054, indicating it is suitable for steelhead trout cultivation.Discuss Behavioral significant differences were observed as early as week eight, much earlier than physiological differences, which became apparent by week 16. Overall, this paper employs computer vision methods to study the impact of different light colors on fish behavior, found that 3B9R is the optimal lighting condition tested and sudden light color changes should be avoided, offering a new perspective on light conditions and behavior in steelhead trout cultivation.
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