Sugpatan Abangan Alexa, Simon Victor, Morandeau Fabien, Martignac François, Kopp Dorothée, Faillettaz Robin
DECOD, L'Institut Agro, IFREMER, INRAE, Lorient, France.
IFREMER, University of Brest, CNRS, IRD, LEMAR, Plouzané, France.
J Fish Biol. 2025 Apr 1;107(2):652-7. doi: 10.1111/jfb.70038.
Infrared (IR) light is widely accepted as a non-intrusive lighting for discreet observation but relevant studies are scarce. The response of European seabass Dicentrarchus labrax (Linnaeus 1758) towards IR light was tested during laboratory experiments alternating sequences of IR light and dark conditions. Swimming trajectories were extracted from hydroacoustic videos and behavioural metrics (e.g. speed, bearings) were quantified from the D. labrax movement patterns. D. labrax showed no preference nor deterrence towards IR light, supporting the use of discreet IR light as an alternative to visible light for monitoring unbiased D. labrax behaviour.
红外（IR）光作为一种用于隐秘观察的非侵入性照明方式已被广泛接受，但相关研究却很匮乏。在实验室实验中，通过交替红外光和黑暗条件的序列，测试了欧洲海鲈（Dicentrarchus labrax，林奈，1758年）对红外光的反应。从水声视频中提取游泳轨迹，并根据欧洲海鲈的运动模式对行为指标（如速度、方位）进行量化。欧洲海鲈对红外光既无偏好也无抵触，这支持了使用隐秘红外光作为可见光的替代方案来监测欧洲海鲈的无偏行为。
