六种鲤科鱼类群体行为特征的种间差异及其对运动训练的响应

INTER-SPECIES DIFFERENCES IN GROUP BEHAVIOURAL CHARACTERISTICS OF SIX CYPRINID FISH SPECIES AND THEIR RESPONSES TO EXERCISE TRAINING

  • 摘要: 为探究6种鲤科鱼类群体行为特征的种间差异及其对运动训练的响应, 本研究选取鲫(Carassius auratus)、丁鱥(Tinca tinca)、鲤(Cyprinus carpio)、中华倒刺鲃(Spinibarbus sinensis)、岩原鲤(Procypris rabaudi)和光唇鱼(Acrossocheilus fasciatus)作为实验对象, 在25℃下, 各自分为对照组、无氧运动训练组(1次/d)和有氧运动训练组4倍体长/秒(bl/s), 18h/d进行为期3周的处理。随后在六臂迷宫中测定鱼群在无捕食者刺激和模拟捕食者刺激下的群体中心密度(Center density, CD)、庇护所臂密度(Shelter density, SD)、非庇护所臂密度(Non-shelter density, NSD)和凝聚力指数(Cohesion index, IC)。结果发现: 在无捕食者刺激和模拟捕食者刺激下, 鲫、丁鱥、鲤和中华倒刺鲃对照组都展现出相对较高的CD、NSD、Ic值和相对较低的SD, 岩原鲤对照组展现出相对较低的CD、NSD和相对较高的SD、IC值, 光唇鱼对照组展现出相对较低的CD、SD、IC值和相对较高的NSD。无论有无捕食者刺激, 运动训练对鲫、丁鱥、鲤的群体行为特征都没有产生统计学意义上的显著影响。无氧运动训练导致岩原鲤在无捕食者刺激下NSD显著降低81%, IC值显著增加21% (P<0.05); 无氧运动训练导致光唇鱼在模拟捕食者刺激下IC值显著增加39% (P<0.05); 有氧运动训练导致中华倒刺鲃在无捕食者刺激下IC值显著降低17% (P<0.05)。研究表明: (1)6种鲤科鱼类群体行为特征具有显著的种间差异, 可能与其生活习性和生境因素有关; (2)运动训练对6种鲤科鱼类群体行为特征具有不同程度的影响, 其影响依赖于鱼的种类和训练制度。

     

    Abstract: To investigate interspecific variations in group behaviour characteristics among six Cyprinidae species and their responses to exercise training, we selected Carassius auratus, Tinca tinca, Cyprinus carpio, Spinibarbus sinensis, Procypris rabaudi, and Acrossocheilus fasciatus as experimental subjects. At 25℃, each species was divided into control groups, anaerobic exercise training groups (1session/d), and aerobic exercise training groups 4 times body length per second (bl/s), 18h/d for three weeks. Subsequently, within a six-arm maze, the following parameters were measured under both non-predator and simulated predator stimuli: centre density (CD), shelter density (SD), non-shelter density (NSD), and cohesion index (Ic). The results indicated that under both non-predator and simulated predator stimulation, the control groups of C. auratus, T. tinca, C. carpio, and S. sinensis exhibited relatively higher CD, NSD, and Ic values along with lower SD, whereas the control group of P. rabaudi showed relatively lower CD and NSD along with Ic higher SD and Ic values. The control group of A. fasciatus displayed relatively lower CD, SD, and Ic values but higher NSD. Regardless of predator stimulation, exercise training did not produce statistically significant effects on the collective behavioral characteristics of C. auratus, T. tinca, and C. carpio. Anaerobic exercise training led to an 81% significant decrease in NSD and a 21% significant increase in Ic values in P. rabaudi under non-predator stimulation (P<0.05); anaerobic exercise training resulted in a 39% significant increase in Ic values in A. fasciatus under simulated predator stimulation (P<0.05); aerobic exercise training caused a 17% significant decrease in Ic values in S. sinensis under non-predator stimulation (P<0.05). The study demonstrates that: (1) There are significant interspecific differences in the collective behavioral characteristics among the six cyprinid species, which may be related to their living habits and habitat factors; (2) Exercise training exerts varying degrees on collective behavioral characteristics by fish species and training regimen.

     

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