Leong-Seng Lim , Chee-Wei Yee , Kian Ann Tan , Hon Jung Liew , Yukinori Mukai
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引用次数: 0
摘要
本研究旨在确定大理石虾虎鱼(Oxyeleotris marmorata)幼虫的感官,以促进猎物的检测。研究了在光照和黑暗条件下(鱼类视觉受阻),切除完整或游离神经杆(机械感受器)的marmorata幼虫(喂食前用链霉素处理11mg/L)对活的(产生化学和机械刺激)或冷冻的(产生化学但不产生机械刺激)的摄食比例。视觉、机械和化学感受器都被发现是察觉猎物的关键。饵料运动作为视觉刺激对黑斑叶蛾幼虫的摄食有显著影响,光照条件下,以活饲料(78.1±1.5%)摄食的黑斑叶蛾幼虫摄食率比冷冻饲料(40.9±2.8%)摄食的黑斑叶蛾幼虫摄食率高约40% (p = 0.001, d = 3.0)。在光照和黑暗条件下,完整的麻叶蒿幼虫对冰冻后的鹦鹉耳蒿的摄食比例无显著差异(p = 0.572, d = 0.2),这一结果得到了证实。这些研究结果表明,多模态感官促进了黑纹夜蛾幼虫对猎物的探测,使黑纹夜蛾幼虫能够在其自然栖息地生存。
Sensory-mediated feeding behaviour in the larvae of marble goby (Oxyeleotris marmorata)
This study was conducted to determine the senses that facilitate prey detection in the marble goby (Oxyeleotris marmorata) larvae. The ingestion ratios of live (generate chemical and mechanical stimuli) or frozen Artemia nauplii (generate chemical but no mechanical stimuli) by the intact or free neuromast (mechanoreceptor)-ablated O. marmorata larvae (11 mg/L streptomycin treatment before feeding) under the light or dark (fish vision was obstructed) condition were examined. Vision, mechano-, and chemoreceptions were all found to be essential in prey detection of the O. marmorata larvae. Prey movement has a significant influence as a visual stimuli on the O. marmorata larval feeding as the Artemia nauplii ingestion ratio was approximately 40% higher with significant (p = 0.001, d = 3.0), when the intact larvae were fed with the live (78.1 ± 1.5%), rather than the frozen (40.9 ± 2.8%) Artemia nauplii, under the light condition. This result was assured when no significant difference (p = 0.572, d = 0.2) was found between the ingestion ratios of frozen Artemia nauplii by the intact O. marmorata larvae under light and dark conditions. These findings demonstrate that prey detection in the O. marmorata larvae was facilitated by multi-modal senses, allowing O. marmorata larvae to survive in their natural habitats.
期刊介绍:
Behavioural Processes is dedicated to the publication of high-quality original research on animal behaviour from any theoretical perspective. It welcomes contributions that consider animal behaviour from behavioural analytic, cognitive, ethological, ecological and evolutionary points of view. This list is not intended to be exhaustive, and papers that integrate theory and methodology across disciplines are particularly welcome.