刺参是我国重要的海水养殖对象，休眠和繁殖是刺参生活史中的关键环节，但对其前后和过程中摄食行为与消化生理的变动特征和适应策略的研究相对薄弱，而工厂化养殖投喂策略制定、浅海增养殖设施及诱捕装置研发有赖于摄食行为特征的支撑。项目将在已结题青年基金的基础上，聚焦刺参摄食行为与消化生理之间的协同模式、刺参摄食行为特征在生活史关键阶段的适应策略两个关键科学问题，综合应用水生生物行为学研究平台和标记监测技术，研究刺参在休眠和繁殖前后的触手运动、摄食节律等行为变动特征，查明摄食行为与休眠时间、配子产生等相关关系；研究刺参消化酶、内分泌等变动特征，揭示刺参摄食与消化生理之间的协同模式；研究刺参个体摄食行为与群体运动、竞争、繁殖行为之间的相互关系，系统阐明刺参摄食行为特征及其在休眠和繁殖等生活史关键阶段的适应策略，为刺参投喂策略的制定和增养殖设施及诱捕装置的研发提供理论依据。

Apostichopus japonicus is an important species of mariculture in China. Dormancy and reproduction is the key points in the life cycle of A. japonicus, but the changing characteristics and adaptive strategies of feeding behavior and digestive physiology during these periods are poorly studied. Feeding strategy in industrial aquaculture, and developments of aquaculture and harvesting facilities in shallow sea depend on the surport of feeding behavior characteristic. Based on the youth fund, the project will focus on the synergy pattern of feeding behavior and digestive physiology, and the adaptive strategy of feeding behavior in the key phases of A.japonicus’ life cycle. With the integrated application of aquatic organism behavioral research platform and tagging and monitoring techniques, the tentacles movement and feeding rhythm before and after dormancy and reproduction are studied, and the relationship between feeding behavior and dormancy time and gametogenesis is clarified. The variations of digestive enzymes and endocrines are studied, and the synergy pattern of feeding and digestive physiology is revealed. The mutual relationships between individual feeding behavior and group movement, competition and reproduction behavior are studied. The feeding behavior and its adaptive strategy in the key phases of dormancy and reproduction of A. japonicus are systematically clarified, and the feeding behavior and survival strategy is revealed. The above results will support the formulating of feeding strategy and developments of aquaculture and harvesting facilities of A. japonicus.