深远海养殖鲑鳟鱼类对典型环境胁迫的响应及其机制研究

海水增养殖需要积极拓展养殖空间，养殖活动要从近岸向离岸特别是向深远海拓展。本项目以发展深远海鲑鳟鱼类养殖为目标，拟在养殖关键阶段（入海“窗口期”和海域养殖阶段）系统研究备选鲑鳟鱼类在行为、生理和肠道微生物组成上对温度、盐度和溶解氧等环境因子的响应，查明养殖鱼类在行为和生理上对环境因子的适应策略；整合环境和生物学数据，建立高清晰度的生理生态模型，以评估鲑鳟鱼类养殖区质量，确定适宜养殖区范围。研究成果将服务于黄海冷水团鲑鳟鱼类养殖的可持续发展，并为深远海养殖空间的拓展提供理论框架和技术支撑。

Offshore mariculture is one of the most important directions for sustainable development of the Chinese aquaculture in marine waters. In the present project, we aim: (1) to investigate the behavioral and physiological responses of selected salmon and trout (Salmo salar, Oncorhynchus mykiss and O. mykiss irideus) to thermal stress, osmotic stress and hypoxia, and the gut microbiota composition in different conditions in the key stages during fish aquaculture for clarifying the tolerance and adaptation of the target species to environment changes; (2) to build high resolution physiology-based species distribution models (Aerobic Scope Models, ASM and Dynamic Energy Budget models DEB) for characterizing fish habitat suitability, selecting suitable offshore fish aquaculture area and developing aquaculture equipment. This project will be important for the site selection of offshore mariculture of salmon and trout in the Yellow Sea Cold Water Mass and also be critical for the sustainable development of the offshore mariculture world-widely.