Abstract: This study aimed to tackle the key challenges in offshore aquaculture, including insufficient safety assurance and incomplete technical and procedural systems, and to verify the feasibility and effectiveness of high-density farming technology for Large Yellow Croaker (Larimichthys crocea) using an aquaculture on board mode. A three-month farming experiment (from July 9 to October 24, 2025) was designed, utilizing the self-developed "Yuji No.1" towable, closed aquaculture mobile farming platform as the core experimental facility. The experimental tank provided an effective water volume of about 900 m³, stocked initially with Larimichthys crocea averaging 311.60±68.56 g in weight, at a density of 15.37 kg/m³. Standardized farming operation procedures were implemented through the platform's integrated systems, including fish-friendly flow field regulation, automatic dissolved oxygen feedback, intelligent lighting, and vision-based feeding. Water quality parameters (e.g., temperature, dissolved oxygen, ammonia nitrogen) and fish behavior were monitored, and fish growth performance and health status were measured periodically. During the experiment, the aquaculture water environment remained stable, with key environmental factors (flow velocity 0.5-1 bl/s, dissolved oxygen 8-10 mg/L) within the suitable range for Larimichthys crocea. At the end of the experiment, the average weight of the fish reached 675.82 g, with an average monthly weight gain of 104.1 g, a cumulative survival rate of 95.05%, and the farming density increased to 31.65 kg/m³. The feed conversion ratio was 1.15-1.31. The fish maintained a stable health status, with no large-scale disease outbreaks occurring. This research verifies that the aquaculture on board system and its supporting technologies can achieve high-density, high-efficiency, and high-survival-rate farming of Larimichthys crocea, providing reliable technical support and an engineering demonstration for the promotion and application of industrialized offshore aquaculture models. 

Key words:  , aquaculture on board, large yellow croaker (Larimichthys crocea), high-density culture, aquaculture technology, offshore, industrialized aquaculture

摘要： 为解决深远海养殖面临的安全保障不足、技术与工艺体系不完善等关键技术瓶颈问题，验证船载舱养模式在高密度条件下养殖大黄鱼的可行性及工艺有效性。以自主研发的“渔机1号”拖航式封闭舱养移动平台为核心试验设施，设计为期3个月（2025年7月9日至10月24日）的养殖试验。试验舱有效水体约900 m³，初始放养均质量(311.60±68.56)g的大黄鱼，密度为15.37 kg/m³。通过平台集成的适渔性流场调控、溶氧自动反馈、智能光照、基于视觉反馈的投饲等系统，执行标准化养殖操作规程，监测水体环境（水温、溶氧、氨氮等）与鱼类行为，并定期测定鱼体生长性能与健康状况。试验期间，养殖水体环境稳定，关键环境因子（流速0.5~1bl/s，溶氧8~10 mg/L）处于大黄鱼适宜范围。试验终末，大黄鱼均质量达675.82 g，月均增质量104.1 g，累计存活率95.05%，养殖密度提升至31.65 kg/m³，饲料系数为1.15-1.31。鱼体健康状态稳定，未发生大规模病害。本研究验证了船载舱养系统及其配套工艺可实现大黄鱼的高密度、高效率、高存活率养殖，为深远海工业化养殖模式的推广应用提供了可靠的技术支撑与工程示范。 

关键词: 船载舱养, 大黄鱼, 高密度养殖, 养殖工艺, 深远海, 工业化养殖