The research direction is mainly engaged in the research of fishing gear and fishery law (fishing method selectivity of fishing gear). Lectures include hydraulics and fishing selectivity of pumps and fishing tackle I (Master). Paper published [1] Sun Mancang, Zhang Jian, Study on the Minimum Mesh Size of Shrimp Trawl in Lvsi Fishing Ground [J]. Marine Fisheries, 2002,24 (3):120-124. Sun Mancang, Ye Xuchang, Zhang Jian, et al. Analysis of Pacific saury fishery [J]. Marine Fisheries, 2003,25 (3):112-. Qian Weiguo. Comparison between hydrodynamic model test and theoretical calculation of flying saucer-shaped cage [J]. Journal of Shanghai Fisheries University, 2003, 12 (4): 3 19-323. [4] Sun Mancang, Zhang Jian, Qian Weiguo, et al. Discussion on the differences between nets in the study of fishing gear selectivity [J]. Jimei 8(4):322-328. [5] Xia Taichun, Zhang Jian. Estimation of resistance of double cone cage in deep water [J]. Journal of Shanghai Fisheries University, 2003,12 (1): 87-91. [6] Qian Weiguo. 25(6):35-4 1.[7] Sun Mancang, Zhang Jian, Qian Weiguo. The influence of netting method on the selectivity of netting gear [J]. journal of fisheries of china, China, 2004,28 (6): 709-715. [8] Zhang Jian, Sun Mancang. 2004, 13(4):328-334.[9] Zhang Jian, Sun Mancang, Qian Weiguo, et al. Discussion on fishing gear selectivity model in Zhang Wang [J]. Marine Fisheries, 2004,24 (2):1-8. 【 65438 】 Sun Mancang. Application of geometric similarity principle in mesh selectivity of filtering fishing gear [J]. China Fisheries Science, 2005, 12 (3): 3 14-320. [12] Zhang Jian, Sun Mancang. Research progress on selectivity of gill net fishing gear [J]. China Fisheries Science. 13 (6):1040-1048. [13] Luo Yanbiao, Zhang Jian, Sun Mancang. Effect analysis of shrimp trawl catch separation experiment in Dapeng Bay [J]. Southern Fisheries, 2007,3 (65438+) Sun Manchang. Preliminary study on the device of reducing jellyfish catch with net [J]. Marine Fisheries, 2007,29 (1):1-7. Song, Hong Dunping, Zhang Jian, et al. Design Practice of Propeller for Twin-engine and Twin-propeller Ship [J].36(4):46-48. Song, Xia Taichun, Zhang Jian, et al. Study on Optimal Configuration of Fishing Vessel Power Unit [J]. Shipbuilding Technology, 2007, (1):/kloc- Wait a minute. Software system for propeller design of fishing boats [J]. Shipbuilding Engineering, 2007,29 (1): 49-52. [18] Zhang Jian, Sun Mancang, Luo Yanbiao. Study on mesh selectivity of shrimp trawl in Dapeng Bay, Guangdong [J]. Marine Fisheries, 2007,29 (2):166-173. [19] Zhang Jian, Sun Mancang. Research progress of selective shrimp trawl gear in Europe [J]. Journal of Dalian Fisheries University, 2008,23 (01): 55-62. Sun mancang Study on selectivity of truss trawl to main fish [J]. Journal of Shanghai Fisheries University, 2008, 17 (4): 457-463. [2 1] Zhang Jian, Sun Mancang. Selectivity of truss trawl to shrimp catching with different mesh structures [J]. China Fisheries Science. 15(4):667-676.[22] Zhang Jian, Sun Mancang, Peng, et al. The separation efficiency of truss trawl for prawns [J]. China Fisheries Science, 2008, 15 (5): 845-852. [22] [J]。 Journal of Shanghai Fisheries University, 2008, 17(6):726-733. [24] Zhang Jian, Sun Mancang, Ye Xuchang, et al. Separation efficiency of truss trawl net for fish [J]. Journal of Dalian Fisheries University, 2000 Zhang Jian, Zhou, et al. Discussion on jellyfish processing methods [J]. Marine Fisheries, 2009,31(1) [26] Zhang Jian, Sun Mancang. Selection of mesh size of control net in selectivity study of multi-bag truss trawl [J]. China Fisheries Journal, China. Sun mancang Study on separation efficiency model of truss trawl separator [J]. journal of fisheries of china, China, 2009,33 (4): 697-703. Zhang Jian, Zhang Peng, Sun Manchang, et al. Study on the separation efficiency of truss trawl with rigid fence [J]. Journal of Ocean and Lakes, 2009,40 (4): 51-517. Editor-in-chief, tutorial [1] Fishing selectivity of fishing tackle. Beijing China Agricultural Press 2004. (Deputy Editor-in-Chief) [2] Marine fishery technology. Beijing: China Agricultural Publishing House, 2006. (Participation) [3] Fishing gear material technology. Beijing China Agricultural Press 2009. (Participation) Presided over and participated in the project [1] Shanghai Key Discipline (Fisheries) Construction Project Open Fund "Study on trawl gear selectivity in the East China Sea offshore" from 2005 to 2008; [2] "Research on Friendly Fishing Gear in the East China Sea Offshore", a sub-project of the Eleventh Five-Year Science and Technology Support Plan, 2006BAD09A05, 2006-2010; [3] The Open Fund of the Key Open Laboratory of Fishery Eco-environment of the Ministry of Agriculture, Study on the Fish Selectivity of Fishing Gear in the Far Sea Net (2008+0-2009+02); [4]2005-2008 doctoral research fund of the Ministry of Education "Research on the Optimization of Shrimp Trawling Performance" (participation); [5] Key Project of Shanghai Science and Technology Commission "Research on Key Technologies of Large Tuna purse seine" 2008-20 10 (participation);

Patent [1] applied for and authorized [2] Xiajellyfish net separation device, Xiajellyfish mechanical processing device [3] truss trawl net fish and shrimp separation device.