1Study on Regularities and Prediction of Dynamic Variations in the Yellow River Delta CoastlineYUAN Xi-long, SUN Fang-lin, DONG Hong1-102Analysis and Computation of Tidal Level and Wave for the Yantai Yudaishan Fishery Wharf ProjectQIN Shi-jie, SUI Jian-guo11-173An Experimental Study on Shoaling Effect on Infragravity WavesYANG Yu-di, LIU Xi-nan18-264Advances and Prospects in Study on Siltation Promotion and Erosion Control Techniques for Beach SedimentsLI Yan-hong, CHEN Qin-qin, YU Guo-liang27-345Strengthening the Development and Protection of Seabed Mineral ResourcesWANG Yong-zhi, LIU Hong-bin, BAO Xian-wen35-416Investigation and Assessment of Aquicultural Environment in the Fenghuang Lake42-487Present Situation, Hazards and Prevention and Control Measures of Marine Invasive Alien Species into ChinaLIU Fang-ming, MIAO Jin-lai, ZHENG Zhou, WANG Yi-bin49-578Abundance Distributions of Sulfate-reducing Bacteria in Surface Sediments From the Middle Waters of Bohai SeaHUANG Feng-peng, HUANG Jing-zhou, YANG Yu-ling, SONG Qing-yun58-619Similarity Conditions to Set Model Sands for Marine Mobile Bed Physical Model ExperimentLIU Zi-li, JI Yu-qiang, YU Kai-ben, LIU Xue-hai, MA Xiao-bing62-6710Study on Concrete Durability Design Scheme for Qingdao Trans-bay BridgeZHOU Chang-yan, DONG Feng, ZHANG Xiu-ting68-7111Valuation of Recreational Beach Resources——Taking the Qingdao Bathing Beaches as an ExampleLIU Kang72-80