筏式养殖贝类排泄物对水质的污染吴耀泉（中国科学院海洋研究所，青岛２６６０７１）贻贝、扇贝和牡蛎等贝类是浅海筏式养殖的主要对象，其中扇贝养殖发展最快。随着筏式养殖面积的盲目扩大和养殖密度的过高，出现了养殖区水体得不到充分交换、港湾浅海水质恶化的现象。而... Scattering of Water Quality by Raft Cultured Shellfish Waste WU Yao-Quan (Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071) Shellfish such as mussels, scallops and oysters are the main objects of shallow-sea raft culture, of which scallop is the fastest growing. With the blind expansion of the area of ​​raft culture and the excessive breeding density, there is a phenomenon that the water body in the breeding area can not be fully exchanged and the water quality of the shallow sea in the harbor deteriorates. and...