论文部分内容阅读
虾夷扇贝(Pecten yessoensis)属冷水性海产贝类,其生长最适水温为5—20℃,正常活动的温度上限为23℃,下限为0℃,主要产于日本北部沿岸及朝鲜北部日本海侧,为日本第二大养殖贝类。日本自六十年代中期开展人工养殖以来,扇贝产量迅速上升,从1967年的8000多吨上升至1980年的12—13万吨,占世界扇贝年产量的1/4左右,其中养殖产量约占总产量的2/3。 近年来,我国在发展栉孔扇贝(Chlamys for reri)人工增养殖的同时,辽宁和山东两省又先后从日本引进虾夷扇贝苗种和成贝,进行了采卵、育苗和
Pecten yessoensis is a cold-water marine shellfish whose growth optimum temperature is 5-20 ℃, normal activity temperature is 23 ℃, and the lower limit is 0 ℃. It is mainly produced in the northern coast of Japan and the northern sea of Japan Side, Japan’s second-largest cultured shellfish. Since Japan started artificial breeding in the mid-1960s, the output of scallops has rapidly risen from 8,000 tons in 1967 to 1,230,000 tons in 1980, accounting for about 1/4 of the annual output of the world’s scallops, of which the production of farms accounts for about 2/3 of the total output In recent years, while developing the artificial breeding of Chlamys for reri in our country, Liaoning and Shandong provinces introduced the Japanese shrimp and scallop seed and shellfish successively,