坛紫菜北移研究  

NORTHWARD TRANSPLANTATION OF PORPHYRA HAIT AN EN SIS IN CHINA

作　　者：李世英[1] 郑宝福[1] 费修绠[1] 

机构地区：[1]中国科学院海洋研究所,青岛266071

出　　处：《海洋与湖沼》1992年第3期297-301,共5页Oceanologia Et Limnologia Sinica

基　　金：山东省水产局委托项目 课题号D5l 870629

摘　　要：于1985—1988年在青岛进行坛紫菜丝状体培养和叶状体栽培的北移研究。试验结果表明:在自然光温下,3月下旬采果孢子苗,投放密度为200个/cm^2。在丝状体培养期间,利用扩大育苗室的照光面积提高室温,池面加盖聚乙烯薄膜保温,使培苗池水温能达到25—28℃,以满足丝状体各个生长发育阶段要求的温度;利用减光、缩光方法促进丝状体发育。在8月初丝状体大量放散壳孢子,采壳孢子苗的适宜季节是8月上旬—9月中旬,这时采苗可以充分利用北方海区的水温条件,使叶状体能正常生长发育。35天后可采收第一水紫菜。Two kinds of problem should be solved to conduct a northward transplantation of Por-phyra haitanensis successfully to Qingdao region. (1) Large amount of conchospores should be released from cultured conchocelis in due time. (2) Enough products should be produced from field cultivation in a sufficient period of time. Through years of research from 1985-1988, we have solved these problems.1. Enlarging skylight areas of culture room to raise room temperature and covering plastic sheets on top of culture tanks to raise water tempsrature are the two useful ways which we applied to meet the heigher temperature needs for the normal developement and maturation for conchocelis of Porphyra haitanensis.2. Main culture conditions of conchocelis applied for this study were: Seeding period of car-pospores was in late March with the density of 200/cm2; Light control at the surface of culture tanks were: growth of filaments 2 500-5 000 1x, formation of sporangial branchlets 2 000-2 500 1x and formation of conchospores 1 000 1x. 3. The cultured conchocelis began to release conchospores in early August and spore-collectings were started from late August to mid September. The yield of a field cultivation, which started spore-collecting in mid September, yield 462.6g/m2 or 83.4kg/mu dried Porphyra within one cultivation season and this result may meet the needs of a commercial cultivation of Porphyra haitanensis in northern China.

关 键 词：紫菜 丝状体 叶状体 壳孢子 坛柴菜 

分 类 号：Q949.292[生物学—植物学]