广东紫菜和坛紫菜温度适应性的比较研究  

COMPARATIVE STUDY ON THE TEMPERATURE ADAPTABILITY OF PORPHYRA GUANGDONGENSIS AND P.HAIT ANENSIS

作　　者：王永川[1] 李刚[1] 潘国瑛[1] 黄良民[1] 

机构地区：[1]中国科学院南海海洋研究所

出　　处：《水产学报》1982年第4期307-312,共6页Journal of Fisheries of China

摘　　要：在本文中介绍了用瓦勃氏微量呼吸检压仪对同一海区养殖的广东紫菜和坛紫菜叶状体的暗呼吸强度及光合作用强度的测定结果;并对两种紫菜的单位产量作了比较。结果证明,广东紫菜比坛紫菜更适应于在我国南方水温较高的海区养殖。The cultivation of purple laver in Guangdong province was started in September,1966. The conchocelis of Porphyra haitanensis T. J. Chang et B. F. Zheng wereintroduced from Fujian province and their thallus were cultivated following spore-collecting. Guangdong province is situated in the subtropics region, the harvest scasonof P. haitanensis is very short and the yield is low. Since a well adaptable species isnecessary to select several species of purple lavers from different regions of Guangdongcoast were collected and cultivated in January, 1974. During the period of cultivationtill the spring of 1977 the experiment had shown that P. guangdongensis adapted tohigher temperature better than P. haitanensis. During Novermber, 1978 to January, 1979 some measurements of respirationwere made and the results had shown that the rates of O_2 consumption, CO_2 releasedand the respiratory quotients of P. haitanensis were much higher than those of P.guangdongensis at the same temperature. Especially at 25℃ the differences of the ratesof O_2 consumption and CO_2 releasing for both species were very significant(ρ<0.001). During December, 1979 to January, 1980 the rates of photosynthesis for bothspecies under different temperature were also measured. The experiment showed thatof P. guangdongensis at 30℃ (19.53μl O_2/mg d. w./h)and P. haitanensis at 23℃ (20μlO_2/mg d. w./h.) the rate of photosynthesis reached to maximum. While the raise ofwater temperature the rates of photosynthesis decreased. The ration of photosynthesis and respiration of P. guangdongensis were higherthan that of P. haitanensis within the temperature range of 25-33℃. The data fromindoor experiments agreed with the results of outdoor cultivation. P. guangdongensis is recognized to be better adapted to higher temperature and having faster growththan P. haitanensis.

关 键 词：坛紫菜 海区养殖 温度适应性 暗呼吸 菜叶 南方 叶状体 测定结果 广东 微量 

分 类 号：S968.431[农业科学—水产养殖] S965[农业科学—水产科学]