摘要
羊栖菜马尾藻在不同水温、光强下，光合作用各有其明显的规律性，有适宜的水温和光强范围。光合作用的适宜水温约为１５－２５℃，而以２０℃为最适水温。光饱和产争光合速度随水温２０，１５，２５，１０℃依次降低。根据测定结果，本文对其在羊栖菜马尾藻生产上的合理应用，促使养殖技术和产量的提高，进行了探讨。
This paper presets the results of the photosynthesis of Sargassum fusiforme in different water temperature and light intensity. Sargassum fusiforme are macro economic brown alga adapting themselves to a wide range of temperature and strong light, they can be cultured simply or mixed With Laminaria. The effecs of water temperature and light intensity on the photosynthesis of Sargassum fusiforme have certain pattems.The water temperatures between 10 ~ 25℃ were all good for the photsynthesis of Sargassum fusiforme, of which the temperatures approximately between 15 ~ 25℃ were suitable for the photosynthesis, and the optimum Was 20℃, which may be fiuctuated within the range of 18 ~ 22℃ The ne photosynthsis vilocities of satuhaon light intensity decreased, when the water temperatures were 20, 15, 25, 10℃.Within the light saturation intensity, the suitable and optimum lights for the photosynthesis of Sargassum fusiforme were betwee (0.4 ~ 3.0) x 104 1x and betwee (1 ~ 3) x 10 1x respetively,however 3 x 104 1x was the light saturation intensity, and beyond the ligh saturation intensity corresponding to the net photsynthesis de of both the suhabl and optimum lights Which can reach more than 4 x 104 1x.When the photsynthesis vilocities increased, the respirating vilocities were also relatively higher,the respirating vilocities would be positively related to the water temperatures, at the water temperatures of 10, 15, 20 and 25℃, the averegr respiratory rates of Sargassum fusiforme in different light intensities were 23. 6%, 31. 1%, 43. 8%, and 57. 9% of their light saturation net photosynthesis rates respectively.According to the above result and in combination with the law of Sargassum fusiforme growing: at the seedling stage, vegetative growing stage and sexual reproduction stage, scientific application of the above result will surely promote the cuituring technique and output to a new high level.
出处
《水产学报》
CAS
CSCD
北大核心
1997年第2期165-170,共6页
Journal of Fisheries of China
关键词
羊栖菜
马尾藻
水温
光强
光合作用
Sargassum fusiforme, Water temperature, Light intensity, Photosynthesis
