温度与盐度对刺松藻生长和营养盐吸收的影响  

Effects of Temperature and Salinity on Growth and Nutrient Absorption of Codium fragile Hariot

作　　者：魏丽媛 郑怡[1] WEI Liyuan;ZHENG Yi(College of Life Sciences,Fujian Normal University,Fuzhou 350117,China;Datong Coal Mine No.2 Middle School,Shanxi Datong 140214,China)

机构地区：[1]福建师范大学生命科学学院,福州350117 [2]山西同煤二中,山西大同140214

出　　处：《生物技术进展》2021年第2期190-195,共6页Current Biotechnology

基　　金：福建省高校产学合作项目(2015N5004)。

摘　　要：随着养殖业迅猛发展,海洋富营养化问题日益加剧。利用大型海藻所具有的超吸收氮磷营养盐的能力,可有效治理和修复富营养化海域。从福建省连江县罗源湾海域养殖筏架采取经济价值较高的刺松藻,为分析其在海水养殖区的生长条件,在实验室条件下,研究温度(18、25、32℃)和盐度(10、20、30)对刺松藻生长和营养盐吸收的影响。研究结果表明,刺松藻生长受温度影响极显著(P<0.01),受盐度及二者相互作用影响显著(P<0.05);在25℃和盐度20的条件下,刺松藻特定生长率(specific growth rate,SGR)最高,达89.45%;在32℃和盐度30的条件下,刺松藻对营养盐的吸收效果最好,其中对NH+4-N的吸收效果最佳。研究结果为生物修复种群的选择和刺松藻的人工养殖提供了一定的参考。With the rapid development of aquaculture,the problem of marine eutrophication is increasing.Macroalgae can effectively control and repair the eutrophic sea area by utilizing its super-absorption ability of nitrogen and phosphorus nutrients.In order to analyze the growth conditions of Codium fragile Hariot in mariculture areas,which has high economic value,taken from the raft in Luoyuan Bay,Lianjiang County,Fujian Province,the effects of temperature(18,25 and 32℃)and salinity(10,20 and 30)on the growth and nutrient absorption of Codium fragile Hariot were studied under laboratory conditions.The results showed that the growth of Codium fragile Hariot was significantly affected by temperature(P<0.01),salinity and their interaction(P<0.05).Under the conditions of 25℃and salinity 20,the specific growth rate(SGR)of Codium fragile Hariot was the highest,reaching 89.45%.Under the conditions of 32℃and salinity 30,the absorption of nutrients by Codium fragile Hariot was the best,especially for NH+4-N.The research results provided some references for the selection of bioremediation population and the artificial culture of Codium fragile Hariot.

关 键 词：刺松藻 温度 盐度 生长率 营养盐吸收 

分 类 号：Q949.2[生物学—植物学] Q945