环境因子对4种江蓠生长的影响  

Effects of Environmental Factors on the Growth of Four Species of Gracilaria

作　　者：解修俊[1,2] 邝继鲜 陈世明 彭光[2] 王志远[1] 王广策[2] 

机构地区：[1]天津科技大学,海洋科学与工程学院,天津市海洋资源与化学重点实验室,天津300457 [2]中国科学院海洋研究所,山东青岛266071 [3]海南万州绿色藻业有限公司,海南海口570125

出　　处：《广西科学》2014年第6期596-599,605,共5页Guangxi Sciences

基　　金：海洋公益性行业科研专项经费项目(编号:201105008-2;201405040);国家自然科学基金面上项目(41106131)资助

摘　　要：【目的】为了更好的发展我国海南地区江蓠(Gracilaria)的人工栽培产业,考察4种不同江蓠品种在海南地区不同环境下的生长情况。【方法】比较采自广州南澳岛的脆江蓠(Gracilaria bursa?pastoris)和龙须菜(Gracilariopsis lemaneiformis)与海口当地的菊花江蓠(Gracilaria lichenoides)和细江蓠(Gracilaria tenuistipitata)在不同的盐度、温度、光照以及氮源条件下20d内的生物量变化情况。【结果】细江蓠和菊花江蓠能耐受盐度范围较宽,耐受高温能力强。脆江蓠和龙须菜对盐度的耐受范围较窄;在合适的盐度条件下,能在水温达30℃的条件下存活较长时间;添加硝酸钠能明显促进脆江蓠和龙须菜的生长。在合适的盐度条件下,脆江蓠的生长速度与当地的细江蓠相当。【结论】对脆江蓠进行良种培育与筛选,能获得适宜在海南进行推广栽培的优良江蓠藻种。Objective]We examined the growth of four species of Gracilaria in Hainan province under various conditions with the purpose of advancing the artificial cultivation ofGracilaria in this area.[Methods]Two species of Gracilaria were collected from Nan＆#39;ao isoland,Guangzhou, Guangdong Province,i.e.G.bursa-pastoris and G.lemaneiformis ,and another two species were collected from Haikou,Hainan Province,i.e.G.lichenoides and G.tenuistipitata .Effects of various salinities,temperatures,light intensities,and the nitrogen supplementation on the growth of the four species of Gracilaria were investigated.[Results]G.tenuistipitata and G.that G.bursa-pastoris could grow as fast as G.tenuistipitata in suitable salinity condition.[Conclusion]It is proposed that G.bursa-pastoris could be a potential species used for cultiva-tion in Hainan after further taming and selecting.

关 键 词：脆江蓠 龙须菜 细江蓠 菊花江蓠 环境因子 生长 

分 类 号：S967.9[农业科学—水产养殖]