虾池常见微藻的光照强度、温度和盐度适应性

生态学杂志

虾池常见微藻的光照强度、温度和盐度适应性

李卓佳;梁伟峰^1，2;陈素文¹;文国樑¹;曹煜成¹

¹中国水产科学研究院南海水产研究所，广州 510300； ²广东海洋大学，广东湛江 524000

收稿日期:2007-06-01 修回日期:1900-01-01 出版日期:2008-03-10 发布日期:2008-03-10

Adaptability of common microalgae in shrimp ponds to light intensity, temperature and salinity.

LI Zhou-jia¹; LIANG Wei-feng^1,2; CHEN Su-wen¹; WEN Guo-liang¹; CAO Yu-cheng¹ 

¹South China Fisheries Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; ²Guangdong Ocean University, Zhanjiang 524000, Guangdong, China

Received:2007-06-01 Revised:1900-01-01 Online:2008-03-10 Published:2008-03-10

摘要/Abstract

摘要： 通过Smith生态位宽度指数和Pianka生态位重叠指数分析了虾池常见微藻种群（啮蚀隐藻、新月菱形藻、微绿球藻和蛋白核小球藻）在光照强度、温度和盐度资源上的生态位宽度和生态位重叠特征。结果表明：新月菱形藻和蛋白核小球藻具有较大的生态位宽度值,啮蚀隐藻和微绿球藻的生态位宽度值则相对较小。蛋白核小球藻和微绿球藻在光照强度、温度和盐度资源上的生态位重叠值均为最大，啮蚀隐藻在各资源与其他微藻的重叠值最小。新月菱形藻与蛋白核小球藻适应光照强度的范围较广。当水温达16.9 ℃，可定向培育新月菱形藻；当水温达25 ℃，可定向培育新月菱形藻和啮蚀隐藻；当水温达30 ℃时，可定向培育新月菱形藻、蛋白核小球藻和微绿球藻。养殖水体盐度处于9～26，可引入蛋白核小球藻与微绿球藻；处于9～17.5，应引入啮蚀隐藻；高盐水体，应引入新月菱形藻。蛋白核小球藻和微绿球藻在光照强度、温度和盐度资源上的生态位重叠值均为最大，因此微藻定向培育，不可同时引入蛋白核小球藻与微绿球藻。

关键词: 群落结构, 环境因素, 空间因素, 刈割, 放牧

Abstract: By using Smith’s and Pianka’s indices, this paper studied the niche breadths and overlaps of four common microalgae populations in shrimp ponds along radients of light intensity, temperature and salinity. The results showed that he niche breadth of Nitzschia closterium andChlorella pyrenoidosa was higher than that of Cryptomonas erosa and Nannichloropsis oculata.N. oculata and C. pyrenoidosahad the highest niche overlap in all different resources imensions, but C. erosa appeared with the lowest niche overlap, compared to other icroalgae in all the different resources dimensions. Nitzschia closterium and Chlorella pyrenoidosa grew well in wide range of light intensity. When the emperature reached 16.9 ℃ and 25 ℃, N. closterium and C. erosa would be breeding in the ponds, respectively. When the temperature reached 30 ℃, N. closterium, N. oculata and C. pyrenoidosa were suitable for breeding. N. oculata and C. pyrenoidosa were suitable for breeding in the ponds with a salinity anging from 9 to 26, Cryptomonas erosa was suitable with the salinity ranging from 9 to 17.5, while Nitzschia closterium was better with higher salinity. N. oculata and C. pyrenoidosa would not be breeding at the same time in the same ponds, because they have the highest overlap in all resources dimensions.

Key words: Community structure, Environmental factors, Spatial factors, Mowing, Grazing

李卓佳;梁伟峰;陈素文;文国樑;曹煜成 . 虾池常见微藻的光照强度、温度和盐度适应性[J]. 生态学杂志.

LI Zhou-jia¹; LIANG Wei-feng^1,2; CHEN Su-wen¹; WEN Guo-liang¹; CAO Yu-cheng¹ . Adaptability of common microalgae in shrimp ponds to light intensity, temperature and salinity. [J]. cje.

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