广西科学2012，Vol.19Issue(2)：160-164,5.
广西北海凡纳滨对虾养殖池塘叶绿素a和微藻的变化研究
Variation of Chlorophyll a Concentration and Microalgae Composition in Litopenaeus vannamei Culture Ponds in Beihai, Guangxi
摘要
Abstract
Variation of chlorophyll a (Chl. A) concentration and microalgae composition was studied in 3 culture ponds of Litopenaeus vannamei in Beihai City. The results indicated that there was a distinct change of Chi. A concentration during the culture period. In the early stage, Chl. A concentration was lower than 10. 0μg/L, then it increased rapidly and reached about 150. 0μg/L in the late stage. Similar to Chl. A concentration,cell density of microalgae was lower than 20 × 106cells/L in the early stage and higher than 100 × 106 cells/L in the late stage. On the contrary,diversity index and evenness of microalgae were high in the early stage and low in the late stage. The diversity index fluctuated from 0. 98 to 3. 15,and the eveness index from 0. 28 to 0. 82. There were more microalgae species in the early stage than that in the late stage. In the early stage,the dominant species belonged to Bacillariophyta and Chlorophyta , and that belonged to Chlorophyta ,Cyanophyta and Pyrophyta in the late stage. There were some little differences on the variation of Chl. A concentration and microalgae composition in the three culture ponds.关键词
凡纳滨对虾/叶绿素a/微藻/优势种/养殖池塘Key words
Litopenaeus vannamei/ chlorophyll a/ microalgae/ dominant species/ culture pond分类
农业科技引用本文复制引用
廖思明,陈剑锋,阎冰,吴斌,兰国宝..广西北海凡纳滨对虾养殖池塘叶绿素a和微藻的变化研究[J].广西科学,2012,19(2):160-164,5.基金项目
广西自然科学基金项目(桂科青0542023),北海市科技攻关项目(200502045),广西科技攻关项目(桂科攻0719005-2-2C)资助. （桂科青0542023）
