文章摘要
卢静.对虾池的放养密度对浮游生物群落的影响[J].水产学报,2000,24(3):
对虾池的放养密度对浮游生物群落的影响
The impact of stocking density on plankton community in shrimp pond
投稿时间:2014-04-16  修订日期:2014-04-16
DOI:
中文关键词: 浮游生物 放养密度 陆基围隔 虾池生态系统
英文关键词: shrimp pond  plankton  stocking density  land..based enclosure
基金项目:国家自然科学基金重点项目(39430150) ; 国家.. 九五.. 攻关专题( 96- 922- 02- 02)
作者单位地址
卢静 青岛海洋大学水产学院 青岛海洋大学水产学院
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中文摘要:
      于1998年7 ̄9月在山东海阳养虾场运用陆基围隔实验生态学方法,研究了对虾与罗非鱼在五种放养密度下浮游生物群落的变动情况。结果表明;可能浮游动物的摄食对浮游植物产生影响,二者数量的消长在大多数围隔都呈负相关;纤毛虫的数量与浮游植物的总生物量呈负相关;随着养殖密度的增加,浮游植物生物量减少,而浮游动物却有所增加,前者的优势类群由硅藻变为甲藻、蓝藻和隐藻。后者的在组成中镖水蚤数量减少而剑水蚤、无节幼体、轮虫和原生动物等小型种类有所增加;纤毛虫在高密度围隔中大量繁殖,说明水质已逐渐恶化。
英文摘要:
      This paper deals w ith the variations of plankton communities in enclosures in which shrimp and tilapia were stocked in f ive densit ies: 2. 8 ind..m- 2, 5. 6 ind..m- 2, 8. 4 ind..m- 2, 11. 2 ind..m- 2, 14. 0 ind..m- 2. The study was conducted in a shrimp farming pond from July to September, 1998 w ith the enclosure - experimental method. The following result s were obtained: ( 1) Because zooplankton feed on phytoplankton, their quantities were in negative correlation in the most enclosures; ( 2) The total biomass of ciliates showed no signif icant correlation with the biomass of zooplankton, but showed negative correlat ion with the biomass of phytoplankton; ( 3) The biomass of phytoplankton was decreased and the saprophilous forms of Pyrrophyta, Crytophyta, Cyanophyta instead of Bacillariophyta and Chrysophyta became dominant group in the enclosures w ith higher shrimp, but zooplankton.. s biomass was increased, supported by the smaller ones; ( 4) Ciliates breed abundantly in higher stocking enclosure, which showed the quality of water becoming bad.
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