天津农学院学报 ›› 2020, Vol. 27 ›› Issue (1): 37-43.doi: 10.19640/j.cnki.jtau.2020.01.009

• 研究与简报 • 上一篇    下一篇

鲤(Cyprinus carpio)对稻田水体浮游植物及环境因子的影响研究

彭辉辉1,2, 张凯2, 陈成勋1, 谢骏2, 李志斐2, 郁二蒙1,2, 刘龙飞1, 龚望宝2, 田晶晶2,王广军1,2,3,通信作者   

  1. 1. 天津农学院 水产学院,天津 300384;
    2. 中国水产科学研究院 珠江水产研究所 农业农村部热带亚热带水产资源利用与养殖重点实验室,广州 510380;
    3. 广东省水产养殖污染修复生态工程技术研究中心,广州 510380
  • 收稿日期:2019-04-17 发布日期:2020-04-01
  • 通讯作者: 王广军(1973-),男,研究员,硕士,研究方向:水产动物营养及水环境调控。E-mail:wgj5810@163.com。
  • 作者简介:彭辉辉(1995-),男,硕士在读,研究方向:水产养殖。E-mail:757739105@qq.com。
  • 基金资助:
    广东省海洋和渔业发展专项资金(技术推广)项目(2017A0011); 广东省海洋渔业科技攻关与研发项目(A201701B05); 中国水产科学研究院基本科研业务费专项(2016HYZD0703); 中国水产科学研究院基本科研业务费(2019XT0501); 国家大宗淡水鱼产业技术体系(CARS-45-21); 广东省省级科技计划项目(2017B090906002)

Effects of carp(Cyprinus carpio)on phytoplankton and environmental factors in paddy fields

PENG Hui-hui1,2, ZHANG Kai2, CHEN Cheng-xun1, XIE Jun2, LI Zhi-fei2, YU Er-meng1,2, LIU Long-fei1, GONG Wang-bao2, TIAN Jing-jing2, WANG Guang-jun1,2,3,Corresponding Author   

  1. 1. College of Fisheries, Tianjin Agricultural University, Tianjin 300384, China;
    2. Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Ministry of Agriculture and Rural Affairs, Guangzhou 510380, China;
    3. Guangdong Ecological Remediation of Aquaculture Pollution Research Center, Guangzhou 510380, China
  • Received:2019-04-17 Published:2020-04-01

摘要: 为探究放养鲤(Cyprinus carpio)对稻田水体浮游植物群落结构和水质的影响,对试验组(稻鲤)和对照组(单种稻)的浮游植物和环境因子进行了试验分析。结果表明:试验组共鉴定出浮游植物7门18种,对照组鉴定出5门24种,试验组的浮游植物密度和生物量均显著高于对照组(P<0.05);试验组优势种11种,集中于绿藻门和硅藻门,对照组优势种13种,集中于蓝藻门和硅藻门;Shannon-Weiner多样性指数和Marglef指数分析表明,稻鲤模式浮游植物多样性低于单种稻模式;试验组水体的氨氮、亚硝酸盐与对照组无显著差异(P>0.05),但硝酸盐、总氮、COD显著低于对照组(P<0.05)。研究表明,稻田养鲤可改善稻田水体浮游植物群落结构和水质。

关键词: 稻田养鱼, 鲤, 浮游植物, 环境因子

Abstract: In order to study the effect of carp(Cyprinus carpio)on the phytoplankton community structure and water quality in paddy field, the phytoplankton and environment factors of trial group(rice-carp coculture)and control group(rice-monoculture)were studied. The results showed that there were 18 species belonged to 7 phylums in the trial group and 24 species belonged to 5 phylums in the control group, and the density and biomass of phytoplankton in the trial group were significantly higher than those in the control group(P<0.05). There were 11 dominant species in the trial group, concentrated in Chlorophyta and Bacillariophyta, and 13 dominant species in the control group, concentrated in Cyanophyta and Bacillariophyta. The indexes of Shannon-Weiner and Margalef indicated that the phytoplankton diversity of the rice-carp-coculture mode was lower than that of rice-monoculture mode(P<0.05). There was no significant difference in ammonia nitrogen and nitrite between the trial group and the control group(P>0.05), but the nitrate, total nitrogen of water(WTN)and COD was significantly lower than those of the control group(P<0.05). The results showed that the phytoplankton community structure and water quality of paddy fields had been improved after the addition of carp.

Key words: paddy fields, Cyprinus carpio, phytoplankton, environmental factors

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