罗非鱼对附着藻类和浮游植物的影响

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (459 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract

Fish can affect the water ecosystem by grazing and nutrient excretion, and omnivorous fish may feed in different habitats and thus change coupling between habitats. Tilapia (Oreochromis niloticus) is the dominant species in most lakes of South China, and its food includes phytoplankton in open water habitats and periphyton in substrate-surface habitats. In order to reveal the effects of tilapia on phytoplankton and periphyton, an experiment with two treatments, one with tilapia (tilapia group) and one without tilapia (non-fish group) was carried out, and the biomass (Chl a) of both phytoplankton and periphyton was analyzed. The results showed that tilapia significantly reduced the biomass of periphyton. The mean values of Chl a of periphyton in tilapia group was 0.15 mg·cm^-2, which was significantly lower than that of non-fish group with a value of 1.26 mg·cm^-2. The mean value of phytoplankton Chl a in tilapia group was 31.99μg·L^-1, significantly higher than that of non-fish group having a value of 14.99μg·L^-1. The results suggest that omnivorous tilapia can promote periphyton shifting to phytoplankton. In order to control phytoplankton biomass while managing a lake, density of tilapia should be effectively controlled.

Key words： tilapia periphyton water quality phytoplankton

Received: 25 April 2010

O178.51+3

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YAO Jie
	LIU Zheng-wen

Cite this article:

YAO Jie,LIU Zheng-wen. Effects of tilapia on periphyton and phytoplankton[J]. , 2010, 29(2): 147-151.

URL:

http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2010/V29/I2/147

[1] 陈素芝, 叶卫.我国引进的罗非鱼类的初步研究[J].动物学杂志, 1994.29(3):18-23.
[2] 阮景荣, 戎克文, 王少梅, 等.罗非鱼对微型生态系统浮游生物群落和初级生产力的影响[J].应用生态学报卷, 1993.4(1):65-73.
[3] Starling F, Lazzaro X, Cavalcanti C, et al.Contribution of omnivorous tilapia to eutrophication of a shall6w tropical reservoir:evidence from a fish kill[J].Freshwater Biology, 2002, 47:2443-2452.
[4] Figueredo C C, Giani A.Ecological interactions between Nile tilapia(Oreochromis niloticus, L.)and the phytoplanktonic community of the Furnas Reservoir(Brazil)[J].Freshwater Biology, 2005.50:1391-1403.
[5] 刘辉.谢逸发.张修锋, 等.罗非鱼对水质的影响[J].生态科学, 2008, 27(6):494-498.
[6] Schaus, M H, Vanni M J.Effects of gizzard shad on phytoplankton and nutrient dynamics:role of sediment feeding and fish size[J].Ecology, 2000, 81(6):1701-1719.
[7] Vanni, M J.Nutrient cycling by animals in freshwater ecosystems[J].Annual Review of Ecology and Systernatics, 2002.33:341-370.
[8] Schindler, D E, Scheuerell, M D.Habitat coupling in lake ecosystems[J].Oikos, 2002, 98(22):177-189.
[9] Vanni, M J, Bowling, A M, Dickman, E M, et al.Nutrient cycling by fish supports relatively more primary production as lake productivity increases[J].Ecology, 2006, 87(7):1696-1709.
[10] Lu K H, Jin C H, Dong S L, et al.Feeding and control of blue-green algal blooms by tilapia(Oreochromis niloticus)[J].Hydrobiologia, 2006, 568:111-120.
[11] Van Dam, A A, Beveridge, M C, Azim, M E, et al.The potential of fish production based on periphyton[J].Reviews in Fish Biology and Fisheries, 2002.12(1):1-31
[12] 金相灿, 屠清瑛.湖泊富营养化调查规范[M].北京:中国环境科学出版社.1990.
[13] 章宗涉, 黄祥飞.淡水浮游生物研究方法[M].北京:科学出版社.1991.358-382.
[14] 李修岭.几种植物去除高度富营养化湖水中氮磷及抑藻效果的初步研究[J].武汉植物学研究, 2005, 23(1):53-57.
[15] 阮景荣.三种鱼的磷排泄及其在微型生态系统磷再循环中的作用[J].水生生物学报, 2005, 29(1):55-60.
[16] Huchette, Beveridge S M H, Baird M C M, et al.The impacts of grazing by tilapias(Oreochromis niloticus L.)on periphyton communities growing on artificial substrate in cages[J].Aquaculture, 2000, 186:45-60.
[17] Dempster P W, Beveridge M C M, Baird D J.Herbivory in the tilapia Oreochromis niloticus:a comparison of feeding rates on phytoplankton and periphyton[J].Journal offish biology, 1995, 43(33):385-392.
[18] 李宽意, 文明章, 杨宏伟, 等."螺-草"的互利关系[J].生态学报, 2007, 27(12):5427-5432.
[19] 李宽意, 刘正文, 杨宏伟, 等.螺类牧食与沉积物类型对苦草生长的影响[J].生态学报, 2007, 27(11):4907-4912.降海涛, 李贵生, 付晓艳.安南龟肝脏和肾脏的组织学观察[J].生态科学, 2010, 29(02):152-155.JIANG Hai-tao, LI Gui-sheng, FU Xiao-yan.Histological observation on the liver and kidney of Annamemys annamensis[J].Ecological Science, 2010, 29(2):152-155.

[1]	. [J]. Ecological Science, 2020, 39(1): 10-.