|Table of Contents|

Top-down Effect Control of Fish Experiment for Excess Propagation of Cyclops

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2008年05期
Page:
646-650
Research Field:
Publishing date:

Info

Title:
Top-down Effect Control of Fish Experiment for Excess Propagation of Cyclops
Author(s):
LIN Tao12CUI Fu-yi2CHEN Wei1LIU Dong-mei2
1.Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes,Ministry of Education,Hohai University,Nanjing 210098,China;2.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China
Keywords:
filter-feeding fishes Cyclops zooplankton top-down effect biomanipulation
PACS:
TU991.25
DOI:
-
Abstract:
This paper investigates the control of the excess propagation of Cyclops by the top-down effect of fish,such as silver carp and bighead carp under different stocking biomass conditions.The biomass between silver carp and bighead carp is in a ratio of 7∶3 during the experiment.The experimental results show that the propagation of Cyclops can be controlled effectively at proper fish stocking density of 30 g per cubic meter of water.The phosphorus in fish organism and depositional substance increases 45% and 16% respectively in the ecosystem of 30 g fish biomass,which is helpful to decrease the recycle speed of sedimentary nutriment.The top-down effect of fish is weakened not to effectually control the growth of Cyclops with lower biomass of fish(10 g/m3),and the concentration of granular phosphorus increases 60%.The high predator pressure accelerates supplemental rate of nutrients from bottom sediments and increases the content of total phosphorus by 23% at the intense stocking of 120 g per cubic meter of water.

References:

[1] 崔福义, 林涛, 马放, 等. 水源中水蚤类浮游动物的 孳生与生态控制研究[ J]. 哈尔滨工业大学学报, 2002, 34( 3): 399- 403.
[2] O la jide I, Sr idharM K. Gu ineaw orm contro l in an endem ic area in western n ige ria [ J]. Aqua ( Ox fo rd ), 1987, 6: 333- 339.
[3] Lin T, Cu i F Y, Liu D M. Fu l-l scale study of rem ova l effec t on Cyc lops of zooplankton w ith chlor ine diox ide [ J ]. Journal o f Env ironmenta l Sc iences, 2004, 11 ( 5) : 234- 239.
[4] Liu D M, Cu i F Y, L in T. Pre lim inary study on b iolog ica l control of Cyc lops of zooplankton in drink ing w ater source[ J]. Journa l o fH arb in Institute o f Techno logy, 2004, 11( 2): 121- 125.
[5] 李琪. 鲢鱼对浮游生物群落结构的影响[ J]. 生态学 报, 1993, 13: 30- 37.
[6] Sm ith D W. B iolog ica l contro l o f ex cessive phy toplankton grow th and the enhancem en t of aquacultura l production[ J] . Can J F ish Aqua Sc,i 1985, 42: 1 940 - 1 945.
[7] X ie P. Exper imenta l stud ies on the ro le of planktivorous fishes in the e lim ina tion o fm icrocystis bloom from Donghu Lake using enclosure m ethod [ J ]. Ch in J O ceana l L imno,l 1996, 14( 3): 193- 204.
[8] Starling M. Contro l o f eutroph ication by silver carp ( H ypophthalm ichthysm o litrix ) in the tropical Parano a Reservo ir ( Brasilia, B razil): a m esocosm exper im ent [ J]. H ydrobio log ia, 1993, 257: 143- 152.
[9] Brooks J L, Dodson S I. Predation body- size and composition of plankton[ J] . Science, 1965, 150: 28- 35.
[10] K itcheil J F. Consume r regu lation o f nutr ient cy cling [ J]. B ioscience, 1979, 29: 28- 34.
[11] Boers P, Ba llegoo ijen L V, Uunk J. Changes in phospho rus cyc ling in a sha llow lake due to food w eb man ipu lation[ J]. Freshwa t B io ,l 1991, 25: 9- 20

Memo

Memo:
-
Last Update: 2012-12-19