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The effects of restoration techniques on protozoan communities in mandarin fish culture ponds, based on an artificial substrate
Huang, J.; Lin, W.; Shi, C.; Wu, S.; Xu, R. (2010). The effects of restoration techniques on protozoan communities in mandarin fish culture ponds, based on an artificial substrate. Aquacult. Int. 18(3): 339-348.
In: Aquaculture International. Springer: London. ISSN 0967-6120, more
Peer reviewed article  

Available in  Authors 

    Polyurethane foam; Pond culture; Restoration; Technology; Marine
Author keywords
    Protozoan community; Polyurethane foam unit (PF unit) method;Restoration technology; Mandarin fish culture pond

Authors  Top 
  • Huang, J.
  • Lin, W.
  • Shi, C.
  • Wu, S.
  • Xu, R.

    By use of the polyurethane foam unit (PF unit) method, structural and functional data for protozoan communities were assessed as indicators of the effect of restoration techniques in mandarin fish culture ponds. A total of 165 species of protozoa were observed, including 76 species of ciliates, 57 species of phytomastigophorans, 14 species of zoomastigophorans, and 18 species of sarcodinas. In June, 97 protozoan species colonized the PF units. In August, the number of colonizing species was only 78. In November, a total of 139 species were recorded. In June and August the co-dominant species of protozoans were mainly heterotrophic creatures which feed on bacteria and organic detritus. In November, the co-dominant species were mostly phytoflagelates. The average DO value in the control pond was very low at all times throughout the survey. Removing the sediment, changing the water, and adding compound microbiological preparation had substantial and important effects on reducing total ammonium nitrogen and nitrite nitrogen. Compared with the control ponds, the numbers of protozoan species colonizing the experimental ponds reached its maximum level more slowly and the protozoan community pollution values were lower. The dynamic characteristics of the protozoan colonization process and community pollution values were in agreement with water eutrophic status and could be used for efficient monitoring of the effects of restoration techniques.

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