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Volume 3 Issue 2
Jun.  2012
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Article Navigation >  Journal of Tropical Biology  > 2012  >  3(2): 99-103

LI Shuang-bo, WANG Mei-fang, SUN Cheng-bo, WANG Bing-bing, YU Xiang-yong. Influences of Metabolites of Pinctada martensii on the Growth of Sargassum fusiforme[J]. Journal of Tropical Biology, 2012, 3(2): 99-103. doi: 10.15886/j.cnki.rdswxb.2012.02.018
Citation: LI Shuang-bo, WANG Mei-fang, SUN Cheng-bo, WANG Bing-bing, YU Xiang-yong. Influences of Metabolites of Pinctada martensii on the Growth of Sargassum fusiforme[J]. Journal of Tropical Biology, 2012, 3(2): 99-103. doi: 10.15886/j.cnki.rdswxb.2012.02.018
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Influences of Metabolites of Pinctada martensii on the Growth of Sargassum fusiforme

doi: 10.15886/j.cnki.rdswxb.2012.02.018

  • College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China

  • Received Date: 2012-05-03
  • During the polyculture of shellfish Sargassum fusiforme and algae Pinctada martensii,we compared the growth differences of algae in the experimental group with shellfish,the simulation group without shellfish and the control group by measuring the amount of nitrogen and phosphorus released by the shellfish and absorbed by the algae.Furthermore,the removal rate and the absorptivity of the algae for the metabolic products of the shellfish were also determined.Results showed that NH+4-N is the main form of nitrogen which P.martensii released and S.fusiforme absorbed.Four metabolites are NH+4-N,NO-3-N,NO-2-N and PO43+-P,and their release ratio from the shellfish is 27:21:1:18 while the algae absorption ratio 17:12:1:2.6.Analysis of variance showed that algae in the experimental group played a significant role in promoting the absorption rate of nitrogen and phosphorus（P＜0.05） when compared to the simulation group.Meanwhile,Duncan’s multiple comparisons between the groups showed that daily weight gain and daily growth gain of S.fusiforme were significantly different among all the groups（P＜0.05） and increased in the order of the experimental group＞the control group C＞the stimulation group＞the control group A＞the control group B,which indicates that the metabolites of P.martensii can promote the growth of S.fusiforme.This research provides a theoretical basis for optimizing the polyculture density of P.martensii and S.fusiforme.
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Influences of Metabolites of Pinctada martensii on the Growth of Sargassum fusiforme

doi: 10.15886/j.cnki.rdswxb.2012.02.018
  • College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
  • Received Date: 2012-05-03

Abstract: During the polyculture of shellfish Sargassum fusiforme and algae Pinctada martensii,we compared the growth differences of algae in the experimental group with shellfish,the simulation group without shellfish and the control group by measuring the amount of nitrogen and phosphorus released by the shellfish and absorbed by the algae.Furthermore,the removal rate and the absorptivity of the algae for the metabolic products of the shellfish were also determined.Results showed that NH+4-N is the main form of nitrogen which P.martensii released and S.fusiforme absorbed.Four metabolites are NH+4-N,NO-3-N,NO-2-N and PO43+-P,and their release ratio from the shellfish is 27:21:1:18 while the algae absorption ratio 17:12:1:2.6.Analysis of variance showed that algae in the experimental group played a significant role in promoting the absorption rate of nitrogen and phosphorus（P＜0.05） when compared to the simulation group.Meanwhile,Duncan’s multiple comparisons between the groups showed that daily weight gain and daily growth gain of S.fusiforme were significantly different among all the groups（P＜0.05） and increased in the order of the experimental group＞the control group C＞the stimulation group＞the control group A＞the control group B,which indicates that the metabolites of P.martensii can promote the growth of S.fusiforme.This research provides a theoretical basis for optimizing the polyculture density of P.martensii and S.fusiforme.

LI Shuang-bo, WANG Mei-fang, SUN Cheng-bo, WANG Bing-bing, YU Xiang-yong. Influences of Metabolites of Pinctada martensii on the Growth of Sargassum fusiforme[J]. Journal of Tropical Biology, 2012, 3(2): 99-103. doi: 10.15886/j.cnki.rdswxb.2012.02.018
Citation: LI Shuang-bo, WANG Mei-fang, SUN Cheng-bo, WANG Bing-bing, YU Xiang-yong. Influences of Metabolites of Pinctada martensii on the Growth of Sargassum fusiforme[J]. Journal of Tropical Biology, 2012, 3(2): 99-103. doi: 10.15886/j.cnki.rdswxb.2012.02.018
shu

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