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Effects of Substrate Size on the Growth of 4 Microphytobenthos Species (Achnanthes sp., Amphora sp., Navicula sp. and Nitzschia sp.)

저서미세조류 4종(Achnanthes sp., Amphora sp., Navicula sp. 그리고 Nitzschia sp.)의 성장에 영향을 미치는 부착기질 크기의 영향

  • Kwon, Hyeong-Kyu (Department of Oceanography, Pukyong National University) ;
  • Yang, Han-Soeb (Department of Oceanography, Pukyong National University) ;
  • Yu, Yeoung-Moon (LED-Marine Convergence Technology R&BD Center) ;
  • Oh, Seok-Jin (Department of Oceanography, Pukyong National University)
  • 권형규 (부경대학교 해양학과) ;
  • 양한섭 (부경대학교 해양학과) ;
  • 유영문 (부경대학교 LED-해양 융합기술 연구센터) ;
  • 오석진 (부경대학교 해양학과)
  • Received : 2011.08.01
  • Accepted : 2011.12.09
  • Published : 2012.01.31

Abstract

The effects of substrate size on the growth of microphytobenthos Achnanthes sp., Amphora sp., Navicula sp. and Nitzschia sp. were examined using glass beads in order for phytoremediation in the benthic layer of coastal waters. The glass beads used in this study were 0.09~0.15 mm (G.B 1), 0.25~0.50 mm (G.B 2), 0.75~1.00 mm (G.B 3) and 1.25~1.65 mm (G.B 4). No addition of glass bead used as control. The specific growth rate and maximum cell density of four microphytobenthos species were increasing with decreasing size of glass beads. Moreover, the control experiment without added attachment substrates showed the lowest specific growth rate and maximum cell density. Therefore, the suitable attachment substrates for mass culture of microphytobenthos seems to be important in order for phytoremediation using microphytobenthos.

Keywords

Phytoremediation;Achnanthes sp.;Amphora sp.;Navicula sp.;Nitzschia sp.;Substrate size

Acknowledgement

Grant : 해양 LED 융합 기술지원 기반구축 및 상용화 기술개발

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