Journal of the Graduate School of Biosphere Science, Hiroshima University Volume 47
2008-12-20 発行

海産付着珪藻Nitzschia sp.の増殖に対する酸化マグネシウム混合ポリエチレン被覆鋼線の影響

Effects of magnesium oxide-added polyethylene-coated steel wire on the growth of attached marine diatom Nitzschia sp.
Haraguchi, Koichi
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abstract
Many organisms attached on suspended oyster culture rafts, particularly filter-feeding animals can prevent growth of culturing oyster, because they are competing feeds with oyster in the same niche. In the present study, effects of steel wires coated with various materials on growth of the ubiquitous attached diatom Nitzschia sp. were experimentally examined to develop a better steel wire in terms of less attached organisms. The wire used were a normal zinc-galvanized steel wire, a polyethylene (ionomer resin)-coated steel wire, and magnesium oxide (HUS®)-added (3% and 5%) polyethylene coated steel wires. Following results were obtained, (1) all wires coated with different materials except the ionomer resin itself (as coating material) suppressed the growth of Nitzschia sp., and (2) 5% HUS®-added polyethylene-coated steel wire suppressed the growth of Nitzschia sp. greater than 3% added one did.
description
この研究は,トワロン株式会社による寄付金「HUSによる藻の発生変化の研究」により行われたものである。
subject
カキ
鋼線
珪藻
ポリエチレン
HUS
diatom
oyster
polyethylene
steel wire