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This was done to understand how light effects these species so that we might use this knowledge to establish a more efficient aquaculture protocol. We used four different light wavelengths (white, with peaks at 460 and 570?nm; blue at 470?nm; green at 525?nm; and red at 660?nm) and four intensities (i.e., 0.5?30.0?W/m2). Using micro-spectrophotometry we determined that eyespots of these two Brachionus species absorbed blue and green light 5.5 times more than red light. B. plicatilis s. s. showed positive phototaxis under white, blue, and green light at lower light intensities, but no phototaxis under red light at all intensities (0.5, 6.2, 15.0, and 30.0?W/m2). Similar patterns of phototaxis were observed in B. manjavacas and did not differ among mictic, amictic females, and male rotifers. Population growth rate of B. plicatilis s. s. under dark condition was 1.1?1.2 times higher than that under white light condition. 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Behavior and reproduction of the rotifer Brachionus plicatilis species complex under different light wavelengths and intensities
http://hdl.handle.net/10069/34263
http://hdl.handle.net/10069/34263c16a4970-cf7a-4b49-b150-f3e91964b00f
名前 / ファイル | ライセンス | アクション |
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IRH99_151.pdf (223.3 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-04-01 | |||||
タイトル | ||||||
タイトル | Behavior and reproduction of the rotifer Brachionus plicatilis species complex under different light wavelengths and intensities | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Eyespots | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Light | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Micro-spectrophotometry | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Photoreception | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Phototaxis | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Kim, Hee-Jin
× Kim, Hee-Jin× Sawada, Chihona× Hagiwara, Atsushi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We investigated the influence of light on phototactic behavior and reproduction in two species of rotifer from the Brachionus plicatilis species complex (B. plicatilis sensu stricto (s. s.) and Brachionus manjavacas). This was done to understand how light effects these species so that we might use this knowledge to establish a more efficient aquaculture protocol. We used four different light wavelengths (white, with peaks at 460 and 570?nm; blue at 470?nm; green at 525?nm; and red at 660?nm) and four intensities (i.e., 0.5?30.0?W/m2). Using micro-spectrophotometry we determined that eyespots of these two Brachionus species absorbed blue and green light 5.5 times more than red light. B. plicatilis s. s. showed positive phototaxis under white, blue, and green light at lower light intensities, but no phototaxis under red light at all intensities (0.5, 6.2, 15.0, and 30.0?W/m2). Similar patterns of phototaxis were observed in B. manjavacas and did not differ among mictic, amictic females, and male rotifers. Population growth rate of B. plicatilis s. s. under dark condition was 1.1?1.2 times higher than that under white light condition. No significant differences were observed in population growth rate at 3.8 and 6.2?W/m2 at all light wavelengths. On the other hand, population growth rates at 0.5 and 1.6?W/m2 were the lowest under blue light. According to these results, both wavelength and intensity of light affect the population growth of rotifers, which in turn may be influenced by the rotifers' wavelength-dependent phototaxis. | |||||
書誌情報 |
International Review of Hydrobiology 巻 99, 号 1-2, p. 151-156, 発行日 2014-03 |
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出版者 | ||||||
出版者 | WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 14342944 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1002/iroh.201301715 | |||||
権利 | ||||||
権利情報 | c 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim | |||||
権利 | ||||||
権利情報 | This is the accepted version of the following article: International Review of Hydrobiology, 99(1-2), pp.151-156; 2014, which has been published in final form at http://dx.doi.org/10.1002/iroh.201301715 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | International Review of Hydrobiology, 99(1-2), pp.151-156; 2014 |