Effects on Nitrate on the Growth of Gametophytes of Laminaria religiosa
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- KAWAI Tadashi
- Hokkaido Nuclear Energy Environmental Research Center
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- OKA Naohiro
- Department of Agriculture, Ehime University
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- HIRAOKA Masanori
- Kochi Prefectural Deep Seawater Laboratory
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- YOTSUKURA Norishige
- Field Science Center for Northern Biosphere, Hokkaido University
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- NAKAME Yukihiro
- Hokkaido Nuclear Energy Environmental Research Center
Bibliographic Information
- Other Title
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- ホソメコンブ配偶体の生長に及ぼす硝酸塩の影響
- ホソメコンブ ハイグウタイ ノ セイチョウ ニ オヨボス ショウサンエン ノ エイキョウ
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Description
Yearly changes of concentration of nitrate and phosphate in Tomari, Hokkaido, Japan, from 1986 to 2001, were analyzed. Mean concentration of nitrate at 0m depth was 2.2±1.6SD (range, 0.3-6.1) μM. Gametophytes of Laminaria religiosa were cultured for 29 days in different nitrate concentrations (+0.0, +1.0, +2.0, +3.0, +4.0, +5.0, +6.0μM) in order to examine the effects of nitrate on the growth of gamethophytes in batch culture. Cell number of the gamethophytes increased at concentrations of more than +4.0μM nitrate. To observe the effects of deep seawater on growth of gamethophytes of L. religiosa, the gamethophytes were cultured in deep seawater at Otaru, Hokkaido, Japan, (concentration of nitrate, 15.8 μM) and in surface seawater at Yoichi. Hokkaido, (mean concentration of nitrate, 4.4μM) under laboratory conditions. After 29 days from start of batch culture, cell number in the deep seawater was 2.6 times of the cell number in surface seawater.
Journal
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- Journal of Fisheries Engineering
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Journal of Fisheries Engineering 41 (1), 35-38, 2004
The Japanese Society of Fisheries Engineering
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Details 詳細情報について
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- CRID
- 1390001205862310784
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- NII Article ID
- 110006279658
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- NII Book ID
- AN10278554
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- ISSN
- 21897131
- 09167617
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- NDL BIB ID
- 7040735
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- Text Lang
- ja
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- Article Type
- journal article
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- Data Source
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- JaLC
- IRDB
- NDL Search
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
