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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第62巻 第3号 >
培養条件下で観察された赤潮ラフィド藻 Chattonella marina の 高い増殖速度
| Title: | 培養条件下で観察された赤潮ラフィド藻 Chattonella marina の 高い増殖速度 |
| Other Titles: | High growth rates of the red tide flagellate Chattonella marina (Raphidophyceae) observed in culture |
| Authors: | 今井, 一郎1 Browse this author →KAKEN DB |
| Authors(alt): | Imai, Ichiro1 |
| Keywords: | Red tide | | Chattonella marina | | Growth | | Nutrients |
| Issue Date: | 14-Dec-2012 |
| Publisher: | 北海道大学大学院水産科学研究院 |
| Journal Title: | 北海道大学水産科学研究彙報 |
| Journal Title(alt): | Bulletin of Fisheries Sciences, Hokkaido University |
| Volume: | 62 |
| Issue: | 3 |
| Start Page: | 71 |
| End Page: | 74 |
| Abstract: | Growth of the fish-killing raphidophyte Chattonella marina MS3-P was examined in the 200 mL modified SWM-3 culture medium in a 500-mL flask at a temperature of 25C with light intensity of 120 mol photons m-2 sec-1 under a photo-cycle of 14hL-10hD. Growth conditions were supposed to be ideal and sufficient to achieve the potentially maximum growth rates, and the obtained growth rates were 1.42 and 1.48 divisions day-1. C. marina MS3-P also grew in the filter-sterilized (0.1 m pore) seawater (collected in winter) with a growth rate of 0.81 divisions day-1, suggesting a possibility that C. marina can reach from the cell density of several cells mL-1 to the red tide level of several hundreds cells mL-1 (fish-killing level) or higher within about a week. These rather higher growth rates presumably contribute to form harmful red tides in the coastal seas of Japan such as the Seto Inland Sea, Yatsushiro Sea, and other embayments. |
| Type: | bulletin (article) |
| URI: | http://hdl.handle.net/2115/51115 |
| Appears in Collections: | 北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第62巻 第3号
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