2000 Fiscal Year Final Research Report Summary
DEVELOPMENT OF ROSSET-TYPE STERILE WATER SAMPLER FROM DIFFERENT DEPTHS FOR MICROBIOLOGICAL RESEARCH
| Project/Area Number |
10556043
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| Research Category |
Grant-in-Aid for Scientific Research (B).
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
General fisheries
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| Research Institution | OCEAN RESEARCH INSTITUTE, UNIVERSITY OF TOKYO |
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Principal Investigator |
OHWADA Kouichi OCEAN RESEARCH INSTITUTION, PROFESSOR, 海洋研究所, 教授 (30013585)
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| Co-Investigator(Kenkyū-buntansha) |
WADA Minoru OCEAN RESEARCH INSTITUTE, OCEAN RESEARCH INSTITUTE, UNIVERSITY OF TOKYO RESEARCH ASSOCIATE, 海洋研究所, 助手 (70292860)
NISHIMURA Masahiko OCEAN RESEARCH INSTITUTE, OCEAN RESEARCH INSTITUTE, UNIVERSITY OF TOKYO RESEARCH ASSOCIATE, 海洋研究所, 助手 (10242174)
KOGURE Kazuhiro OCEAN RESEARCH INSTITUTE, OCEAN RESEARCH INSTITUTE, UNIVERSITY OF TOKYO ASSOCIATE PROFESSOR, 海洋研究所, 助教授 (10161895)
KAWAKAMI Takashi CHIEF SCIENTIST, NICHIYU GIKEN KOGYO CO., 第4研究開発部, 課長(研究職)
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| Project Period (FY) |
1998 – 2000
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| Keywords | marine microorganisms / ultrasonic wave operation / sterile water sampler / Roset-type / water sampling from different layers |
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| Research Abstract |
A very new type of sterile water sampler for microbiological research has been developed. Specificaton for this sampler is as follows ; depth of the use is up to 6,000 m, capable of sampling from 15 different layers, and maximum volume of 1,000 ml. It is composed of onboard facility with ultrasonic generator and transducer, and under water facility with cramp unit, cutter unit, drive unit, pump unit, control unit, generator unit and a all-tight water tank. Ultrasonic wave sent from onboard facility will activate the water sampler and cut the tubing at the water entrance, and then pump unit will suck out water inside the all-tight water tank which will induce ambient water sarnple to introduce into sample bag inside the tank through silicone tubing by negative pressure. Control unit will operate the time for the sampler. This step will be continued at 15 different layers, All the system inside has been sterilized beforehand of course. We have successfully sampled water from surface to 6,000 m during KH-00-1 cruise by R/V Hakuho-maru and KT-00-9 cruise by R/V Tansei-maru.
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