1995 Fiscal Year Final Research Report Summary
BEHAVIOR OF GIAIANT CRAB (MACROCHEIRA KAEMPFERI) BY ULTRASONIC BIOTELEMETORY
| Project/Area Number |
05660221
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
General fisheries
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| Research Institution | TOKAI UNIVERSITY |
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Principal Investigator |
NAKAMURA Akira TOKAI UNIVERSITY,SCHOOL OF MARINE SCIENCE AND TECHNOLOGY,ASSISTANT PROFESSOR, 海洋学部, 助教授 (50056115)
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| Project Period (FY) |
1993 – 1995
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| Keywords | BAIOTELEMETRY / GAIANT CRAB / BEHAVIOR |
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| Research Abstract |
Approximatery size of gaiant crab (macrocheira kaempferi) for investigation was 180mm in width and 210mm in length. Migration of gaiant crab moved along constant course of equal depth line and its maximum moving speed was 100m/h order and its moving speed rapidly at night and slowly at daytime, its moving speed of female gaiant crab was rapidly than male. Around temperature of gaiant crab was obtained by two channel pinger, was 6-13ﾟC and brightness was 0.1-0.01 lux order. These change of value of temperature and brightness were not connected to behavior of gaiant crab. From compare these results and fishery, behavior of gaiant crab was considered to searching feed and spawning.
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