Induced behaviour in response to the environmental stimulation in Pacific bluefin tuna Thunnus orientalis
| Project/Area Number |
21780188
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
General fisheries
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| Research Institution | Kinki University |
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Principal Investigator |
TORISAWA Shinsuke Kinki University, 農学部, 研究員 (80399097)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | クロマグロ / 行動生理 / 完全養殖 / 行動モデル / 養殖 |
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| Research Abstract |
During growth of juvenils tuna (25-55 dph), the light intensity thresholds of schooling decreased from 5 to 0.05 lx. The thresholds of light intensities for the light adaptation of retinas in juveniles (25-55 dph) similarly decreased from 5 to 0.05 lx with growth. These data clearly indicate that the characteristics of schooling behaviour strongly correspond to the degree of vision development. These results suggest that juveniles can adapt to darker deep and off shore sea conditions during growth by developing improved visual capabilities
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Report
(3 results)
Research Products
(25 results)
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[Presentation] A technique of three-dimensional monitoring for free-swimming Pacific bluefin tuna Thunnus orientalis cultured in a net cage using a digital stereo-video camera system.2010
Author(s)
TORISAWA, S., Kadota, M., Komeyama, K., Suzuki, K., Takagi, T.
Organizer
French-Japanese symposium in IFREMER
Place of Presentation
SETE, France
Year and Date
2010-09-03
Related Report
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