A mathematical model for induced behaviour in response to the environmental stimulation in Pacific bluefin tuna Thunnus orientalis
Project/Area Number |
23580269
|
Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
General fisheries
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Research Institution | Kinki University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
KADOTA Minoru 近畿大学, 農学部, 研究員 (00596231)
|
Project Period (FY) |
2011 – 2013
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
|
Keywords | 行動生理 / クロマグロ / 養殖 / 行動モデル / 感覚器 |
Research Abstract |
In order to make quantitative statements regarding behavior patterns in animals, it is important to establish whether new observations are statistically consistent with the animal's equilibrium behavior. From the perspective of information theory such a bias can be interpreted as the amount of information gained from a new measurement, relative to an existing equilibrium distribution. We demonstrate the utility of the relative entropy by analyzing observed speed distributions of Pacific bluefin tuna. We show that the tuna's behavior is modified by traumatic stress, and that the resulting modification is dominated by the difference in central tendencies of the two distributions. We find that the tuna's behavior is significantly altered for ca. 5 hours after release. Our analysis reveals a periodic fluctuation in speed corresponding to the moment just before sunrise on each day, a phenomenon related to the tuna's daily diving pattern that occurs in response to changes in ambient light
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Report
(4 results)
Research Products
(61 results)
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[Presentation] 魚群遊泳の流体力学的機能性2014
Author(s)
髙木力・伊藤静香・鳥澤眞介・稲田喜信
Organizer
平成26年度日本水産学会春季大会
Place of Presentation
北海道大学水産学部部,函館
Year and Date
2014-03-30
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