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JRM Vol.27 No.5 pp. 571-578
doi: 10.20965/jrm.2015.p0571
(2015)

Paper:

Development of an Acetic Acid Injection Device for Crown-of-Thorns Starfish Controlled by a Remotely Operated Underwater Robot

Fumiaki Takemura*1, Shuta Kobashigawa*2, Keita Hirayama*2, Kuniaki Kawabata*3, Shinichi Sagara*4, Hideyuki Yamashiro*5, and Eisuke Kuraya*6

*1Department of Mechanical System Engineering, National Institute of Technology, Okinawa College
905 Henoko, Nago-shi, Okinawa 905-2192, Japan

*2Advanced Course, National Institute of Technology, Okinawa College
905 Henoko , Nago-shi, Okinawa 905-2192, Japan

*3The Naraha Remote Technology Development Center, Japan Atomic Energy Agency
1-22 Nakamaru, Yamadaoka, Naraha, Futaba, Fukushima 979-0513, Japan

*4Department of Mechanical and Control Engineering, Kyushu Institute of Technology
1-1 Sensui-cho, Tobata-ku, Kitakyushu-shi, Fukuoka 804-8550, Japan

*5Sesoko Station, Tropical Biosphere Research Center, University of the Ryukyus
3422 Sesoko, Motobu, Okinawa 905-0227, Japan

*6Science and Technology Division, National Institute of Technology, Okinawa College
905 Henoko, Nago-shi, Okinawa 905-2192, Japan

Received:
April 1, 2015
Accepted:
August 25, 2015
Published:
October 20, 2015
Keywords:
underwater robot, acetic acid injection device, crown-of-thorns starfish
Abstract
Injection into the starfish

We have been studying and developing an underwater robot for coral reef conservation. This paper describes the development of an acetic acid injection device mounted on an underwater robot for use in exterminating crown-of-thorns starfish that damage corals. First, we outlined the ecology and morphology of the crown-of-thorns starfish to identify requirements for the acetic acid injection device. Based on the requirements identified, we designed and prototyped an acetic acid injection device to be installed on an underwater robot. Next, we installed the developed injection device on a remotely operated vehicle and injected acetic acid into crown-of-thorns starfish under water. We describe the effectiveness of this acetic acid injection device for exterminating crown-of-thorns starfish. The experimental results prove that the developed acetic acid injection device can inject acetic acid into crown-of-thorns starfish just as intended, and that an underwater robot installed with such device can be used effectively to aid in the extermination of crown-of-thorns starfish.

Cite this article as:
F. Takemura, S. Kobashigawa, K. Hirayama, K. Kawabata, S. Sagara, H. Yamashiro, and E. Kuraya, “Development of an Acetic Acid Injection Device for Crown-of-Thorns Starfish Controlled by a Remotely Operated Underwater Robot,” J. Robot. Mechatron., Vol.27, No.5, pp. 571-578, 2015.
Data files:
References
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Last updated on Nov. 16, 2018