Effect of Ship Noise on Marine Mammals

2014 Fiscal Year Final Research Report

• Project/Area Number: 25630404
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Naval and maritime engineering
• Research Institution: Osaka University
• Principal Investigator: UMEDA Naoya 大阪大学, 工学(系)研究科(研究院), 准教授 (20314370)
• Co-Investigator(Kenkyū-buntansha): AKAMATSU Tomonari 独立行政法人水産総合研究センター, 水産工学研究所, グループ長 (00344333) ; MASUYAMA Yutaka 金沢工業大学, 実海域船舶海洋研究所, 名誉教授 (10101362) ; SAKURADA Akiko 独立行政法人海上技術安全研究所, 流体設計系, 研究員 (00734237)
• Research Collaborator: KUNIEDA Yoshiaki 独立行政法人航海訓練所, 教授 ; UYAMA Hisashi 独立行政法人航海訓練所, 日本丸船長 ; MORI Kyouichi 帝京科学大学, 生物環境学部, 准教授 ; TANIGUCHI Kazuyoshi 能登島イルカ保護委員会, 会長 ; IKEGAMI Tadashige 向田漁業生産組合, 組合長 ; SUGAWARA Shigeru 能登島イルカ, 海洋研究所, 代表 ; MITSUI Hiroshi 金沢工業大学, 実海域船舶海洋研究所
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: marine mammals / underwater acoustics / ship noise / sailing ship / powered ship / dolphin / marine ecology

Outline of Final Research Achievements

We investigated effects of ship noise on marine mammals by using a fully-rigged sailing ship off Japanese Isles and by using a sailing yacht and powered ship near Notojima with towed underwater acoustic sensors. In the former survey, frequency to meet marine mammals was not so high that we failed to obtain significant data. On the other hand, in the latter survey, we frequently measured responses of groups of Indo-Pacific bottlenose dolphin to two types of ship. The results demonstrates that no significant difference in their responses between the sailing ship and the motor ship at low speed.

Free Research Field

船舶海洋工学