JPH0244491B2 - - Google Patents

Info

Publication number
JPH0244491B2
JPH0244491B2 JP56052470A JP5247081A JPH0244491B2 JP H0244491 B2 JPH0244491 B2 JP H0244491B2 JP 56052470 A JP56052470 A JP 56052470A JP 5247081 A JP5247081 A JP 5247081A JP H0244491 B2 JPH0244491 B2 JP H0244491B2
Authority
JP
Japan
Prior art keywords
dolphins
oscillator
intermittent
signal generator
periodic signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP56052470A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57170125A (en
Inventor
Kenji Okazaki
Yukio Nomoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ryokuseisha KK
Original Assignee
Ryokuseisha KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ryokuseisha KK filed Critical Ryokuseisha KK
Priority to JP5247081A priority Critical patent/JPS57170125A/ja
Publication of JPS57170125A publication Critical patent/JPS57170125A/ja
Publication of JPH0244491B2 publication Critical patent/JPH0244491B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mechanical Means For Catching Fish (AREA)
  • Catching Or Destruction (AREA)
JP5247081A 1981-04-09 1981-04-09 Sound generator for expeling dolphin Granted JPS57170125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5247081A JPS57170125A (en) 1981-04-09 1981-04-09 Sound generator for expeling dolphin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5247081A JPS57170125A (en) 1981-04-09 1981-04-09 Sound generator for expeling dolphin

Publications (2)

Publication Number Publication Date
JPS57170125A JPS57170125A (en) 1982-10-20
JPH0244491B2 true JPH0244491B2 (enExample) 1990-10-04

Family

ID=12915596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5247081A Granted JPS57170125A (en) 1981-04-09 1981-04-09 Sound generator for expeling dolphin

Country Status (1)

Country Link
JP (1) JPS57170125A (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06217666A (ja) * 1993-01-25 1994-08-09 Midori Inoue 漁獲方法
GB0707640D0 (en) * 2007-04-20 2007-05-30 Strathclyde Acoustic deterrence
CN108007560B (zh) * 2017-11-28 2020-04-03 自然资源部第三海洋研究所 一种基于中高频信号的海豚声学保护装置及其保护方法
GB2575279B (en) * 2018-07-04 2022-04-13 Fishtek Marine Ltd Pinger For Deterring Toothed Whales

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS561042B2 (enExample) * 1972-06-23 1981-01-10
JPS5814167B2 (ja) * 1979-03-13 1983-03-17 島田理化工業株式会社 イルカ類の威嚇駆逐法

Also Published As

Publication number Publication date
JPS57170125A (en) 1982-10-20

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