Title :
Acoustic alarms to reduce cetacean by-catch
Author_Institution :
Dept. of Electron.& Electr. Eng., Loughborough Univ.
Abstract :
Acoustic alarms, otherwise known as beacons or pingers, are designed to transmit certain sound patterns underwater as a deterrent effect on cetaceans in the vicinity of fishing nets. The device presented here has been successfully tested in Scotland and Denmark and has been shown to reduce the by-catch of harbour porpoises during a commercial fishing trial
Keywords :
alarm systems; aquaculture; oceanographic equipment; oceanographic techniques; underwater acoustic propagation; acoustic alarms; beacons; cetacean sound; commercial fishing trial; deterrent effect; fishing nets; harbour porpoise; pingers; underwater sound pattern transmission; Acoustic devices; Acoustic signal detection; Animals; Aquaculture; Auditory system; Batteries; Dolphins; Frequency; Transponders; Whales;
Conference_Titel :
Underwater Technology, 2004. UT '04. 2004 International Symposium on
Conference_Location :
Taipei
Print_ISBN :
0-7803-8541-1
DOI :
10.1109/UT.2004.1405586
